8 billion . . . and counting

This is the latest estimate of the world’s population announced by the United Nations on 15 November 2022. Can you imagine? I was born 74 years ago when the population was just over a quarter of what it is today.

So many more mouths to feed, so many challenges to overcome. And population growth fastest in many of the world’s poorest countries.

The UN’s latest prediction is that another billion will be added by 2037, and that . . . half of the world’s population growth will be concentrated in just nine countries: India, Nigeria, the Democratic Republic of the Congo, Pakistan, Ethiopia, the United Republic of Tanzania, the United States of America, Uganda and Indonesia (ordered by their expected contribution to total growth).


In 2021, the Food and Agriculture Organization of the UN or FAO reported that 193 million people in 53 countries or territories were facing acute food insecurity. And while conflict and the effects of the Covid pandemic are contributors to this state of affairs, there is no doubt that weather extremes are also a major contributing factor, affecting many more people worldwide. More frequent storms. Too much water—or too little. Rising temperatures reducing the agricultural productivity in many regions.

Sustainable food and agricultural production were appropriately important themes at the latest climate change conference—COP27—in Egypt. The Consultative Group on International Agricultural Research or CGIAR, the Food and Agriculture Organization of the UN or FAO, and the Rockefeller Foundation together were prominent at COP27 with the aim of putting agrifood systems transformation at the heart of the conference.

So, whether you are a believer in climate change or a denier (I’ve never been a climate change denier—quite the opposite, in fact), surely you have to accept that something strange is happening to our climate.

More than 30 years ago, two University of Birmingham colleagues—Brian Ford-Lloyd and Martin Parry—and I organized a workshop to discuss the impact of climate change on agriculture and the conservation of plant genetic resources (and how they could, and should, be used to mitigate the effects of a warming climate). The proceedings were published in 1990. Twenty-five years later, in 2014, we followed up with a second volume reflecting how the science of climate change itself had progressed, and how better we were equipped to use genetic resources to enhance crop productivity.


So while agriculture has been—and continues to be—one of the contributors to climate change (livestock, methane from rice paddies, use of fertilizers and the like) it can and has to be part of the solution.

Since more than half of the world’s population are now urban dwellers, they do not produce their own food. Or at least not enough (even if they grow their own vegetables and such on small holdings or allotments) to support many others.

Subsistence farming is not a solution either, even though these farmers can increase productivity by adopting new agricultural practices and higher-yielding crop varieties, if appropriate and affordable. And those campaigners who advocate the abolition of livestock farming (and I have seen one young person state that all farming should be stopped!) have little notion of how that would affect the lives of farmers globally, or where the rest of us would source our food.

There has been much talk recently about diversification of farming systems and adoption of so-called ‘orphan crops’ as part of the solution. Of course these approaches can make a difference, but should not diminish the role and importance of staple crops like wheat, maize, rice, potatoes, sorghum, and many others.

So what are the options? Investment in plant breeding, among others, has to be central to achieving food security. We will need a pipeline of crop varieties that are better adapted to changing environmental conditions, that are one step ahead of novel pest and disease variants. Crop productivity will have to increase significantly over the next few decades.


My first encounter with plant breeding—or plant breeders for that matter—was during a visit, in July 1969, to the Plant Breeding Institute (PBI) in Cambridge during a field course at the end of my second year undergraduate degree course at the University of Southampton. We heard all about wheat breeding and cytogenetics from Dr Ralph Riley FRS (right) no less (later knighted and Director of the PBI from 1972 to 1978). Our paths crossed again several times during the 1990s when he was associated with the CGIAR.

During my third and final year at Southampton, 1969-1970, I enjoyed a plant breeding module taught by genetics lecturer Dr Joe Smartt whose original research background was in peanut cytogenetics. He had spent some years in Africa as a peanut breeder in Zambia (then known as Northern Rhodesia).

It was in that course that I was introduced to one of the classic texts on the topic, Principles of Plant Breeding by University of California-Davis geneticist, RW Allard (first published in 1960). Sadly I no longer have my copy that I purchased in 1969. It was devoured by termites before I left the Philippines in 2010.

I’ve never been actively involved in plant breeding per se. However, the focus of my research was the conservation of genetic resources (of potatoes and rice, and some other species) and pre-breeding studies to facilitate the use of wild species in plant breeding.


It’s been my privilege to know and work with some outstanding plant breeders. Not only did they need a knowledge of genetics, reproductive behavior, physiology and agronomy of a plant species, but this was coupled with creativity, intuition and the famous ‘breeder’s eye’ to develop new varieties.

Perhaps the most famous plant breeder I met in the early 1990s was 1970 Nobel Peace Laureate (and ‘Father of the Green Revolution’) Norman Borlaug, who spent a lifetime breeding wheat varieties, first with the Rockefeller Foundation and then with the International Center for the Improvement of Maize and Wheat (CIMMYT) in Mexico. I wrote about that encounter here.

Explaining how rice seeds are stored in the International Rice Genebank at IRRI to Nobel Peace Laureate Norman Borlaug

In the potato world I met Stan Peloquin from the University of Wisconsin, George Mackay in Scotland, and John Hermsen from Wageningen University. I worked alongside Peruvian potato breeder and taxonomist Carlos Ochoa (below) for several years.

When I joined IRRI in the Philippines in 1991 as head of the Genetic Resources Center, one of my close colleagues was 1996 World Food Prize Laureate Gurdev Khush (below left) who led the institute’s breeding program. He and his team bred more than 300 varieties of rice, some of which—like IR36 and IR72—have been grown over millions of hectares and saved countless millions from starvation.

And another rice breeder (and 2004 World Food Prize Laureate) famous for NERICA rice was Monty Jones (above right) at the Africa Rice Center in West Africa. Monty was a graduate at Birmingham and I was the internal examiner for his PhD thesis in 1983.


Plant breeding has come a long way since I first became interested 50 years ago. Breeders now have access to a whole new toolbox to accelerate the development of new varieties, some of which were not available just a few years ago.

A decade ago I asked my friend and former colleague at IRRI, Ken McNally to contribute a review of genomics and other ‘omics’ technologies to discover and analyse useful traits in germplasm collections to the 2014 genetic resources book that I referred to earlier [1]. I’m sure there have been many useful developments in the intervening years.

One of these is gene editing, and Nicholas Karavolias (a graduate student at Berkeley University) has written an interesting review (from which the diagram above was sourced) of how the CRISPR gene editing tool is being used to improve crops and animals.

Among the climate change challenges that I mentioned earlier is the likelihood of increased flooding in many parts of the world. Just last year there were devastating floods along the Indus River in Pakistan where rice is an important crop, as it is in many Asian countries. Although grown in standing water in paddy fields, rice varieties will die if totally submerged for more than a few days when floods hit.

Rice paddies near Vientiane, Laos.

There are rice varieties that can grow rapidly as flood waters rise. Known as deepwater rice varieties, they can grow several centimeters a day. But they are never submerged as such for long.

The harvest of deepwater rice varieties in Thailand.

Over several decades, submergence tolerant rice varieties were developed in a collaborative project between US-based scientists and those at IRRI using marker-assisted selection (not genetic engineering) to identify a gene, named Sub1 (derived from an Indian rice variety) and incorporate it into breeding lines. My former IRRI colleagues, plant physiologist Abdelbagi Ismail and breeder David Mackill have written about response to flooding. In the video below you can see the impact of the Sub1 gene [2]. And the impact of that gene is readily seen in the video below which shows two forms of the rice variety IR64 with and without the Sub1 gene.

To date, the impact of genetic engineering in crop improvement has not been as significant as the technology promised, primarily because of opposition (environmental, social, and political) to the deployment of genetically-modified varieties. I wrote about that issue some years back, and focused on the situation of beta-carotene rich rice known as ‘Golden Rice’. After many years of development, it’s gratifying to see that Golden Rice (as the variety Malusog) has now been grown commercially in the Philippines for the first time, and can now deliver real health and nutritional benefits to Vitamin A impoverished communities in the Philippines and hopefully elsewhere before too long.

In recent weeks there have been interesting news releases about the development of perennial rice and its potential to mitigate some climate change effects, and reduce labor usage. Researchers at the John Innes Centre in the UK have identified a gene that they hope will make wheat varieties more heat-resistant. The need for trait identification has never been greater or the importance of the hundreds of thousands of crop varieties and wild species that are safely conserved in genebanks around the world. Fortunately, as mentioned earlier, there are now better and more efficient tools available to screen germplasm for disease and pest resistance, or for genes like the wheat gene just discussed.

In terms of adaptation to a changing climate through plant breeding, I guess much of the focus has been on developing varieties that are better adapted to changing environment, be that the physical or biotic environment.

But here’s another challenge that was first raised some years back by one of my former colleagues at IRRI, Melissa Fitzgerald (right) who was head of the Grain Quality, Nutrition, and Postharvest Center, and is now Professor and Interim Head of the School of Agriculture and Food Sciences at the University of Queensland, Australia.

And it’s to do with the potential global savings of carbon. Melissa and her colleagues were looking at the cooking time of different rice varieties. This is what she (and her co-authors wrote in an interesting 2009 paper):

The cooking time of rice is determined by the temperature at which the crystalline structures of the starch begin to melt. This is called gelatinization temperature (GT). Lowering the GT of the rice grain could decrease average cooking times by up to 4 min. Although this might initially seem entirely insignificant, by computing the number of times rice is cooked in any one day by millions of households around the world, a decrease of just 4 min for each cooking event could save >10,000 years of cooking time each day. This represents massive potential for global savings of carbon and is of particular relevance to poor, rural households that depend on scarce local supplies of fuel.

Now there’s a huge breeding challenge.

Anyway, in this post I’ve really only scratched the surface of the topic, but hopefully for those readers not familiar with plant breeding, what it entails, and what it can promise, I hope that I’ve explored a few interesting aspects.


[1] McNally, KL. 2014. Exploring ‘omics’ of genetic resources to mitigate the effects of climate change. In: M Jackson, B Ford-Lloyd & M Parry (eds), Plant Genetic Resources and Climate Change. CABI, Wallingford, UK. pp. 166-189

[2] Ismail, AM & Mackill, DJ. 2014. Response to flooding: submergence tolerance in rice. In: M Jackson, B Ford-Lloyd & M Parry (eds), Plant Genetic Resources and Climate Change. CABI, Wallingford, UK. pp. 251-269.

Launching a career in agricultural research

Over a career spanning almost four decades, I spent more than 27 years in international agricultural research in South and Central America, and Asia. And a decade teaching at the University of Birmingham.

It all started on this day, 50 years ago, when I joined the International Potato Center (CIP) in Lima, Peru as an Associate Taxonomist.

But first, let me take you back a couple of years, to September 1970.


I’d enrolled at the University of Birmingham for the MSc degree in Conservation and Utilization of Plant Genetic Resources, taught in the Department of Botany. It was the following February that I first heard about the possibility of joining CIP.

The head of department, potato expert Professor Jack Hawkes had just returned from a six week expedition to Bolivia (to collect wild species of potato) that was supported, in part, by the USAID-North Carolina State University-sponsored potato program in Peru.

The American joint leader of that program, Dr Richard Sawyer (left), mentioned to Jack that he wanted to send a young Peruvian scientist, Zosimo Huamán, to Birmingham for the MSc course in September 1971, and could he suggest anyone to fill a one-year vacancy.

On the night of his return to Birmingham, Jack phoned me about this exciting opportunity. And would I be interested. Interested? I’d long had an ambition to travel to South America, and Peru in particular.

However, my appointment at CIP was delayed until January 1973. Why? Let me explain.


In 1971, Sawyer was in the final stages of setting up the International Potato Center. However, a guaranteed funding stream for this proposed research center had not been fully identified.

At that time, there were four international agricultural research centers:

  • the International Rice Research Institute (IRRI) in Los Baños, the Philippines (founded in 1960);
  • the International Center for the Improvement of Maize and Wheat (CIMMYT) near Mexico City (1966);
  • the International Institute for Tropical Agriculture (IITA) in Ibadan, Nigeria (1967); and
  • the International Center for Tropical Agriculture (CIAT) in Cali, Colombia (also 1967).

All received bilateral funding from several donors, like the non-profit Rockefeller and Ford Foundations for example, or government agencies like USAID in the USA or the UK’s Overseas Development Administration.

In May 1971 there was a significant development in terms of long-term funding for agricultural research with the setting up of the Consultative Group on International Agricultural Research or CGIAR (an umbrella organization of donors, run from the World Bank in Washington, DC) to coordinate and support the four centers I already mentioned, and potentially others (like CIP) that were being established.

Since its inception, CGIAR-supported research was dedicated to reducing rural poverty, increasing food security, improving human health and nutrition, and ensuring more sustainable management of natural resources.

For more than 50 years, CGIAR and partners have delivered critical science and innovation to feed the world and end inequality. Its original mission—to solve hunger—is now expanding to address wider 21st century challenges, with the aim of transforming the world’s food, land, and water systems in a climate crisis. More on that below.


Back in 1971 the question was which funding agencies would become CGIAR members, and whether CIP would join the CGIAR (which it did in 1973).

Throughout 1971, Sawyer negotiated with the UK’s ODA to support CIP. But with the pending establishment of the CGIAR, ODA officials were uncertain whether to join that multilateral funding initiative or continue with the current bilateral funding model.

Decisions were, in the main, delayed. But one important decision did affect me directly. The ODA gave me a personal grant in September 1971 to remain in Birmingham until funding to CIP could be resolved. I therefore registered for a PhD on potatoes under Jack Hawkes’ supervision, and spent the next 15 months working on ideas I hoped to pursue further once I could get my hands on potatoes in the Andes, so to speak.

With Jack Hawkes in the potato field genebank at Huancayo, central Peru (3100 m above sea level) in early 1974.

In the event, the ODA provided £130,000 directly to CIP between 1973 and 1975 (= £1.858 million today), which funded, among other things, development of the center’s potato genebank, germplasm collecting missions around Peru, and associated research, as well as my position at the center.


Arriving in Peru was an ambition fulfilled, and working at a young center like CIP was a dream come true, even though, at just 24, I was somewhat wet behind the ears.

However, there were some great colleagues who taught me the ropes, and were important mentors then and throughout my career. I learnt a lot about working in a team, and about people management, very useful in later years as I moved up the management ladder.

For the first three years, my work was supervised and generously supported by an American geneticist, Dr Roger Rowe (right, with his wife Norma) who joined CIP on 1 May 1973 as head of the Breeding and Genetics Department. I owe a great deal to Roger who has remained a good friend all these years.

Always leading from the front, and never shy of making the tough decisions, Roger went on to fill senior management positions at several CGIAR centers. As a former colleague once commented to me, “Roger was the best Director General the CGIAR never had.” I couldn’t agree more.

When I joined CIP’s Regional Research group in 1976 and moved to Costa Rica, my new boss was Ken Brown (left). Ken had been working as a cotton physiologist in Pakistan for the Cotton Research Corporation, although he had previously worked in several African countries.

Ken never micromanaged his staff, was always there to help set priorities and give guidance. In those aspects of people management, I learned a lot from Ken, and he certainly earned my gratitude.

Aside from my work on potato genetic resources (and completing my PhD in 1975), I enjoyed the work on bacterial wilt and setting up a regional program, PRECODEPA as part of my Regional Research activities.

Jim Bryan (right, with Costarrican assistant Jorge Aguilar) was my closest friend at CIP. A native of Idaho, Jim was CIP’s seed production specialist. Down to earth and pragmatic, Jim taught me the importance of clean potato seed and seed production systems. He came to work with me in Costa Rica during 1979/80 and together we worked on a successful project (with the Costarrican Ministry of Agriculture) for the rapid multiplication of seed potatoes.

But by the end of 1980, I was looking for a new challenge when one came to my attention back home in the UK.


In April 1981, I joined the University of Birmingham as a Lecturer in the Department of Plant Biology (as the Department of Botany had been renamed since I graduated).

I have mixed feelings about that decade. Enthusiastic for the first few years, I became increasingly disenchanted with academic life. I enjoyed teaching genetic resources conservation to MSc students from many different countries, and particularly supervision of graduate students. I also kept a research link on true potato seed (TPS) with CIP, and around 1988 participated in a three-week review of a Swiss-funded seed production project at four locations in Peru.

With members of the project review team, with team leader Carlos Valverde on the right. Cesar Vittorelli, our CIP liaison is in the middle. I don’t remember the names of the two other team members, a Peruvian agronomist, on my right, and a Swiss economist between Vittorelli and Valverde.

But universities were under pressure from the Tory government of Margaret Thatcher. It was becoming a numbers, performance-driven game. And even though the prospects of promotion to Senior Lecturer were promising (I was already on the SL pay scale), by 1991 I was ready for a change.


And so I successfully applied for the position of Head of the Genetic Resources Center at IRRI, and once again working under the CGIAR umbrella. I moved to the Philippines in July, and stayed there for the next 19 years until retiring at the end of April 2010.

I was much happier at IRRI than Birmingham, although there were a number of challenges to face: both professional and personal such as raising two daughters in the Philippines (they were 13 and 9 when we moved to IRRI) and schooling at the International School Manila.

Whereas I’d joined CIP at the beginning of its institutional journey in 1973, IRRI already had a 30 year history in 1991. It was beginning to show its age, and much of the infrastructure built in the early 1960s had not fared well in the tropical climate of Los Baños and was in dire need of refurbishment.

A new Director General, Dr Klaus Lampe (right) from Germany was appointed in 1988 with a mandate to rejuvenate the institute before it slipped into terminal decline. That meant ‘asking’ many long-term staff to move on and make way for a cohort of new and younger staff. I was part of that recruitment drive. But turning around an institute with entrenched perspectives was no mean feat.


With responsibility for the world’s largest and most important rice genebank, and interacting with genebank colleagues at all the other centers, I took on the chair of the Inter-Center Working Group when we met in Ethiopia in January 1993, and in subsequent years took a major role in setting up the System-wide Genetic Resources Program (SGRP). This was a forerunner—and a successful one at that—of the programmatic approach adopted by the CGIAR centers.

The Swiss-funded project to collect and conserve rice varieties from >20 countries, and the innovative and pioneer research about on-farm conservation were highlights of the 1990s. As was the research, in collaboration with my old colleagues at Birmingham, on the use of molecular markers to study and conserve germplasm. A first for the CGIAR centers. Indeed a first for any crop.

Helping my genebank staff grow in their positions, and seeing them promoted gave me great satisfaction. I’d inherited a staff that essentially did what they were told to do. With encouragement from me they took on greater responsibility—and accountability—for various genebank operations, and their enthusiastic involvement allowed me to make the necessary changes to how the genebank was managed, and putting it at the forefront of CGIAR genebanks, a position it retains today.

My closest friend and colleague at IRRI was fellow Brit and crop modeller, Dr John Sheehy (right). John joined the institute in 1995, and I was chair of his appointment committee. Within a short time of meeting John for the first time, I recognized someone with a keen intellect, who was not constrained by a long-term rice perspective, and who would, I believed, bring some exceptional scientific skills and thinking to the institute.

Among his achievements were a concept for C4 rice, and persuading the Bill and Melinda Gates Foundation to back a worldwide consortium (now administered from the University of Oxford) of some of the best scientists working on photosynthesis to make this concept a reality.

By May 2001, however, change was in the air. I was asked to leave the Genetic Resources Center (and research) and join IRRI’s senior management team as Director for Program Planning and Communications, to reconnect the institute with its funding donors, and develop a strategy to increase financial support. I also took IT Services, the Library and Documentation Services, Communication and Publication Services, and the Development Office under my wing.

IRRI’s reputation with its donors was at rock bottom. Even the Director General, Ron Cantrell, wasn’t sure what IRRI’s financial and reporting commitments were.

We turned this around within six months, and quickly re-established IRRI as a reliable partner under the CGIAR. By the time I left IRRI in 2010, my office had helped the institute increase its budget to US$60 million p.a.


This increased emphasis on funding was important as, by the end of the 1990s, several donors were raising concerns about the focus of the centers and how they should be supported. Furthermore, a number of external factors like the Convention on Biological Diversity (CBD, agreed by 150 countries in 1992), the growing consensus on the threat of climate change, the adoption of the UN Millennium Development Goals (MDGs, and subsequent Sustainable Development Goals or SDGs) meant that the 15 CGIAR centers as they had become could not continue with ‘business as usual’.

Until the end of the 1990s, each center had followed its own research agenda. But it became increasingly clear that they would have to cooperate better with each other and with the national programs. And funding was being directed at specific donor-led interests.

There is no doubt that investment in the CGIAR over 50 years has brought about great benefits, economically and in humanitarian ways. Investment in crop genetic improvement has been the mainstay of the CGIAR, and although research on natural resources management (NRM, such as soils and water) has been beneficial at local levels, it has not had the widespread impact that genetic improvement has.

The impact of the CGIAR is well-documented. Take this 2010 paper for example. Click on the image for more information.

My good friend from the University of Minnesota, Professor Phil Pardey and two colleagues have calculated the economic benefits of CGIAR to be worth about 10 times the cost. Impressive. Click on the image below for more information.

I have watched a couple of decades of CGIAR navel gazing as the system has tried to ‘discover’ the best modus operandi to support national programs and the billions of farmers and consumers who depend on its research outputs.

There’s no doubt these changes have increased bureaucracy across the CGIAR. One early development was the introduction of 3-year rolling Medium Term Plans with performance targets (always difficult in agricultural and biological research), which led to perverse incentives as many centers set unambitious targets that would attract high scores and therefore guarantee continued donor support.

I did not favor that approach (supported by my DG), encouraging my colleagues to be more ambitious and realistic in their planning. But it did result in conflict with an accountant in the World Bank – a ‘bean counter’ – who had been assigned to review how the centers met their targets each year. I don’t remember his name. We had endless arguments because, it seemed to me, he simply didn’t understand the nature of research and was only interested if a particular target had been met 100%. Much as I tried to explain that reaching 75% or perhaps lower could also mean significant impact at the user level, with positive outcomes, he would not accept this point of view. 100% or nothing! What a narrow perspective.

A former colleague in the CGIAR Independent Evaluation Arrangement office in Rome and a colleague have written an excellent evaluation of this performance management exercise, warts and all. Click on the image below to access a PDF copy.

Now we have OneCGIAR that is attempting to make the system function as a whole. Very laudable, and focusing on these five highly relevant research initiatives. Click on the image below for more information.

What I’m not sure about are the levels of management that the new structure entails: global directors, regional directors, program or initiative leaders, center directors (some taking on more than one role). Who reports to whom? It seems overly complicated to my simple mind. And there is certainly less emphasis on the centers themselves – despite these being the beating heart of the system. It’s not bureaucrats (for all their fancy slogans and the like) who bring about impacts. It’s the hard-working scientists and support staff in the centers.


Nevertheless, looking back on 50 years, I feel privileged to have worked in the CGIAR. I didn’t breed a variety of rice, wheat, or potatoes that were grown over millions of hectares. I didn’t help solve a water crisis in agriculture. But I did make sure that the genetic resources of potato and rice that underpin future developments in those crops were safe, and ready to be used by breeders whenever. I also helped IRRI get back on its feet, so to speak, and to survive.

And along the way, I did make some interesting contributions to science, some of which are still being cited more than four decades later.

I’m more than grateful for the many opportunities I’ve been afforded.


 

Is it really five decades?

years ago today (Friday 17 December 1971) I received my MSc degree in Conservation and Utilization of Plant Genetic Resources from the University of Birmingham. Half a century!

With my dissertation supervisor Dr (later Professor) Trevor Williams, who became the first Director General of the International Board for Plant Genetic Resources (now Bioversity International).

I hadn’t planned to be at the graduation (known as a congregation in UK universities). Why? I had expected to be in Peru for almost three months already. I was set to join the International Potato Center (CIP) (which has just celebrated its 50th anniversary) as an Associate Taxonomist after graduation, but didn’t actually get fly out to Lima until January 1973. Funding for my position from the British government took longer to finalize than had been envisaged. In the meantime, I’d registered for a PhD on the evolution of Andean potato varieties under Professor Jack Hawkes, a world-renowned potato and genetic resources expert.

So let’s see how everything started and progressed.


1970s – potatoes
Having graduated from the University of Southampton in July 1970 (with a BSc degree in Environmental Botany and Geography), I joined the Department of Botany at Birmingham (where Jack Hawkes was head of department) in September that year to begin the one year MSc course, the start of a 39 year career in the UK and three other countries: Peru, Costa Rica, and the Philippines. I took early retirement in 2010 (aged 61) and returned to the UK.

Back in December 1971 I was just relieved to have completed the demanding MSc course. I reckon we studied as hard during that one year as during a three year undergraduate science degree. Looking back on the graduation day itself, I had no inkling that 10 years later I would be back in Birmingham contributing to that very same course as Lecturer in Plant Biology. Anyway, I’m getting ahead of myself.

Arriving in Lima on 4 January 1973, I lived by myself until July when my fiancée Steph flew out to Peru, and join CIP as an Associate Geneticist working with the center’s germplasm collection of Andean potato varieties. She had resigned from a similar position at the Scottish Plant Breeding Station near Edinburgh where she helped conserve the Commonwealth Potato Collection.

Later that year, on 13 October, Steph and I were married in Miraflores, the coastal suburb of Lima where we rented an apartment.

At Pollería La Granja Azul restaurant, east of Lima, after we were married in Miraflores.

My own work in Peru took me all over the Andes collecting potato varieties for the CIP genebank, and conducting field work towards my PhD.

Collecting potato tubers from a farmer in the northern Department of Cajamarca in May 1974.

In May 1975, we returned to Birmingham for just six months so that I could complete the university residency requirements for my PhD, and to write and successfully defend my dissertation. The degree was conferred on 12 December.

With Professor Jack Hawkes

Returning to Lima just in time for the New Year celebrations, we spent another three months there before being posted to Turrialba, Costa Rica in Central America at the beginning of April 1976, where we resided until November 1980. The original focus of my research was adaptation of potatoes to hot, humid conditions. But I soon spent much of my time studying the damage done by bacterial wilt, caused by the pathogen Ralstonia solancearum (formerly Pseudomonas solanacearum).

Checking the level of disease in a bacterial wilt trial of potatoes in Turrialba, July 1977.

Each year I made several trips throughout Central America, to Mexico, and various countries in the Caribbean, helping to set up a collaborative research project, PRECODEPA, which outlasted my stay in the region by more than 20 years. One important component of the project was rapid multiplication systems for potato seed production for which my Lima-based colleague, Jim Bryan, joined me in Costa Rica for one year in 1979.

My two research assistants (in blue lab-coats), Moises Pereira (L) and Jorge Aguilar (R) demonstrating leaf cuttings to a group of potato agronomists from Guatemala, Panama, the Dominican Republic, and Costa Rica, while my CIP colleague and senior seed production specialist, Jim Bryan, looks on.

There’s one very important thing I want to mention here. At the start of my career with CIP, as a young germplasm scientist, and moving to regional work in Costa Rica, I count myself extremely fortunate I was mentored through those formative years in international agricultural research by two remarkable individuals.

Roger Rowe and Ken Brown

Dr Roger Rowe joined CIP in July 1973 as head of the Breeding and Genetics Department. He was my boss (and Steph’s), and he also co-supervised my PhD research. I’ve kept in touch with Roger ever since. I’ve always appreciated the advice he gave me. And even after I moved to IRRI in 1991, our paths crossed professionally. When Roger expressed an opinion it was wise to listen.

Dr Ken Brown joined CIP in January 1976 and became Director of the Regional Research Program. He was my boss during the years I worked in Central America. He was very supportive of my work on bacterial wilt and the development of PRECODEPA. Never micro-managing his staff, I learned a lot from Ken about people and program management that stood me in good stead in the years to come.


1980s – academia
By the middle of 1980 I was beginning to get itchy feet. I couldn’t see myself staying in Costa Rica much longer, even though Steph and I enjoyed our life there. It’s such a beautiful country. Our elder daughter Hannah was born there in April 1978.

To grow professionally I needed other challenges, so asked my Director General in Lima, Richard Sawyer, about the opportunity of moving to another region, with a similar program management and research role. Sawyer decided to send me to Southeast Asia, in the Philippines, to take over from my Australian colleague Lin Harmsworth after his retirement in 1982.

However, I never got to the Philippines. Well, not for another decade. In the meantime I had been encouraged to apply for a lectureship at the University of Birmingham. In early 1981 I successfully interviewed and took up the position there in April.

Thus my international potato decade came to an end, as did any thoughts of continuing in international agricultural research. Or so it seemed at the time.

For three months I lodged with one of my colleagues, John Dodds, who had an apartment close to the university’s Edgbaston campus while we hunted for a house to buy. Steph and Hannah stayed with her parents in Southend on Sea (east of London), and I would travel there each weekend.

It took only a couple of weeks to find  a house that suited us, in the market town of Bromsgrove, Worcestershire, about 13 miles south of the university. We moved in during the first week of July, and kept the house for almost 40 years until we moved to Newcastle upon Tyne in the northeast of England almost 15 months ago. However we didn’t live there continually throughout that period as will become apparent below.

Our younger daughter Philippa was born in Bromsgrove in May 1982. How does the saying go? New house, new baby!

With Brian when we attended a Mediterranean genetic resources conference in Izmir, Turkey in April 1972. Long hair was the style back in the day.

I threw myself into academic life with enthusiasm. Most of my teaching was for the MSc genetic conservation students, some to second year undergraduates, and a shared ten-week genetic conservation module for third year undergraduates with my close friend and colleague of more than 50 years, Brian Ford-Lloyd.

I also supervised several PhD students during my time at Birmingham, and I found that role particularly satisfying. As I did tutoring undergraduate students; I tutored five or six each year over the decade. Several tutees went on to complete a PhD, two of whom became professors and were recently elected Fellows of the Royal Society.

One milestone for Brian and me was the publication, in 1986, of our introductory text on plant genetic resources, one of the first books in this field, and which sold out within 18 months. It’s still available as a digital print on demand publication from Cambridge University Press.

This was followed in 1990 by a co-edited book (with geography professor Martin Parry) about genetic resources and climate change, a pioneering text at least a decade before climate change became widely accepted. We followed up with an updated publication in 2014.

The cover of our 1990 book (L), and at the launch of the 2014 book, with Brian Ford-Lloyd in December 2013

My research interests in potatoes continued with a major project on true potato seed collaboratively with the Plant Breeding Institute in Cambridge (until Margaret Thatcher’s government sold it to the private sector) and CIP. My graduate students worked on a number of species including potatoes and legumes such as Lathyrus.

However, I fully appreciated my research limitations, and enjoyed much more the teaching and administrative work I was asked to take on. All in all, the 1980s in academia were quite satisfying. Until they weren’t. By about 1989, when Margaret Thatcher had the higher education sector firmly in her sights, I became less enthusiastic about university life.

And, in September 1990, an announcement landed in my mailbox for a senior position at the International Rice Research Institute (IRRI) in the Philippines. I applied to become head of the newly-created Genetic Resources Center (GRC, incorporating the International Rice Genebank), and joined IRRI on 1 July 1991. The rest is history.

I’ve often been asked how hard it was to resign from a tenured position at the university. Not very hard at all. Even though I was about to be promoted to Senior Lecturer. But the lure of resuming my career in the CGIAR was too great to resist.


1990s – rice genetic resources
I never expected to remain at IRRI much beyond 10 years, never mind the 19 that we actually spent there.

Klaus Lampe

I spent the first six months of my assignment at IRRI on my own. Steph and the girls did not join me until just before the New Year. We’d agreed that it would be best if I spent those first months finding my feet at IRRI. I knew that IRRI’s Director General, Dr Klaus Lampe, expected me to reorganize the genebank. And I also had the challenge of bringing together in GRC two independent units: the International Rice Germplasm Center (the genebank) and the International Network for the Genetic Evaluation of Rice (INGER). No mean feat as the INGER staff were reluctant, to say the least, to ever consider themselves part of GRC. But that’s another story.

Elsewhere in this blog I’ve written about the challenges of managing the genebank, of sorting out the data clutter I’d inherited, investigating how to improve the quality of seeds stored in the genebank, collaborating with my former colleagues at Birmingham to improve the management and use of the rice collection by using molecular markers to study genetic diversity, as well as running a five year project (funded by the Swiss government) to safeguard rice biodiversity.

I was also heavily involved with the CGIAR’s Inter-Center Working Group on Genetic Resources (ICWG-GR), attending my first meeting in January 1993 in Addis Ababa, when I was elected Chair for the next three years.

The ICWG-GR at its meeting hosted by ILRI (then ILCA) in Addis Ababa, in 1993.

In that role I oversaw the development of the System-wide Genetic Resources Program (SGRP), and visited Rome several times a year to the headquarters of the International Plant Genetic Resources Institute (IPGRI, now Bioversity International) which hosted the SGRP Secretariat.

But in early 2001 I was offered an opportunity (which I initially turned down) to advance my career in a totally different direction. I was asked to join IRRI’s senior management team in the newly-created post of Director for Program Planning and Coordination.


The 2000s – management
It must have been mid-January 2001. Sylvia, the Director General’s secretary, asked me to attend a meeting in the DG’s office just after lunch. I had no idea what to expect, and was quite surprised to find not only the DG, Dr Ron Cantrell, there but also his two deputies, Dr Willy Padolina (DDG-International Programs) and Dr Ren Wang, DDG-Research.

To cut a long story short, Cantrell asked me to leave GRC and move into a new position, as one of the institute’s directors, and take over the management of resource mobilization and donor relations, among other responsibilities (after about one year I was given line management responsibility for the Development Office [DO], the Library and Documentation Services [LDS], Communication and Publications Services [CPS], and the Information Technology Services [ITS]).

With my unit heads, L-R: me, Gene Hettel (CPS), Mila Ramos (LDS), Marco van den Berg (ITS), Duncan Macintosh (DO), and Corinta Guerta (DPPC).

In DPPC, as it became known, we established all the protocols and tracking systems for the many research projects and donor communications essential for the efficient running of the institute. I recruited a small team of five individuals, with Corinta Guerta becoming my second in command, who herself took over the running of the unit after my retirement in 2010 and became a director. Not bad for someone who’d joined IRRI three decades earlier as a research assistant in soil chemistry. We reversed the institute’s rather dire reputation for research management and reporting (at least in the donors’ eyes), helping to increase IRRI’s budget significantly over the nine years I was in charge.

With, L-R, Yeyet, Corinta, Zeny, Vel, (me), and Eric.

I’m not going to elaborate further as the details can be found in that earlier blog post. What I can say is that the time I spent as Director for Program Planning and Communications (the Coordination was dropped once I’d taken on the broader management responsibilities) were among the most satisfying professionally, and a high note on which to retire. 30 April 2010 was my last day in the office.


Since then, and once settled into happy retirement, I’ve kept myself busy by organizing two international rice research conferences (in Vietnam in 2010 and Thailand in 2014), co-edited the climate change book I referred to earlier, and been the lead on a major review of the CGIAR’s Genebank Program (in 2017). Once that review was completed, I decided I wouldn’t take on any more consultancy commitments, and I also stepped down from the editorial board of the Springer scientific journal Genetic Resources and Crop Evolution.

As I said from the outset of this post, it’s hard to imagine that this all kicked off half a century ago. I can say, without hesitation and unequivocally, that I couldn’t have hoped for a more rewarding career. Not only in the things we did and the many achievements, but the friendships forged with many people I met and worked with in more than 60 countries. It was a blast!


 

Getting the message out about genetic resources

For much of my career, I have taken a keen interest in science communication. Such that, a couple of years after I’d become IRRI’s Director for Program Planning & Coordination in 2001, I was asked to take on line management responsibility for several of IRRI’s administrative units, including the Communication and Publications Services (CPS) headed by my good friend Gene Hettel. My job changed to some degree, as did my title: Director for Program Planning & Communications.

I’ve always felt that scientists have a responsibility to explain their work to the general public in plain language. We’re fortunate here in the UK; there are several leading lights in this respect who have made their mark in the media and now represent, to a considerable extent, ‘the face of science’ nationally. None of them is shy about speaking out on matters of concern to society at large.

Sir David Attenborough (far left, above) is one of the world’s leading advocates for biodiversity conservation who also eloquently explains the threat and challenges of climate change. Professors Alice Roberts (second left, of The University of Birmingham) and Brian Cox (second right, The University of Manchester) have both made their mark in TV broadcasts in recent years, bringing fascinating programs covering a range of topics to the small screen. And then again, there’s Sir Paul Nurse (far right), Director of the Francis Crick Institute in London and former President of the Royal Society. I was particularly impressed with his Richard Dimbleby Lecture, The New Enlightenment, on the BBC in 2012 about his passion for science. It’s well worth a watch.


I would never claim to be in the same league as these illustrious scientists. However, over the years I have tried—in my small way—to raise awareness of the science area with which I am most familiar: plant genetic resources and their conservation. And in this blog, I have written extensively about some of my work on potatoes at the International Potato Center in Peru and on rice at the International Rice Research Institute in the Philippines, as well as training genetic resources scientists at the University of Birmingham.

So, when I was approached a few weeks ago to be interviewed and contribute to a podcast series, Plant Breeding Stories, I jumped at the chance.

The podcasts are hosted by Hannah Senior, Managing Director of PBS International, a world leading company in pollination control. So far, there have been eleven podcasts in two series, with mine broadcast for the first time just a couple of days ago. In this clip, Hannah explains the rationale for the series.

Just click on the image below to listen to our 35 minute conversation about genetic resources, genebanks, and their importance for plant breeding and food security. Oh, and a little about me and how I got into genetic resources work in the first place.

I hope you find the podcast interesting, and even a little bit enlightening. A transcript of the broadcast can be downloaded here. Thanks for listening.


Fifty is a mature number . . .

I came across a tweet a few days ago from the International Potato Center (CIP, based in Lima, Peru), reminding everyone that the center will celebrate its Golden Jubilee later this year. Fifty years of successfully bringing improved potato and sweet potato varieties and enhanced technologies to the world!

And that got me thinking about the achievements of international agricultural research in general over the past half century, and even a little longer. Let me expand.

CIP’s founding Director General (1971-1991) was Dr Richard Sawyer who envisioned a regional research [network] and collaboration with researchers around the world to develop new technologies and innovations to improve food security. He was my first boss. I joined CIP in January 1973 (when it was still a small institute finding its feet), and just after it had become one of the first international agricultural research centers (often referred to as IARCs) sponsored by the nascent Consultative Group on International Agricultural Research or CGIAR.

CGIAR? As Bill Gates wrote in 2019: Never heard of CGIAR? You’re not alone. It’s an organization that defies easy brand recognition . . . It’s too bad that more people don’t know about CGIAR. Their work to feed our hungry planet is as important now as it’s ever been.

The CGIAR was founded on 19 May 1971 and also celebrates its 50th anniversary this year. It was set up as an informal organization of countries, international development agencies and private foundations [1] that cooperate in underwriting a network of independent, international agricultural research institutes, and originally co-sponsored by the World Bank, the Food and Agriculture Organization (FAO), the United Nations Development Program (UNDP), and the International Fund for Agricultural Development (IFAD).

The CGIAR has undergone a series of transformations since its founding and has, in my opinion, spent far too long navel gazing over the past 30 years about what its role should be—and those of the constituent centers—and how all that research effort could or should be organized. Goodness knows what the opportunity costs (and the actual costs) of interminable consultations, meetings, and the like have been.

Despite the organizational and funding bumps (and scientific challenges, sometimes failures) in the 50 year road, the CGIAR and the IARCs it supports have been incredibly successful. The return on investment in international agricultural research (particularly with regard to plant breeding) has been impressive, not only in monetary terms, but more crucially in terms of the numbers of people who were brought out of poverty or who avoided chronic food shortages.

Let me again quote Bill Gates: No other institution has done as much to feed our world as CGIAR.


Today, there are 15 IARCs in the CGIAR network in 14 (mainly tropical or sub-tropical) countries across the globe, although two, Bioversity International in Rome and the Centro Internacional de Agricultura Tropical (CIAT) in Cali, Colombia, have recently formed an Alliance under a single Director General and Board of Trustees.

Four of them pre-date the CGIAR, but were immediately adopted in 1971 once the CGIAR was up and running.

The oldest, at 61 years, is the International Rice Research Institute (IRRI), founded in 1960 [2] in the Philippines, where I happily (and productively) spent almost 19 years from 1991 to 2010. IRRI was responsible for the Green Revolution in Asia, releasing many high-yielding, short-strawed rice varieties (perhaps the most famous of which was IR8) that were widely adopted because they out-yielded the varieties that farmers were growing in the 1960s.

The International Wheat and Maize Improvement Center (known as CIMMYT by its Spanish acronym) is located just northeast of Mexico City, and was founded in 1966. It was the institutional home for many years of that pioneer of the Green Revolution and 1970 Nobel Peace Laureate, Dr Norman Borlaug.

Two regional centers, the International Institute of Tropical Agriculture (IITA, in Ibadan, Nigeria) and CIAT, were founded in 1967 in 1970, respectively. Unlike the crop specific mandates of IRRI and CIMMYT (on rice, wheat, and maize), these two centers had a broader ecogeographic focus on a range of crop and livestock systems.

The International Centre for Research in the Semi-Arid Tropics (ICRISAT, located in Hyderabad, India) was established in 1972, and along with CIP was adopted by the CGIAR that same year.

By 1980, there were 13 centers, and five more were added by 1990. There then followed a period of consolidation. Two centers in Ethiopia and Kenya working on livestock and animal diseases merged. A banana and plantain network in France was absorbed into the genetic resources institute (IPGRI, now Bioversity International) in Rome, and in 2002 another institute, ISNAR (in The Hague, Netherlands) was shut down.

So for the past decade and a half, the CGIAR system has stabilised around 15 centers, and to quote Bill Gates once again: . . . most referred to by their own confusing acronyms . . . leaving the uninitiated feeling as if they’ve fallen into a bowl of alphabet soup.

It was a privilege to work at CIP (1973-1981) and IRRI (1991-2010), over 27 years in total. And even while I was teaching at the University of Birmingham between 1981 and 1991, I retained research links with and visited CIP, and also carried out other consultancy work with it and other centers.


Much of the early CGIAR-sponsored research was directed towards increasing crop productivity, breeding new crop varieties that yielded better than existing varieties as I mentioned above in relation to rice. And delving into the large and impressive—and genetically diverse—genebank collections that the centers had set up as a safety net to preserve heritage varieties. There was increased adoption of new varieties by farmers seeking to improve their livelihoods, and old varieties had, in many instances, been cast aside. Who could question their desire to improve their lots, to feed their families, and send their children to school with the hope and expectation that education would help bring them out of poverty and a better life than as a subsistence farmer?

Then, in the 1980s and 1990s, more attention was focused on natural resources such as soils and water, and how these could be managed sustainably. And of course, lying at the heart of everything (which I’m bound to stress, given my background in conservation and use of plant genetic resources) are the eleven center genebanks, the largest and most important network of genebanks worldwide, safely conserving more than 760,000 samples (known as genebank accessions) of cereals, grain legumes, forages, tree species, root and tuber crops, and bananas. This network is supported in part through the Crop Trust.

By the 1990s the early CGIAR model of productivity-focused research was being challenged and, as I mentioned above, research was expanding on the sustainability of natural resources. Furthermore, even the role of international centers was being questioned, whether they were needed any longer. National programs were becoming stronger and less dependent on the international centers for resources and research support, although training of agricultural research professionals remained an important partnership outcome. The centers produce what are known as international public goods, having an impact across multiple locations and sites. The sharing of breeding lines and new varieties is perhaps one of the best examples. National program research is much more site specific.

The international framework within which the centers operated was also becoming more challenging. The Convention on Biological Diversity (CBD) came into force in 1993, followed by the International Treaty on Plant Genetic Resources for Food and Agriculture adopted in 2004. These directly affected how centers could maintain their collections of genetic resources and share them globally. On the financial front there was growing concern about the long-term funding to support these collections that has now been resolved, in part, by the intervention of the Crop Trust and its grants to support the center collections in perpetuity from the Endowment Fund.

Then, in September 2000, at its Millennium Summit, the United Nations General Assembly adopted the eight Millennium Development Goals (MDGs) setting out an ambitious agenda to be reached by 2015. A review of progress made in 2015—not as much as hoped for—culminated in the adoption of 17 Sustainable Development Goals (SDGs) by UN Member States.

Clearly the adoption of the MDGs, followed by the upgraded SDGs was something that the CGIAR could not ignore, it it wanted to remain relevant. Centers quickly set about explaining how CGIAR-supported researched aligned with and contributed towards achieving these important development goals.

Research across the CGIAR system was reorganized into a series of programs and other initiatives. In its latest reincarnation, One CGIAR is a dynamic reformulation of CGIAR’s partnerships, knowledge, assets, and global presence, aiming for greater integration and impact in the face of the interdependent challenges facing today’s world . . . providing scientific innovations for food, land and water systems. Here is an example how IITA . . . has participated in the unfolding plans and is strategically positioned to contribute to the One-CGIAR agenda in sub-Saharan Africa.

I should also add that, importantly, response to climate change (and its impact on agriculture and natural resources) has been an important element of the CGIAR agenda for many years now.

I don’t wish to sound cynical, but I think the jury is still out. The CGIAR hasn’t exactly covered itself in glory in its previous attempts to reorganize. When it comes to change management, it has, in my opinion, taken its collective eye off the ball in terms of the system’s greatest assets: the actual centers and their loyal staff. A former colleague recently shared with me a piece he’d written describing the various attempts to restructure the CGIAR over the years: A solid long-term programme of change management must be put in place which addresses the required culture change needed on merging institutions with long, proud histories and staff who may have served for decades becoming deeply steeped in a given institutional culture.


So, how was research organized and funded? The two are obviously not independent one from the other.

Back in the day, centers received block grants or ‘core’ funding (often referred to as ‘unrestrictive funding’) from donor countries and agencies through the CGIAR. Being independent of one another (and the CGIAR not having any legal identity then) centers set their own research agendas, reporting annually on what had been achieved (outcomes and impact being the name of the game) and how the funding had been spent. The enthusiasm for the IARC model in the 70s and 80s was reflected in the growth of support, and the expansion of the CGIAR agenda to include new centers.

But around the mid-90s, this funding model was under threat. Donors demanded more accountability for their funds, and to influence directly the actual research that centers carried out. They did this by resorting to competitive funding for defined and time-limited project grants, which also meant more time and effort to prepare, submit, and account (scientifically and financially) for these projects than centers had been accustomed to. But it was a model that was here to stay. Unrestricted funding is now almost a thing of the past.

When I left research in 2001 to become IRRI’s Director for Program Planning and Communications (DPPC) I took on responsibility for the institute’s research project portfolio. Not what we did; that was the role of the Deputy Director General-Research. My role, among other responsibilities, was to liaise with donors and keep them happy and, in doing so, grow the institute’s budget (which we did very successfully).

When centers were solely responsible, as it were, for their research agendas, they had to accommodate project funding into their research strategic plans—their research blueprints. But it’s important to emphasise that IARC research was never (or hardly ever) science for the sake of science. It was scientific research with a purpose, aimed at real-life issues and constraints. And it had to be the right science of the highest quality. Not that this lofty goal was always achieved.

When I arrived at IRRI in July 1991, its research was organized through the notoriously difficult matrix management, which does have its conceptual appeal. The research program had two axes: programs on one axis, and the contributing scientific divisions on the other. The programs set the research agenda, and the research divisions contributed the scientific expertise. Or, as another former colleague, and head of IRRI’s Plant Pathology Division, Tom Mew explained it (and here I paraphrase): the programs choose the right science (i.e., what needs to be done) and the divisions do the science right. What I soon realised was that at CIP (back in 1973) there was a form of matrix management, with the research arranged in Research Thrusts. But IRRI’s not-altogether-successful implementation of matrix management was probably the first real attempt to employ this approach. It depends on an equal balance (and some tension) between program leaders and division heads. And it was my perception that a couple of long-serving division heads didn’t take kindly to any ‘erosion’ of their influence under matrix management and therefore did not support its implementation as enthusiastically as one might have expected. I’ll say no more.

In this diagram, I have assigned illustrative percentage values of how each research division allocated its resources (particularly staff time) to each of the rice ecosystem-focused programs.

Just a few years later, as the CGIAR navel gazing began in earnest, the research agenda was being reformulated in system-wide programs, organized in a type of matrix management (read ‘centers’ for ‘divisions’) and involving many more players outside the CGIAR as full partners in the research. I should mention that healthy and extensive research partnerships between centers and other institutions had existed even from the early days. However, external players are now much more intimately involved in determining (and implementing) the research.


Since I’ve been retired for eleven years, I’ll be interested to see—from afar—how the CGIAR and its centers fare. While I feel that both have lost their way somewhat, I still have faith that the system will eventually come good, and bring about outcomes and impacts that were the signatures of the system’s heyday. Hopefully, there are better days ahead for international agricultural research. Whether that means another half century or less remains to be seen. Getting past the next decade will be challenge enough.


[1] The Bill & Melinda Gates Foundation is now one of the largest donors to the CGIAR.

[2] The agreement between the Government of the Philippines and the Ford and Rockefeller Foundations was signed on 9 December 1959. IRRI’s Board of Trustees met for the first time on 14 April 1960 and approved the institute’s constitution an by-laws. The 1960 date is often cited as the foundation date.

 

Genebanks are the future . . . but there is a big challenge ahead

Our ability to adapt to changing climates will be determined, to a considerable extent, upon our ability to feed ourselves, to provide shelter and clothing, and for many peoples in many developing countries there will be problems in obtaining fuelwood for cooking or heating.

My close friend and former colleague Professor Brian Ford-Lloyd and I wrote that 30 years ago in the first chapter [1] of the book on climate change and genetic resources that we edited with Martin Parry.

We also wrote that to avert famine it would be necessary to raise crop yields and identify and use the sorts of genetic resources to contribute to this effort. Fortunately, these genetic resources are, to a large extent, already conserved in genebanks around the world.

In a recent post, I argued that, in the face of climate change, genebanks are the future. And while I hold to that assertion, I must also highlight a challenge that must be addressed—with greater urgency—and one that I already raised 30 years ago!

And that challenge is all about the potential impacts of climate change on genebank operations. I’m concerned about how rising temperatures and changing seasons might affect the ability of a genebank to produce good quality seeds during initial multiplication or thereafter to regenerate seed stocks.

We also have limited information how the environmental pest and plant pathogen load will change under a changing climate. That’s a particular concern for plant species that cannot be stored as seeds but are conserved in field genebanks. In this, the International Year of Plant Health, it is a particular genebank issue worthy of more attention.

Furthermore, we shouldn’t discount possible increases in genebank costs as cooling equipment works harder to maintain cold rooms at the desired temperatures of -18°C for long-term conservation (in so-called Base Collections), or just above 0°C for germplasm that is available for distribution and exchange (in Active Collections), the situation found in many genebanks.


Many (but not all) genebanks were set up in parts of the world where the crops they conserve are important, and where many originated, in so-called ‘centers of diversity’. That holds particularly for the international genebanks managed in eleven of the CGIAR centers, such as for potatoes at the International Potato Center (CIP) in Peru, beans and cassava at the International Center for Tropical Agriculture (CIAT) in Colombia, or rice at the International Rice Research Institute (IRRI) in the Philippines, to give just three examples.

But there are exceptions. CIMMYT, the International Maize and Wheat Improvement Center (located just outside Mexico City) certainly lies in the center of diversity for maize, but not wheat, which is a crop that was domesticated and evolved under domestication in the Near East and fringes of the Mediterranean. Another exception is Bioversity International, based in Rome that maintains an important collection of bananas (Musa spp.) as tissue culture samples (known as in vitro conservation) as well as samples stored frozen (or cryopreserved) at the temperature of liquid nitrogen (-196°C) in Belgium at the Katholieke Universiteit Leuven (KU Leuven).

You can find out more about the CGIAR genebanks on the Genebank Platform website.

As the network of genebanks expanded worldwide, with almost every country setting up at least one national genebank, many genebanks now hold samples of varieties and wild species from distance regions. And it does have some important implications for long-term conservation and regeneration, and exchange of germplasm.


Long-term conservation of many plant species in genebanks is possible because their seeds can be dried to a low moisture content and stored at low temperature. We refer to these seeds as orthodox, and we have a pretty good idea of how to dry them to an optimum moisture content (although research at IRRI has thrown new light on some of the critical drying processes). Provided they can be kept dry and cool, we can predict—with some confidence—how long they will survive in storage before they need to be grown again, or ‘regenerated’, to produce healthy seeds stocks.

On the other hand, the seeds of some species, many from the tropics, do not tolerate desiccation or low temperature storage. We refer to the seeds of these species as recalcitrant. There again, there is also a group of crops that cannot be stored as seeds but must be maintained, like the banana example referred to above, as tissue cultures or cryopreserved, if technically feasible; or in field genebanks because they reproduce vegetatively. The potato for example is grown from tubers, and for any variety, each tuber is genetically identical (a clone) to all the others of that variety. Although potatoes do produce seeds (often in abundance), they do not breed true. That’s why conservation of the original varieties is so important.

However, seeds do not live forever, and periodically regenerated if there are signs of declining viability. Or when seed stocks have become depleted because they have been sent to breeders and researchers around the world.


Climate change is already affecting crop productivity in some parts of the world. Increases in temperature (notably higher nighttime temperatures) are linked with a reduction of fertility in rice [2] for example. Stressed plants produce seeds of lower quality and, in wheat, have an effect on seedling vigour and potentially on yield [3].

Many (perhaps most) genebanks aim to grow their germplasm close to the genebank location, although this may not always be possible. Will the environments of genebank locations remain constant under climate change? Most certainly not. Temperatures have already risen, and are predicted to increase even further unless governments really do take concerted action to reduce our carbon footprint. While temperatures will increase, daylength will remain constant. Under climate change we will see new combinations of temperature and daylength. Response to daylength (or photoperiodism) is a key adaptive trait in many plant species. It is already a challenge to grow some genebank samples at a single location because of their wide latitudinal provenance.

Richard Ellis

Incidentally, 30 years on, it’s worthwhile to take a second look at Chapter 6 in our genetic resources and climate change book [4] by Professor Richard Ellis and colleagues at the University of Reading on the relationship between temperature and crop development and growth.

Seed quality is all important for genebank managers. Unlike farmers, however, they are less concerned about yield per se. They do need to understand the impacts of higher temperatures, drought, or submergence—and when they occur in a plant’s life cycle—on seed quality, because seed quality is a key determinant of long-term survival of seeds.

In a recent article, Richard wrote this: . . . when scientists breed new crop varieties using genebank samples as “parents”, they should include the ability to produce high-quality seed in stressful environments in the variety’s selected traits. In this way, we should be able to produce new varieties of seeds that can withstand the increasingly extreme pressures of climate change.

While a genebank might be able to regenerate its conserved germplasm closeby today, to what extent will these ‘regeneration environments’ become ‘stressful environments’ under a changing climate? What measures must a genebank take to ensure the production of the highest quality seeds? Furthermore, how will the pest and disease load change, and what impact will that have during regeneration and, perhaps more importantly, on germplasm conserved in field genebanks?

We were faced by a similar situation almost 30 years ago after I had joined IRRI. There’s no question that IRRI conserves, in its International Rice Genebank, the world’s largest and genetically most diverse collection of rice varieties and wild species.

Kameswara Rao

One important group of rice varieties, the so-called japonica rices originated in temperate zones, and it was tricky to produce high quality seeds in Los Baños (14°N). With my colleague Kameswara Rao (who received his PhD in Richard’s lab at Reading), we carefully analysed the factors affecting seed quality in the japonica varieties grown in Los Baños [5], and adapted the regeneration cycle to the most appropriate time of year. Given that water was not a limiting factor (there were irrigation ponds on the IRRI Experiment Station) we were not constrained by the changing seasons as such. This would not be possible for all genebanks where growing seasons are more differentiated, in terms of temperature and water availability.


I did look into the possibility of growing the japonica (and other ‘difficult’ varieties) at other sites, even outside the Philippines. What seemed, at the outset, as a logical solution to a challenging problem, became a logistical nightmare.

I was concerned that the International Rice Genebank could ‘lose’ control of the management of germplasm samples in the field unless genebank staff were assigned to oversee that work, even in another country. Afterall, the reputation of the genebank lies in its ability to safely conserve germplasm over the long-term and safely distribute seeds, conditions I was not prepared to compromise.

There were also various plant quarantine issues, seemingly insurmountable. Plant quarantine personnel are, by outlook, a conservative bunch of people. And with good reason. IRRI successfully operates its germplasm exchange (both receipt and distribution) under the auspices of the Philippines Department of Agriculture’s National Plant Quarantine Services Division (of the Bureau of Plant Industry). The institute’s Seed Health Unit carries out all the tests necessary to certify all imports and exports of rice seeds meet exacting quarantine standards. All samples received by IRRI must be tested and, if they are destined for future distribution, must be grown in the field at IRRI for further observation and certification. That would negate the advantages of producing seeds in a ‘better’ environment. Countries like the USA or Russia that cover a huge range of latitude and longitude have a network of experiment stations where germplasm could be grown, and under the same plant quarantine jurisdiction. For many countries and their genebanks, that will just not be an option.

So the challenge for genebank managers is to make sure the impact of climate change on germplasm management and exchange is part of risk management. And begin discussions (if they have not already started) to determine how inter-genebank collaboration could overcome some of the potential constraints I have raised.


[1] Jackson, M.T. & B.V. Ford-Lloyd, 1990. Plant genetic resources – a perspective. In: M. Jackson, B.V. Ford-Lloyd & M.L. Parry (eds.), Climatic Change and Plant Genetic Resources. Belhaven Press, London, pp. 1-17. PDF

[2] Shaobing Peng et al., 2004) Rice yields decline with higher night temperature from global warming.

[3] Khah, EM et al., 1989. Effects of seed ageing on growth and yield of spring wheat at different plant-population densities. Field Crops Research 20: 175-190.

[4] Ellis, RH et al., 1990. Quantitative relations between temperature and crop development and growth. In: M. Jackson, B.V. Ford-Lloyd & M.L. Parry (eds.), Climatic Change and Plant Genetic Resources. Belhaven Press, London, pp. 85-115.

[5] Kameswara Rao, N. & Jackson, MT, 1996. Seed production environment and storage longevity of japonica rices (Oryza sativa L.). Seed Science Research 6, 17-21. PDF


 

Never have genebanks been so relevant . . . or needed

There has perhaps never been a better justification for conservation of seeds in genebanks, or ex situ conservation as it’s commonly known.

The devastating bush fires that have ravaged huge swathes of eastern Australia have highlighted the fragility of environments that are being affected adversely by the consequences of climate change. It’s a wake-up call, even though some of us were commenting on this a generation ago (and more recently in 2014).

While many news stories have emotionally focused on the impact of the fires on wildlife—the injury to and death of millions of animals—very little has appeared in the media about the impacts on plant species. One story stood out, however: the extraordinary measures that firefighters took to protect the only natural stand of ancient Wollemi pines at a secret location in the Blue Mountains west of Sydney.

In another story I came across, there are concerns that a wild species of sorghum native to East Gippsland in southeast Australia may now be headed towards extinction as fires swept across its habitats. Only time will tell whether this particular species has survived.

Bush fires are not uncommon in Australia and many other parts of the world. Vegetation is, however, quite resilient and, given time, often recovers to a semblance of what was there before fires ravaged the landscape, although the balance of species may be disrupted for a few years.

Clearly nature is under threat. Indeed, in an article in The Guardian on 20 January 2020 the acting executive secretary of the UN Convention on Biological Diversity, Elizabeth Maruma Mrema, is quoted as imploring ‘governments to ensure 2020 is not just another “year of conferences” on the ongoing ecological destruction of the planet, urging countries to take definitive action on deforestation, pollution and the climate crisis.’

Catastrophic fires, and other effects of environmental degradation and climate change, vividly illustrate the necessity of having a dual conservation strategy, backing up conservation in nature, or in situ conservation, with conservation of seeds in genebanks, where appropriate. It’s clear that relying in situ conservation alone is too high a risk to take.

About 25 years ago, while I was leading the genetic conservation program at the International Rice Research Institute (IRRI) in the Philippines, and conserving the world’s largest and most diverse collection of rice varieties and wild species in the International Rice Genebank, vocal lobby groups were pressing hard in several international forums and the media to redirect conservation away from genebanks (they were often referred to as ‘gene morgues’) towards in situ conservation, in nature for wild species or on-farm for cultivated varieties.

The criticism of many genebanks, including some of those managed at centers of the Consultative Group for International Agricultural Research or CGIAR, was not unwarranted. Insufficient attention was given to applying internationally-agreed genebank standards. This was not entirely the fault of genebank managers, both inside and outside the CGIAR. They were often starved of funds, living hand to mouth, year to year as it were, and expected to manage a long-term conservation commitment on inadequate annual budgets.

Standards in the eleven CGIAR genebanks have been raised through the Genebank Platform, supported by the Crop Trust. Between them, not only do the CGIAR genebanks conserve some of the most world’s important collections of genetic resources of cereals, legumes, and roots and tubers, but these collections have been studied in depth to find useful traits, and the volume of germplasm shared annually for research and production is impressive. Just take a look at the data for the years 2012-2018.

Other international efforts like the Crop Wild Relatives Project (supported by the Government of Norway), and managed by the Crop Trust with the Royal Botanic Gardens, Kew have focused attention on the importance of conserving the wild relatives of crop plants as they are often genetically endowed with traits not found in their domesticated derivatives. My own experience studying nematode resistance in wild potatoes from Bolivia for example illustrated the importance of wild species for crop improvement.

Today, we have a whole new suite of tools to study the crop varieties and wild species conserved in genebanks around the world. As the genome of each new species is sequenced, another door is opened on the genetic diversity of nature, how it’s organized, and how genes control different traits. Indeed an argument has recently been made to genotype all samples (or accessions in the ‘official’ parlance) in a genebank. Certainly this is an approach that was merely a dream only two decades ago.

I still argue, however, that in tandem with the molecular analysis of crop diversity, there must be an in-depth evaluation of how different varieties behave in real environments. In joint research between former colleagues of mine at The University of Birmingham (Professors Brian Ford-Lloyd and John Newbury and Dr Parminder Virk) and myself at IRRI in the 1990s, we demonstrated the predictive value of molecular markers for several quantitative characters associated with crop productivity. Somewhat derided at the time, association genetics has become an important approach to study crop diversity.

I’ve been publishing about climate change and the value of plant genetic resources for over 30 years, beginning when there was far more skepticism about this phenomenon than today. At a conference on Crop Networks, held in Wageningen in the Netherlands in December 1990, I presented a paper outlining the need for collaborative research to study germplasm collections in the face of climate change.

And in that paper I argued that widespread testing in replicated field trials would be necessary to identify useful germplasm. With the addition nowadays of molecular markers and genome-wide detailed information for many species, there is now a much better opportunity to evaluate germplasm to identify gene sources that can help protect crops against the worst ravages of climate change and maintain agricultural productivity. Even though political leaders like Donald Trump and Scott Morrison continue to deny climate change (or merely pay lip service), society as a whole cannot ignore the issue. Afterall, for a predicted global population of 9.8 billion by 2050, most of whom will not produce their own food, continued agricultural productivity is an absolute necessity. The conservation, evaluation, and use of plant genetic resources stored in the world’s genebanks is a key component of achieving that goal.

Genebanks are the future! However, in a follow-up story, I write that genebanks still face a major challenge under a changing climate. Read more here.

Have [botany] degree . . . will travel (#iamabotanist)

One thing I had known from a young boy was that I wanted to see the world; and work overseas if possible. Following somewhat in the footsteps of my parents, Fred and Lilian Jackson.

Who would have thought that a degree in botany would open up so many opportunities?

Come 1 January, it will be 47 years since I joined the staff of the International Potato Center (CIP) in Lima, Peru, and the start of a 37 year career in the plant sciences: as a researcher, teacher, and manager. Where has the time flown?

After eight years in South and Central America, I spent a decade on the faculty of the School of Biological Sciences at the University of Birmingham. Then, in 1991, I headed to Southeast Asia, spending almost 19 years at the International Rice Research Institute (IRRI) in the Philippines, before retiring in 2010.

However, I have to admit that Lady Luck has often been on my side, because my academic career didn’t get off to an auspicious start and almost thwarted my ambitions.

While I enjoyed my BSc degree course at the University of Southampton (in environmental botany and geography) I was frankly not a very talented nor particularly industrious student. I just didn’t know how to study, and always came up short in exams. And, on reflection, I guess I burnt the candle more at one end than the other.

It would hard to underestimate just how disappointed I was, in June 1970, to learn I’d been awarded a Lower Second Class (2ii) degree, not the Upper Second (2i) that I aspired to. I could have kicked myself. Why had I not applied myself better?

But redemption was on the horizon.

Prof. Jack Hawkes

In February 1970, Professor Jack Hawkes (head of the Department of Botany at the University of Birmingham) interviewed me for a place on the MSc Course Conservation and Utilization of Plant Genetic Resources, that had opened its doors to the first cohort some months earlier. I must have made a favorable impression, because he offered me a place for September.

But how was I to support myself for the one year course, and pay the tuition  fees? I didn’t have any private means and, in 1970, the Course had not yet been recognized for designated studentships by any of the UK’s research councils.

Through the summer months I was on tenterhooks, and with the end of August approaching, started seriously to think about finding a job instead.

Then salvation arrived in the form of a phone call from Professor Hawkes, that the university had awarded me a modest studentship to cover living expenses and accommodation (about £5 a week, or equivalent to about £66 in today’s money) as well as paying the tuition fees. I could hardly believe the good news.

Prof. Trevor Williams

By the middle of September I joined four other students (from Venezuela, Pakistan, Turkey, and Nigeria) to learn all about the importance of crop plant diversity. Over the next year, discovered my academic mojo. I completed my MSc dissertation on lentils under Course Tutor (and future Director General of the International Board for Plant Genetic Resources, now Bioversity International), Professor Trevor Williams.

Starting a career in international agricultural research
Just before Christmas 1970, Hawkes traveled to Peru and Bolivia to collect wild potatoes. On his return in February 1971, he dangled the possibility of a one year position in Peru (somewhere I had always wanted to visit) to manage the potato germplasm collection at CIP while a Peruvian researcher came to Birmingham for training on the MSc Course. Then, in mid-summer, CIP’s Director General, Dr. Richard Sawyer, visited Birmingham and confirmed the position at CIP beginning in September 1971.

But things didn’t exactly go to plan. Funding from the British government’s overseas development aid budget to support my position at CIP didn’t materialise until January 1973. So, during the intervening 15 months, I began a PhD research project on potatoes (under the supervision of Professor Hawkes), continuing with that particular project as part of my overall duties once I’d joined CIP in Lima, under the co-supervision of Dr. Roger Rowe. That work took me all over the Andes—by road, on horseback, and on foot—collecting native varieties of potatoes for the CIP genebank.

Screening potatoes in Turrialba, Costa Rica for resistance to bacterial wilt.

After successfully completing my PhD in December 1975, I transferred to CIP’s Outreach Program in Central America, moved to Costa Rica for the next 4½ years, and began research on potato diseases, adaptation of potatoes to warm climates, and seed production. This was quite a change from my thesis research, but I acquired valuable experience about many different aspects of potato production. I learnt to grow a crop of potatoes!

But this posting was not just about research. After a year, my regional leader (based in Mexico) moved to the USA to pursue his PhD, and CIP asked me to take over as regional research leader. Thus I began to develop an interest in and (if I might be permitted to say) a flair for research management. In this role I traveled extensively throughout Central America and Mexico, and the Caribbean Islands, and helped to found and establish one of the most enduring and successful research partnerships between national research programs and any international agricultural research institute: PRECODEPA.

Then, just as I was thinking about a move to CIP’s regional office in the Philippines (for Southeast Asia), an entirely different opportunity opened up, and we moved back to the UK.

Back to Birmingham
In January 1981 I successfully applied for a Lectureship in my old department (now named the Department of Plant Biology) at Birmingham. I said goodbye to CIP in March 1981, and embarked on the next stage of my career: teaching botany.

The lectureship had been created to ensure continuity of teaching in various aspects of the conservation and use of plant genetic resources (and other topics) after Professor Hawkes’ retirement in September 1982. I assumed his particular teaching load, in crop plant evolution and germplasm collecting on the MSc Course, and flowering plant taxonomy to second year undergraduates, as well as developing other courses at both undergraduate and graduate level.

In addition to my continuing research interest on potatoes I assembled a large collection of Lathyrus species and one PhD student from Malaysia made an excellent study of species relationships of the one cultivated species, the grasspea, L. sativus. I successfully supervised (or co-supervised) the theses of nine other PhD students (and at least a couple of dozen MSc students) during the decade I spent at Birmingham.

I generally enjoyed the teaching and interaction with students more than research. Having struggled as an undergraduate myself, I think I could empathise with students who found themselves in the same boat, so-to-speak. I took my tutor/tutee responsibilities very seriously. In fact, I did and still believe that providing appropriate and timely tutorial advice to undergraduates was one of the more important roles I had. My door was always open for tutees to drop by, to discuss any issues in addition to the more formal meetings we had on a fortnightly basis when we’d discuss some work they had prepared for me, and I gave feedback.

While I appreciate that university staff are under increasing pressures to perform nowadays (more research, more grants, more papers) I just cannot accept that many consider their tutor responsibilities so relatively unimportant, assigning just an hour or so a week (or less) when they make themselves accessible by their tutees.

The 1980s were a turbulent time in the UK. Politics were dominated by the Tories under Margaret Thatcher. And government policies came to significantly affect the higher education sector. By the end of the decade I was feeling rather disillusioned by university life, and although I was pretty confident of promotion to Senior Lecturer, I also knew that if any other opportunity came along, I would look at it seriously.

And in September 1990 just such an opportunity did come along, in the form of an announcement that IRRI was recruiting a head for the newly-created Genetic Resources Center.

Dr. Klaus Lampe

A return to international agriculture
It was early January 1991, and I was on a delayed flight to Hong Kong on my way to the Philippines for an interview. Arriving in Los Baños around 1 am (rather than 3 pm the previous afternoon), I had just a few hours sleep before a breakfast meeting with the Director General, Dr. Klaus Lampe and his two deputies. Severely jet-lagged, I guess I more or less sleep-walked through the next three days of interviews, as well as delivering a seminar. And the outcome? IRRI offered me the position at the end of January, and I moved to the Philippines on 1 July remaining there for almost 19 years.

For the first ten years, management of the International Rice Genebank (the world’s largest collection of rice varieties and wild species) was my main priority. I have written about many aspects of running a genebank in this blog, as well as discussing the dual roles of genebank management and scientific research. So I won’t repeat that here. Making sure the rice germplasm was safe and conserved in the genebank to the highest standards were the focus of my early efforts. We looked at better ways of growing diverse varieties in the single environment of IRRI’s Experiment Station, and overhauled the genebank data management system. We also spent time studying the diversity of rice varieties and wild species, eventually using a whole array of molecular markers and, in the process, establishing excellent collaboration with former colleagues at the University of Birmingham and the John Innes Centre in Norwich, UK.

Dr. Ron Cantrell

Then, one day in early 2001, IRRI’s Director General, Dr. Ron Cantrell, called me to his office, asking me to give up genebanking and join the institute’s senior management team as Director for Program Planning and Communications. As I said earlier, I really enjoyed management, but wasn’t sure I wanted to leave research (and genetic resources) behind altogether. But after some serious soul-searching, I did move across in May 2001 and remained in that position until my retirement in April 2010.

Even in that position, my background and experience in the plant sciences was invaluable. All research project proposals for example passed through my office for review and submission to various donors for funding. I was able not only look at the feasibility of any given project in terms of its objectives and proposed outcomes within the project timeframe, I could comment on many of the specific scientific aspects and highlight any inconsistencies. Because we had a well-structured project proposal development and submission process, the quality of IRRI projects increased, as well as the number that were successfully supported. IRRI’s budget increased to new levels, and confidence in the institute’s research strategy and agenda gained increased confidence among its donors.

What a good decision I made all those years ago to study botany. I achieved that early ambition to travel all over the world (>60 countries in connection with my work) in North and South America, Europe, Africa, Asia, and Australia. But the study (and use) of plants gave me so much more. I used the knowledge and experience gained to help transform lives of some of the poorest farmers and their families, by contributing to efforts to grow better yielding crops, more resilient to climate change, and resistant to diseases.

I’m sure that a degree in botany would be the last in many people’s minds as leading to so many opportunities such as I enjoyed. Knowing that opportunities are out there is one thing. Seizing those opportunities is quite another. And I seized them with both hands. I never looked back.

I should also mention that I also ascribe some of my success to having had excellent mentors—many mentioned in this piece—throughout my career to whom I could turn for advice. Thank you!


If you are interested, a list of my scientific output (papers, book, book chapters, conference presentations and the like) can be seen here.


 

Are you plant blind?

In our 1986 book Plant Genetic Resources: An Introduction to their Conservation and Use, my former colleague and friend of almost 50 years, Professor Brian Ford-Lloyd and I wrote (on page 1):

To most people the word ‘conservation’ conjures up visions of lovable cuddly animals like giant pandas on the verge of extinction. Or it refers to the prevention of the mass slaughter of endangered whale species, under threat because of human’s greed and short-sightedness. Comparatively few  however, are moved to action or financial contribution by the idea of economically important plant genes disappearing from the face of the earth. . . . But plant genetic resources make little impression on the heart even though their disappearance could herald famine on a greater scale than ever seen before, leading to ultimate world-wide disaster.

Hyperbole? Perhaps. Through our 1986 lens that did not seem far-fetched. And while it’s fair to say that the situation today is better in some respects than Brian and I predicted, there are new threats and challenges, such as global warming.

The world needs genetic diversity to breed varieties of crops that will keep agricultural systems sustainable, allow production of crops in drought-prone regions, where temperatures are increasing, and where new races of diseases threaten even the very existence of agriculture for some crops.

That genetic diversity comes from the hundreds of thousands of crop varieties that farmers have nurtured for generations since the birth of agriculture millennia ago, or in closely related wild species. After all, all crops were once wild species before domestication.

These are the genetic resources that must be safely guarded for future generations.

The work of the International Board for Plant Genetic Resources (IBPGR), then the International Plant Genetic Resources Institute (IPGRI), was pivotal in coordinating and supporting genetic resources programs worldwide, in the 1970s, 80s and 90s.

Then a new and very important player came along. Over the past decade and half the Crop Trust, has provided long-term support to some of the world’s most important genebanks.

International mechanisms have been put in place to support collection, conservation, study, and use of plant genetic resources. Yet, much remains to be done. And ‘Joe Public’ is probably still as unaware of the importance of the crop varieties and their wild relatives (and perhaps plants in general) as we feared more than three decades ago.


Wildlife programs on TV are mostly about animals, apart from the weekly gardening programs, and some such as David Attenborough’s The Private Life of Plants (broadcast in 1995). Animal programs attract attention for precisely the reasons that Brian and I highlighted in 1986. A couple of nights ago for instance I watched a fascinating, hour-long program on the BBC about hippos in the Okavango Delta of Botswana. Wonderful footage revealing never-before-seen hippo behaviour and ecology.

When it comes to genetic resources, animals don’t do so badly either, at least here in the UK. We get an almost weekly item about the importance of rare breeds of livestock and their imperiled status during the BBC’s flagship Countryfile program on Sunday evenings presented by farmer Adam Henson, whose father Joe helped set up the Rare Breeds Survival Trust (RBST) in 1973. The RBST has been pivotal in rescuing many breeds from the brink of extinction. Just last night (28 July) Adam proudly showed an Albion calf born the day before on his farm in the Cotswolds. The Albion breed is one of the rarest in the UK.

Photo credit: the RBST

But that says very little about all the endangered livestock breeds around the world that are fortunately the focus of the work of the International Livestock Research Institute (ILRI).

Ankole cattle from southwestern Uganda (photo credit: ILRI/Stevie Mann).

However . . .

When was the last time—if ever—you watched a TV documentary about the rare (so-called ‘heritage’) varieties of the food plants on which we depend, or their closest wild species relatives, such as the barleys of Ethiopia or the potatoes of the South American Andes, for instance. And would you really care if you hadn’t?

Are you even aware that the barleys that we use for brewing originally came from Ethiopia and the Middle East? Or that the Spanish brought the potato back to Europe in the 16th century from Peru? What about your daily cups of tea or coffee?

These are just some of the myriad of fascinating histories of our food crops. Today many of these staples are often more important in agriculture in parts of the world far distant from the regions where they originated and were first domesticated.

In the UK, enthusiasts will be aware of heritage vegetable varieties, and the many varieties of fruits like apples that have disappeared from commercial orchards, but are still grown at places like Berrington Hall in Herefordshire.

Take a look at this article by freelance communicator Jeremy Cherfas about the origins of the food we eat. Jeremy has written a lot about genetic resources (and many other aspects of sustainable agriculture). As he says, you may discover a few surprises.

In centers of domestication, the diversity of the crops grown by farmers is impressive indeed. It’s wonderful. It’s BEAUTIFUL! The domestication of crops and their use by farmers worldwide is the story of civilization.

Here are just a few examples from beans, maize, cocoa, cucurbits, wheat, and lentil.

And take a look at the video below.

Who could fail to be impressed by such a range of shapes and colors of these varieties? And these varieties (and wild species) contain all the genes we need to keep crops productive.

Plant genetic resources: food for the stomach, food for the soul.


My own work since 1971 concerned the conservation and use of potatoes and rice (and some legume species as side projects).

In Peru, I came to learn just how important potatoes are for communities that live at altitude in the Andes. Could the Inca empire have grown and dominated the region had there been no potatoes (and maize)?

Machu Picchu

And there are so many wild species of potatoes that can be found from the southern USA to the south of Chile and east into the plains of Brazil. The International Potato Center (CIP) in Lima (where I worked for over eight years) has the world’s largest genebank of potato varieties. Important wild species collections are maintained there, as well as in Scotland at the Commonwealth Potato Collection (maintained by the James Hutton Institute), and the USA, at the NRSP-6 Potato Genebank in Sturgeon Bay, WI.

Rice is the food of Asia. There are thousands upon thousands of varieties that grow in standing water, or on sloping uplands, or in areas that flood and so have evolved to elongate rapidly to keep pace with rising flood waters.

Here is a selection of images of rice diversity in Laos, one of the countries that we explored during the 1990s.

Would it have been possible to build the temple complex at Angkor Wat in Cambodia in the 12th century without rice? It has been estimated that upwards of one million workers were employed in its construction. That workforce needed a constant supply of staple rice, the only crop that could be grown productively in this monsoon environment.

These potato and rice examples are the tip of the genetic resources and civilization history iceberg. Think about the origins of agriculture in Turkey and the Mideast, 10,000 years ago. Remains of wheat, barley and pulses like lentil and chickpea have been found at the earliest cities in that region. And these histories are repeated all around the world.


In 1983 and 1984, BBC2 aired two series of a program called Geoffrey Smith’s World of Flowers, in which Smith (a professional gardener and broadcaster) waxed lyrical on the history of many of his favorite garden plants, and their development in cultivation: tulips from Turkey, dahlias from Mexico, lilies from North America, and many, many more.

In these programs, he talked about where and how the plants grow in the wild, when they had been collected, and by whom, and how through decades (centuries in some cases) of hybridization and selection, there are so many varieties in our gardens today. The programs attracted an audience of over 5 million apparently. And two books were also published.

I had an idea. If programs like these could be so popular, how about a series on the food plants that we eat, where they originated, how they were domesticated, and how modern varieties have been bred using these old varieties and wild species. I envisaged these programs encompassing archaeology and crop science, the rise of civilizations, completing the stories of why and which crops we depend on.

I wrote a synopsis for the programs and sent it to the producer at the BBC of the Geoffrey Smith programs, Brian Davies. I didn’t hear back for several weeks, but out of the blue, he wrote back and asking to come up to Birmingham for a further discussion. I pitched the idea to him. I had lots of photos of crop diversity and wild species, stories about the pioneers of plant genetic resources, like Vavilov, Jack Harlan, Erna Bennett, and Jack Hawkes, to name just a few. I explained how these plant stories were also stories about the development and growth of civilizations, and how this had depended on plant domestication. Stories could be told from some of the most important archaeological sites around the world.

Well, despite my enthusiasm, and the producer warming to the idea, he eventually wrote back that the BBC could not embark on such a series due to financial limitations. And that’s all I heard. Nevertheless, I still think that a series along these lines would make fascinating television. Now who would present the series (apart from myself, that is!)?

Maybe its time has come around again. From time-to-time, interesting stories appear in the media about crops and their origins, as this recent one about cocoa and vanilla in the Smithsonian Magazine illustrates.

But we need to do more to spread the plant genetic resources ‘gospel’. The stories are not only interesting, but essential for our agricultural survival.


 

Discovering Vavilov, and building a career in plant genetic resources: (3) Becoming a genebanker in the 1990s, and beyond

My decision to leave a tenured position at the University of Birmingham in June 1991 was not made lightly. I was about to be promoted to Senior Lecturer, and I’d found my ‘home’ in the Plant Genetics Research Group following the reorganization of the School of Biological Sciences a couple of years earlier.

But I wasn’t particularly happy. Towards the end of the 1980s, Margaret Thatcher’s Conservative Government had become hostile to the university sector, demanding significant changes in the way they operated before acceding to any improvements in pay and conditions. Some of the changes then forced on the university system still bedevil it to this day.

I felt as though I was treading water, trying to keep my head above the surface. I had a significant teaching load, research was ticking along, PhD and MSc students were moving through the system, but still the university demanded more. So when an announcement of a new position as Head of the Genetic Resources Center (GRC) at the International Rice Research Institute (IRRI) in the Philippines landed on my desk in September 1990, it certainly caught my interest. I discussed such a potential momentous change with Steph, and with a couple of colleagues at the university.

Nothing venture, nothing gained, I formally submitted an application to IRRI and, as they say, the rest is history. However, I never expected to spend the next 19 years in the Philippines.


Since 1971, I’d worked almost full time in various aspects of conservation and use of plant genetic resources. I’d collected potato germplasm in Peru and the Canary Islands while at Birmingham, learned the basics of potato agronomy and production, worked alongside farmers, helped train the next generation of genetic conservation specialists, and was familiar with the network of international agricultural research centers supported through the Consultative Group on International Agricultural Research or CGIAR.

What I had never done was manage a genebank or headed a department with tens of staff at all professional levels. Because the position in at IRRI involved both of these. The head would be expected to provide strategic leadership for GRC and its three component units: the International Rice Germplasm Center (IRGC), the genebank; the International Network for the Genetic Evaluation of Rice (INGER); and the Seed Health Unit (SHU). However, only the genebank would be under the day-to-day management of the GRC head. Both INGER and the SHU would be managed by project leaders, while being amalgamated into a single organizational unit, the Genetic Resources Center.

I was unable to join IRRI before 1 July 1991 due to teaching and examination commitments at the university that I was obliged to fulfill. Nevertheless, in April I represented IRRI at an important genetic resources meeting at FAO in Rome, where I first met the incoming Director General of the International Board for Plant Genetic Resources (soon to become the International Plant Genetic Resources Institute or IPGRI), Dr Geoff Hawtin, with whom I’ve retained a friendship ever since.

On arrival at IRRI, I discovered that the SHU had been removed from GRC, a wise decision in my opinion, but not driven I eventually discerned by real ‘conflict of interest’ concerns, rather internal politics. However, given that the SHU was (and is) responsible, in coordination with the Philippines plant health authorities, to monitor all imports and exports of rice seeds at IRRI, it seemed prudential to me not to be seen as both ‘gamekeeper and poacher’, to coin a phrase. After all the daily business of the IRGC and INGER was movement of healthy seeds across borders.


Klaus Lampe

My focus was on the genebank, its management and role within an institute that itself was undergoing some significant changes, 30 years after it had been founded, under its fifth Director General, Dr Klaus Lampe, who had hired me. He made it clear that the head of GRC would not only be expected to bring IRGC and INGER effectively into a single organizational unit, but also complete a ‘root and branch’ overhaul of the genebank’s operations and procedures, long overdue.

Since INGER had its own leader, an experienced rice breeder Dr DV Seshu, somewhat older than myself, I could leave the running of that network in his hands, and only concern myself with INGER within the context of the new GRC structure and personnel policies. Life was not easy. My INGER colleagues dragged their feet, and had to be ‘encouraged’ to accept the new GRC reality that reduced the freewheeling autonomy they had become accustomed to over the previous 20 years or so, on a budget of about USD1 million a year provided by the United Nations Development Program or UNDP.

When interviewing for the GRC position I had also queried why no germplasm research component had been considered as part of the job description. I made it clear that if I was considered for the position, I would expect to develop a research program on rice genetic resources. That indeed became the situation.


Once in post at IRRI, I asked lots of questions. For at least six months until the end of 1991, I made no decisions about changes in direction for the genebank until I better understood how it operated and what constraints it faced. I also had to size up the caliber of staff, and develop a plan for further staff recruitment. I did persuade IRRI management to increase resource allocation to the genebank, and we were then able to hire technical staff to support many time critical areas.

But one easy decision I did make early on was to change the name of the genebank.  As I’ve already mentioned, its name was the ‘International Rice Germplasm Center’, but it didn’t seem logical to place one center within another, IRGC in GRC. So we changed its name to the ‘International Rice Genebank’, while retaining the acronym IRGC (which was used for all accessions in the germplasm collection) to refer to International Rice Genebank Collection.

In various blog posts over the past year or so, I have written extensively about the genebank at IRRI, so I shall not repeat those details here, but provide a summary only.

I realized very quickly that each staff member had to have specific responsibilities and accountability. We needed a team of mutually-supportive professionals. In a recent email from one of my staff, he mentioned that the genebank today was reaping the harvest of the ‘seeds I’d sown’ 25 years ago. But, as I replied, one has to have good seeds to begin with. And the GRC staff were (and are) in my opinion quite exceptional.

In terms of seed management, we beefed up the procedures to regenerate and dry seeds, developed protocols for routine seed viability testing, and eliminated duplicate samples of genebank accessions that were stored in different locations, establishing an Active Collection (at +4ºC, or thereabouts) and a Base Collection (held at -18ºC). Pola de Guzman was made Genebank Manager, and Ato Reaño took responsibility for all field operations. Our aim was not only to improve the quality of seed being conserved in the genebank, but also to eliminate (in the shortest time possible) the large backlog of samples to be processed and added to the collection.

Dr Kameswara Rao (from IRRI’s sister center ICRISAT, based in Hyderabad, India) joined GRC to work on the relationship between seed quality and seed growing environment. He had received his PhD from the University of Reading, and this research had started as a collaboration with Professor Richard Ellis there. Rao’s work led to some significant changes to our seed production protocols.

Since I retired, I have been impressed to see how research on seed physiology and conservation, led by Dr Fiona Hay (now at Aarhus University in Denmark) has moved on yet again. Take a look at this story I posted in 2015.

Screen house space for the valuable wild species collection was doubled, and Soccie Almazan appointed as  wild species curator.

One of the most critical issues I had to address was data management, which was in quite a chaotic state, with data on the Asian rice samples (known as Oryza sativa), the African rices (O. glaberrima), and the remaining 20+ wild species managed in separate databases that could not ‘talk’ to each another. We needed a unified data system, handling all aspects of genebank management, germplasm regeneration, characterization and evaluation, and germplasm exchange. We spent about three years building that system, the International Rice Genebank Collection Information System (IRGCIS). It was complicated because data had been coded differently for the two cultivated and wild species, that I have written about here. That’s a genebank lesson that needs to be better appreciated in the genebank community. My colleagues Adel Alcantara, Vanji Guevarra, and Myrna Oliva did a splendid job, which was methodical and thorough.

In 1995 we released the first edition of a genebank operations manual for the International Rice Genebank, something that other genebanks have only recently got round to.

Our germplasm research focused on four areas:

  • seed conservation (with Richard Ellis at the University of Reading, among others);
  • the use of molecular markers to better manage and use the rice collection (with colleagues at the University of Birmingham and the John Innes Centre in Norwich);
  • biosystematics of rice, concentrating on the closest wild relative species (led by Dr Bao-Rong Lu and supported by Yvette Naredo and the late Amy Juliano);
  • on farm conservation – a project led by French geneticist Dr Jean-Louis Pham and social anthropologists Dr Mauricio Bellon and Steve Morin.

At the beginning of the 1990s there were no genome data to support the molecular characterization of rice. Our work with molecular markers was among use these to study a germplasm collection. The research we published on association analysis is probably the first paper that showed this relationship between markers and morphological characteristics or traits.

In 1994, I developed a 5-year project proposal for almost USD3.3 million that we submitted for support to the Swiss Development Cooperation. The three project components included:

  • germplasm exploration (165 collecting missions in 22 countries), with about half of the germplasm collected in Laos; most of the collected germplasm was duplicated at that time in the International Rice Genebank;
  • training: 48 courses or on-the-job opportunities between 1995 and 1999 in 14 countries or at IRRI in Los Baños, for more than 670 national program staff;
  • on farm conservation to:
    • to increase knowledge on farmers’ management of rice diversity, the factors that
      influence it, and its genetic implications;
    • to identify strategies to involve farmers’ managed systems in the overall conservation of
      rice genetic resources.

I was ably assisted in the day-to-day management of the project by my colleague Eves Loresto, a long-time employee at IRRI who sadly passed away a few years back.

When I joined IRRI in 1991 there were just under 79,000 rice samples in the genebank. Through the Swiss-funded project we increased the collection by more than 30%. Since I left the genebank in 2001 that number has increased to over 136,000 making it the largest collection of rice germplasm in the world.

We conducted training courses in many countries in Asia and Africa. The on-farm research was based in the Philippines, Vietnam, and eastern India. It was one of the first projects to bring together a population geneticist and a social anthropologist working side-by-side to understand how, why, and when farmers grew different rice varieties, and what incentives (if any) would induce them to continue to grow them.

The final report of this 5-year project can be read here. We released the report in 2000 on an interactive CD-ROM, including almost 1000 images taken at many of the project sites, training courses, or during germplasm exploration. However, the links in the report are not active on this blog.

During my 10 year tenure of GRC, I authored/coauthored 33 research papers on various aspects of rice genetic resources, 1 co-edited book, 14 book chapters, and 23 papers in the so-called ‘grey’ literature, as well as making 33 conference presentations. Check out all the details in this longer list, and there are links to PDF files for many of the publications.


In 1993 I was elected chair of the Inter-Center Working Group on Genetic Resources, and worked closely with Geoff Hawtin at IPGRI, and his deputy Masa Iwanaga (an old colleague from CIP), to develop the CGIAR’s System-wide Genetic Resources Program or SGRP. Under the auspices of the SGRP I organized a workshop in 1999 on the application of comparative genetics to genebank collections.

Professor John Barton

With the late John Barton, Professor of Law at Stanford University, we developed IRRI’s first policy on intellectual property rights focusing on the management, exchange and use of rice genetic resources. This was later expanded into a policy document covering all aspects of IRRI’s research.

The 1990s were a busy decade, germplasm-wise, at IRRI and in the wider genetic resources community. The Convention on Biological Diversity had come into force in 1993, and many countries were enacting their own legislation (such as Executive Order 247 in the Philippines in 1995) governing access to and use sovereign genetic resources. It’s remarkable therefore that we were able to accomplish so much collecting between 1995 and 2000, and that national programs had trust in the IRG to safely conserve duplicate samples from national collections.

Ron Cantrell

All good things come to an end, and in January 2001 I was asked by then Director General Ron Cantrell to leave GRC and become the institute’s Director for Program Planning and Coordination (that became Communications two years later as I took on line management responsibility for Communication and Publications Services, IT, and the library). On 30 April, I said ‘goodbye’ to my GRC colleagues to move to my new office across the IRRI campus, although I kept a watching brief over GRC for the next year until my successor, Dr Ruaraidh Sackville Hamilton, arrived in Los Baños.

Listen to Ruaraidh and his staff talking about the genebank.


So, after a decade with GRC I moved into IRRI’s senior management team and set about bringing a modicum of rationale to the institute’s resource mobilization initiatives, and management of its overall research project portfolio. I described here how it all started. The staff I was able to recruit were outstanding. Running DPPC was a bit like running a genebank: there were many individual processes and procedures to manage the various research projects, report back to donors, submit grant proposals and the like. Research projects were like ‘genebank accessions’ – all tied together by an efficient data management system that we built in an initiative led by Eric Clutario (seen standing on the left below next to me).

From my DPPC vantage point, it was interesting to watch Ruaraidh take GRC to the next level, adding a new cold storage room, and using bar-coding to label all seed packets, a great addition to the data management effort. With Ken McNally’s genomics research, IRRI has been at the forefront of studies to explore the diversity of genetic diversity in germplasm collections.

Last October, the International Rice Genebank was the first to receive in-perpetuity funding from the Crop Trust. I’d like to think that the significant changes we made in the 1990s to the genebank and management of rice germplasm kept IRRI ahead of the curve, and contributed to its selection for this funding.

I completed a few publications during this period, and finally retired from IRRI at the end of April 2010. Since retirement I have co-edited a second book on climate change and genetic resources, led a review of the CGIAR’s genebank program, and was honored by HM The Queen as an Officer of the British Empire (OBE) in 2012 for my work at IRRI.

So, as 2018 draws to a close, I can look back on almost 50 years involvement in the conservation and use of plant genetic resources for food and agriculture. What an interesting—and fulfilling—journey it has been.


 

 

 

 

Discovering Vavilov, and building a career in plant genetic resources: (2) Training the next generation of specialists in the 1980s

When, in the mid- to late-60s, Jack Hawkes was planning a one-year MSc course, Conservation and Utilization of Plant Genetic Resources (CUPGR), at the University of Birmingham (in the Department of Botany), Sir Otto Frankel (that doyen of the genetic resources movement) predicted that the course would probably have a lifetime of just 20 years, at most. By then, he assumed, all the persons who needed such training would have passed through the university’s doors. Job done! Well, it didn’t turn out quite that way.

The first cohort of four students graduated in September 1970, when I (and four others) arrived at the university to begin our careers in plant genetic resources. In 1989, the course celebrated its 20th anniversary. But there was still a demand, and Birmingham would continue to offer graduate training (and short course modules) in genetic resources for the next 15 or so years before dwindling applications and staff retirements made the course no longer viable.

Over its lifetime, I guess at least 500 MSc and Short Course students from more than 100 countries received their training in genetic conservation and use. So, for many years, the University of Birmingham lay at the heart of the growing genetic resources movement, and played a pivotal role in ensuring that national programs worldwide had the trained personnel to set up and sustain genetic conservation of local crops and wild species. Many Birmingham graduates went on to lead national genetic resources programs, as evidenced by the number who attended the 4th International Technical Conference on Plant Genetic Resources convened by FAO in Leipzig in June 1996.

Birmingham PGR students at the Leipzig conference in 1996. Trevor Sykes (class of 1969) is wearing the red tie, in the middle of the front row, standing next to Andrea Clausen (Argentina) on his left. Geoff Hawtin, then Director General of IPGRI is fourth from the right (On the back row), and Lyndsey Withers (who gave a course on in vitro conservation to Birmingham students) is second from the right on the front row (standing in between Liz Matos (from Angola) on her left, and the late Rosa Kambuou (Papua New Guinea).


In April 1981, I joined that training effort as a faculty member at the university. For the previous eight years, I had been working for the International Potato Center (CIP) in Peru and Costa Rica. Around September 1980 (a couple months before I left Costa Rica to return to Lima and my next assignment with CIP), I was made aware that a Lectureship had just been advertised in the Department of Plant Biology (as the Department of Botany had been renamed) to contribute to the MSc course curriculum.

Jack Hawkes was due to retire in September 1982 after he reached the mandatory retirement age (for full professors) of 67. He persuaded the university to create a lectureship in his department to cover some of the important topics that he would vacate, primarily in crop diversity and evolution.

After my arrival in Birmingham, I didn’t have any specific duties for first four months. With the intake of the 1981-82 cohort, however, it was ‘full steam ahead’ and my teaching load remained much the same for the next decade. My teaching focused on crop diversity and evolution, germplasm exploration, and agricultural systems, although I made some small contributions to other topics as well.

I also took on the role of Short Course Tutor for those who came to study on one or both of the semester modules (about 12 weeks each).

Since its inception in 1969, the overall structure of the course remained much the same, with about nine months of theory, followed by written examinations. The curriculum varied to some degree over the lifetime of the course, as did the content as new biology opened new opportunities to study, conserve, and use genetic resources.

Following the examinations, all students completed a three-month research project and submitted a dissertation around the middle of September, which was examined by an external examiner. The first external examiner, from 1970-1972, was Professor Norman Simmonds, then Director of the Scottish Plant Breeding Station, and a widely respected plant breeder and potato and banana expert.

Financial support for students came from a variety of sources. The year after I graduated, the course was recognized by one of the UK research councils (I don’t remember which) for studentship support, and annually three or four British students were funded in this way through the 1970s and 80s. By the late 1970s, the International Board for Plant Genetic Resources¹ (IBPGR) funded many of the students coming from overseas, and had also agreed an annual grant to the department that, among other aspects, funded a lectureship in seed physiology and conservation (held by Dr Pauline Mumford). A few students were self-funded.

Here are some of the classes from 1978 to 1988; names of students can be found in this file. Do you recognize anyone?

L: Class of 1978 | R: Class of 1979

L: Class of 1984 | R: Class of 1985

L: Class of 1986 | Class of 1987

L: Class of 1988 | R: Short Course participants, Autumn semester 1987

The first group of students that I had direct contact with, in the autumn of 1981, came from Bangladesh, Germany, Indonesia, Malaysia, Portugal, Turkey, and Uruguay. After nearly 40 years I can’t remember all their names, unfortunately.

The MSc class of 1982: L-R: Ghani Yunus (Malaysia), ?? (Uruguay), Rainer Freund (Germany), Ayfer Tan (Turkey), Dr Pauline Mumford (IBPGR-funded lecturer), ?? (Bangladesh), ?? (Bangladesh), Maria Texeira (Portugal), ?? (Indonesia).

Over the decade I remained at Birmingham, I must have supervised the dissertation projects of about 20-25 students, quite an intensive commitment during the summer months. Since my main interest was crop diversity and biosystematics, several students ran projects on potatoes and Lathyrus. I curated the Hawkes collection of wild potato species, and had also assembled a large collection of Lathyrus species from different countries and diverse environments. Some students wanted to work on crops and species important in their countries and, whenever possible, we tried to accommodate their interests. Even with glasshouse facilities it was not always possible to grow many tropical species at Birmingham². In any case, the important issue was for students to gain experience in designing and executing projects, and evaluating germplasm effectively. Two students from Uganda for example, studied the resistance of wild potatoes from Bolivia to the potato cyst nematode, in collaboration with the Nematology Department at Rothamsted Experiment Station.

Several students stayed on to complete PhD degrees under my supervision, or jointly supervised with my colleague Professor Brian Ford-Lloyd (who was the MSc Course Tutor), and I have written more about that here.

Immediately on joining the department in 1981, Jack asked me to take on the supervision of two of his students, Lynne Woodwards and Adi Damania who were half way through their research. Lynne competed her study of the non-blackening trait in a tetraploid (2n=4x=48 chromosomes) wild potato species from Mexico, Solanum hjertingii in 1982. Adi split his time between Birmingham and the Germplasm Institute in Bari, Italy, where he was co-supervised by Professor Enrico Porceddu, studying barley and wheat landraces from Nepal and Yemen. One of the methods he used was the separation of seed proteins using gel electrophoresis. His PhD was completed in 1983.

Lynne’s research on Solanum hjertingii was continued by Ian Gubb, in collaboration with the Institute of Food Research in Norwich.

Two Peruvian students, Rene Chavez (1978) and Carlos Arbizu (1979) completed their PhD theses in 1984 and 1990 respectively. They did all their experimental work at CIP in Lima, studying wide crosses in potato breeding, and wild potatoes as sources of virus resistance.

Malaysian student Ghani Yunus (1982) returned to Birmingham around 1986 to commence his PhD and continued his study of the grasspea (Lathyrus sativus) that he began for his MSc dissertation.


While the MSc course comprised my main teaching load, I also had some undergraduate teaching commitments. I did no First Year teaching, thank goodness! In the Summer Semester I had a 50% commitment to a Flowering Plant Taxonomy module as part of the Second Year Plant Biology stream. I also gave half a dozen lectures on agricultural systems as part of a Second Year Common Course attended by all Biological Sciences students, and I eventually became chair of that course.

With Brian, we offered a Third (Final) Year option in conservation and use of genetic resources under the Plant Biology degree. I guess during the 1980s some 40 students (maybe more) chose that option. The five-week module comprised about 20-25 lectures, and each student also had to undertake an practical project as well. It was quite a challenge to devise and supervise so many ‘doable’ projects during such a short period.


While all this was going on, I also had a couple of research projects on potatoes. The first, on true potato seed, was in collaboration with CIP in Peru and the Plant Breeding Institute in Cambridge. Over the project’s five-year life, I traveled to Lima at least once a year. This also gave me an opportunity to check on progress of my PhD students there.

In another project (with Brian) funded by industry, we investigated the opportunity for using somaclonal variation to identify genotypes resistant to low temperature sweetening in potatoes. The research had an important spin-off however for the genetic conservation of vegetatively-propagated crops like potatoes, as we demonstrated that genetic changes do occur during in vitro or tissue culture.

Knowing of my annual trips to Peru, the chocolate and confectionery manufacturers in the UK asked me to scope the possibility of establishing a field genebank in Peru of cacao (cocoa) trees in the northeast of the country. The industry had funded a project like this in Ecuador, and wanted to replicate it in Peru. Regrettably, the security situation deteriorated markedly in Peru (due to the Shining Path or Sendero Luminoso terrorist group), and the project never went ahead.


Brian and I collaborated a good deal during the 1980s, in teaching, research, and publishing.

Around 1983 he and I had the idea of writing a short general text about genetic resources and their conservation. As far as we could determine there were no books of this nature suitable for both undergraduates and postgraduates. Having approached the publisher Edward Arnold, we set about putting our ideas down on paper. The book appeared in 1986, with a print run of 3000, which quickly sold out. After Edward Arnold was taken over by Cambridge University Press, our modest volume was re-issued in a digitally printed version in 2010.

In 1988, we organized the first International Workshop on Plant Genetic Resources at Birmingham, on in situ conservation. The topic of the second two-day workshop, in April 1989, focused on climate change and genetic resources. We were ahead of our time! Proceedings from the workshop were published by Belhaven Press in 1990. It was a theme that my co-editors and I returned to in 2014, published by CAB International.


Around 1989, however, I was becoming increasingly disillusioned with university life, and had begun to think about seeking other opportunities, although none seemed to come along. Until September 1990, that is. One morning, I received in the mail a copy of a recruitment announcement for Head of the Genetic Resources Center at the International Rice Research Institute (IRRI) in the Philippines. To this day I have no idea who sent me this announcement, as there was no cover note.

Nothing ventured, nothing gained, I decided to submit my application. After all, IRRI was a sister center of CIP, and I was very familiar with the international agricultural research centers funded through the Consultative Group on International Agricultural Research (CGIAR).

Personally, I knew it would be a huge opportunity, but also a challenge for Steph and our two daughters Hannah (13) and Philippa (9). But apply I did, and went for an interview at the beginning of January 1991, learning three weeks later that I was the preferred candidate of three interviewed. All three of us were ex-Birmingham MSc and PhD, having completed our theses under the supervision of Jack Hawkes. My ‘rivals’ were managing genebanks in the UK and Nigeria. I had no genebank experience per se.

I was about to become a genebanker, but I couldn’t join the institute quite as early as IRRI management desired. I still had teaching and examination commitments to fulfill for that academic year, which would not be finished until the end of June. Nevertheless, IRRI did ask me to represent the institute at a meeting in April of the Commission on Plant Genetic Resources at the Food and Agriculture Organization (FAO) in Rome, the first of many that I would attend over the next decade.

Friday 28 June was my last day at the university. Two days later I was on my way to Manila, to open the next chapter of my genetic resources adventure.


¹ Around 1990, IBPGR became the International Plant Genetic Resources Institute (IPGRI), and later, Bioversity International, expanding its headquarters in Rome.

² One of the students in my 1970-71 class, Folu Ogbe from Nigeria, undertook a project on West African rice and part of one glasshouse was converted to a ‘rice paddy’!


 

 

Whither the grasspea?

Would you knowingly eat something that could harm you? That’s the dilemma facing millions of poor, subsistence farmers and their families from time to time, especially in India, Bangladesh, and Ethiopia, when the alternative is not eating anything at all. Famine.

From the beginnings of agriculture and earlier, 10,000 or more years ago, farmers have cultivated and consumed in times of adversity, the seeds of a plant known scientifically as Lathyrus sativus L.¹ Or, more commonly, the grasspea. It’s also an important fodder crop for livestock.

On the plus side, grasspea has a good protein profile and, as a legume, it supplies nitrogen to the soil through its root nodules. Its particular agricultural value is that it can be grown in times of drought, as well as when the land is flooded. It’s the ultimate insurance crop for poor, subsistence farmers.

Yet, it holds a deadly secret. β-ODAP. Or more precisely, β-L-oxalyl-2,3-diaminopropionic acid to give its full name, an amino acid that is also a neurotoxin responsible for the condition known as lathyrism, a non-reversible paralysis. No wonder, then, that its cultivation is banned in some Indian states. In the past, its consumption has also had severe consequences in Europe.

‘Gracias a la Almorta’ or ‘Thanks to the Grasspea’ by Francisco de Goya (painted between 1811 and 1813), painted during the Spanish War of Independence, when poor people turned to eating grasspea, and suffered paralysis from lathyrism. However, on the British Museum website it suggests grain (millet) rather than ‘grasspea’, and no mention of lathyrism. ‘Almorta’ is a Spanish word for grasspea.

Yet, when needs must, poor farmers turn to the grasspea when there is nothing else to eat because drought or floods have wiped out other crops.

So what’s being done to overcome the grasspea’s downside? Fortunately, an international collaborative research effort (funded by the UK Government’s Global Challenges Research Fund), Unlocking the Potential of Grass pea for Resilient Agriculture in Drought Prone Environments (UPGRADE), aims to breed ‘sweet’ varieties of grasspea with a low content of the neurotoxin.

I learned about this project yesterday evening when I happened to tune into BBC Radio 4’s Inside Science (you can listen from about 11′ 20″ into the program). The John Innes Centre in the UK is one of the project members, and in Prof. Cathie Martin‘s lab, Dr Anne Edwards is screening about 500 different grasspea lines, testing them for β-ODAP content, and also introgressing the lower content trait into different genetic backgrounds, for future testing in the field.

I was fascinated to hear how this international collaboration was making progress towards defeating the scourge of lathyrism, as I’d also worked on grasspea almost 40 years ago. But from a crop evolution and genetic resources point of view.

When I returned to The University of Birmingham in 1981, I decided to start a small research project on grasspea, looking at the diversity and broader genetic resources of this important but somewhat neglected crop, in addition to continuing my research on potatoes.

In 1981, one of the students attending the one-year MSc Course on Conservation and Utilization of Plant Genetic Resources was Abdul bin Ghani Yunus from Malaysia. He worked on his dissertation project under my supervision, to study the diversity of grasspea. I already had assembled a collection of grasspea varieties from different sources around the world including the Vavilov Institute in St Petersburg, so Ghani had quite a stock of varieties to work with.

His dissertation led to one scientific paper, Variation in the grasspea, Lathyrus sativus L. and wild species, published in the journal Euphytica in 1984. There were two principal conclusions:

  • L. sativus is a highly variable species, and there is a clear distinction between the blue-flowered forms from south-west Asia, Ethiopia and the Indian subcontinent, and the white and white and blue flowered forms with white seeds which have a more westerly distribution. Differences in vegetative parts may be due to selection for forage types.
  • L. sativus appears to be closely related to L. cicera and L. gorgoni, and this relationship needs further investigation.

Ghani returned to Malaysia in 1982 to continue his research and teaching at the University of Agriculture, Selangor and I heard little from him, until about 1986. Then, he contacted me again, asking about the possibilities of returning to Birmingham to complete a PhD under my supervision. He wanted to work on a tropical species from Malaysia. But since he did not envision spending time back in Malaysia during his PhD program, I explained that working on this species (I don’t now remember what it was) was not feasible, since we wouldn’t be able to grow it successfully in the glasshouse at Birmingham. After all, it wasn’t the species per se that was the most important aspect for his PhD; it would be the focus, the scientific methods and approaches he would learn and employ that were more important.

I convinced him to continue his work on Lathyrus, but broadening its scope to study the biosystematics or biological relationships of the grasspea with the species considered to be its closest relatives. In that way we anticipated better defining the genetic resources or gene pools of the grasspea (an essential prerequisite if, at some time in the future, a breeding program was set up that needed to exploit more diversity), as well as trying to shed some light on the origin of this neglected food crop.

In 1990, Ghani successfully presented his PhD thesis, Biosystematics of Lathyrus Section Lathyrus with special reference to the grass pea, L. sativus L., leading to two more useful scientific papers that have been widely cited:

  • The genepools of the grasspea, Lathyrus sativus L., in Plant Breeding (1991). This research concerned the cross-breeding relationships of the grasspea and its closest relatives, based on experimental pollinations, pollen tube growth microscopy, and chromosome pairing, confirming one of our earlier hypotheses about L. cicera.
  • Phenotypic polymorphism of six isozymes in the grasspea (Lathyrus sativus L.), in Euphytica (1991). Ghani concluded that there was more genetic variation than perhaps expected in this self-pollinating species, and we discussed the implications of exploiting this diversity in plant breeding.

Today, the International Center for Agricultural Research in the Dry Areas (ICARDA) receives financial support from the Crop Trust to conserve almost 4200 samples of grasspea in its genebank, with 2000 safely stored in the Svalbard Global Seed Vault above the Arctic Circle.

Of course, grasspea is not the only edible plant species that comes with a health risk. In South America, for example, there are so-called ‘bitter’ varieties of cassava, an important source of carbohydrate, producing cyanogenic compounds that must be removed before the roots are safe to eat. Indigenous communities throughout Brazil evolved techniques to express the poisonous juice and make the food safe. In other parts of South America ‘sweet’ varieties were selected over thousands of years, and became the genetic base of commercial cassava varieties grown world-wide. The International Center for Tropical Agriculture (CIAT), based in Cali, Colombia has the world’s largest cassava germplasm that I was privileged to see in 2016 when I was conducting an evaluation of the CGIAR’s genebanks program.

This grasspea story is a good example of how progress can be made when there’s a clear research project objective, funding is available, and researchers around the world agree to pool their expertise towards solving an important problem. With recent reports that the head of DFID (the UK’s government department managing overseas development assistance or ODA) is seriously considering making changes to the 0.7% of national income commitment to the ODA budget, grasspea improvement for marginalized communities goes to show just how important such funding is, and the potential impact it can have on the lives of some of the poorest people around the world. This is the raison d’être of international agricultural research for development, an endeavor in which I participated over four decades.


¹ Grasspea is a relative of the garden sweetpea, Lathyrus odoratus, a plant that is grown for its showy, fragrant blooms.

Development aid is under threat . . . and Brexit isn’t helping

The United Kingdom is one of just a handful of countries that has committed to spend 0.7% of Gross National Income (GNI) on overseas development assistance (ODA or foreign aid) in support of the UN’s development goals. In fact that 0.7% target commitment is enshrined in UK law passed in 2015 (under a Conservative government), and the target has been met in every year since 2013. That’s something we should be proud of. Even the Tories should be proud of that. It seems, however, that many aren’t.

For a variety of reasons, the aid budget is under threat. After years of government austerity and the decline of home-grown services (NHS, police, education, and the like) through under-funding, and as we lurch towards Brexit, the right-wing media and politicians are seizing every opportunity to ignore (or actively distort, even trivialize) the objectives of development aid and what it has achieved around the world.  Or maybe they just lack understanding.

In 2016, the UK’s ODA budget, administered by the Department for International Development (DFID), was just over £13 billion (almost USD20 billion). Check this link to see where DFID works and on what sort of projects it spends its budget. That budget has ‘soared’, according to a recent claim by The Daily Mail.

In the post-Brexit referendum febrile atmosphere, the whole topic of development aid has seemingly become toxic with increasing calls among the right-wing media, headed by The Daily Mail (and supported by The Daily Express and The Telegraph) for the development budget to be reduced and instead spent on hiring more doctors and nurses, and other home-based services and projects, pandering to the prejudices of its readers. Such simplistic messages are grist to the mill for anyone troubled by the UK’s engagement with the world.

From: John Stevens and Daniel Martin for the Daily Mail, published at 22:42, 5 April 2018 | Updated: 23:34, 5 April 2018

There is unfortunately little understanding of what development assistance is all about, and right-wing politicians who really should know better, like the Member for Northeast Somerset (and the Eighteenth Century), Jacob Rees-Mogg have jumped on the anti-aid bandwagon, making statements such as: Protecting the overseas aid budget continues to be a costly mistake when there are so many other pressing demands on the budget.

Now there are calls for that 2015 Act of Parliament to be looked at again. Indeed, I just came across an online petition just yesterday calling on Parliament to debate a reduction of the development aid budget to just 0.2% of GNI. However, 100,000 signatures are needed to trigger a debate, and as I checked this morning it didn’t seem to be gaining much traction.

I agree it would be inaccurate to claim that all development aid spending has been wise, reached its ultimate beneficiaries, or achieved the impacts and outcomes intended. Some has undoubtedly ended up in the coffers of corrupt politicians.

I cannot agree however, with Conservative MP for Wellingborough and arch-Brexiteer, Peter Bone, who is reported as stating: Much of the money is not spent properly … What I want to see is more of that money spent in our own country … The way to improve the situation in developing countries is to trade with them.

As an example of the trivialization by the media of what development aid is intended for, let me highlight one example that achieved some notoriety, and was seized upon to discredit development aid.

What was particularly irksome apparently, with a frenzy whipped up by The Daily Mail and others, was the perceived frivolous donation (as high as £9 million, I have read) to a project that included the girl band Yegna, dubbed the Ethiopian Spice Girls, whose aim is to [inspire] positive behavior change for girls in Ethiopia through drama and music.

I do not know whether this aid did represent value for money; but I have read that the program did receive some positive reviews. However, the Independent Commission for Aid Impact raised some concerns as far back as 2012 about the Girl Effect project (known as Girl Hub then).

From their blinkered perspectives, various politicians have found it convenient to follow The Daily Mail narrative. What, it seems to me, they failed to comprehend (nor articulate for their constituencies) was how media strategies like the Girl Effect project can effectively target (and reach) millions of girls (and women) with messages fundamental to their welfare and well-being. After being in the media spotlight, and highlighted as an example of ‘misuse’ of the aid budget, the support was ended.

In a recent policy brief known as a ‘Green Paper’, A World for the Many Not the Few, a future Labour government has pledged to put women at the heart of British aid efforts, and broaden what has been described by much of the right-wing media as a left-wing agenda. Unsurprisingly this has received widespread criticism from those who want to reduce the ODA budget or cut it altogether.

But in many of the poorest countries of the world, development aid from the UK and other countries has brought about real change, particularly in the agricultural development arena, one with which I’m familiar, through the work carried out in 15 international agricultural research centers around the world supported through the Consultative Group on International Agricultural Research or CGIAR that was founded in 1971, the world’s largest global agricultural innovation network.

In a review article¹ published in Food Policy in 2010, agricultural economists Mitch Renkow and Derek Byerlee stated that CGIAR research contributions in crop genetic improvement, pest management, natural resources management, and policy research have, in the aggregate, yielded strongly  positive impacts relative to investment, and appear likely to continue doing so. Crop genetic improvement research stands out as having had the most profound documented positive impacts. Substantial evidence exists that other research areas within the CGIAR have had large beneficial impacts although often locally and nationally rather than internationally.

In terms of crop genetic improvement (CGI) they further stated that . . . estimates of the overall benefits of CGIAR’s contribution to CGI are extraordinarily large – in the billions of dollars. Most of these benefits are produced by the three main cereals [wheat, maize, and rice] . . . average annual benefits for CGIAR research for spring bread wheat, rice (Asia only), and maize (CIMMYT only) of $2.5, $10.8 and $0.6–0.8 billion, respectively . . . estimated rates of return to the CGIAR’s investment in CGI research ranging from 39% in Latin America to over 100% in Asia and MENA [Middle east and North Africa].

DFID continues to be a major supporter of the CGIAR research agenda, making the third largest contribution (click on the image above to open the full financial report for 2016) after the USA and the Bill & Melinda Gates Foundation. At £43.3 million (in 2016), DFID’s contribution to the CGIAR is a drop in the ocean compared to its overall aid budget. Yet the impact goes beyond the size of the contribution.

I don’t believe it’s unrealistic to claim that the CGIAR has been a major ODA success over the past 47 years. International agricultural research for development has bought time, and fewer people go to bed hungry each night.

Nevertheless, ODA is under threat everywhere. I am concerned that in the clamour to reduce (even scrap) the UK’s ODA international collaborations like the CGIAR will face even more funding challenges. In Donald Trump’s ‘America First’ dystopia there is no certainty that enormous support provided by USAID will continue at the same level.

Most of my professional career was concerned with international agricultural research for development, in South and Central America (with the International Potato Center, or CIP, from 1973 to 1981) and the International Rice Research Institute (IRRI) in the Philippines (from 1991 to 2010). The conservation of plant genetic resources or  agrobiodiversity in international genebanks (that I have highlighted in many stories on this blog) is supported through ODA. The crop improvement programs of the CGIAR centers like CIMMYT, IRRI, ICARDA and ICRISAT have released numerous improved varieties for use in agricultural systems around the world. Innovative research is combating the threats of new crop diseases or the difficulties of growing crops in areas subject to flooding or drought².

This research (often with critical links back into research institutes and universities in donor countries) has led to improvements in the lives of countless millions of poor people around the world. But the job is not finished. Populations continue to grow, with more mouths to feed. Civil unrest and conflicts continue to blight some of the poorest countries in the world. And biology and environment continue to throw challenges at us in the form of new disease strains or a changing climate, for example. Continued investment in ODA is essential and necessary to support agricultural research for development.

Agriculture is just one sector on the development spectrum.  Let’s not allow the likes of Jacob Rees-Mogg, Peter Bone, or The Daily Mail to capture the development debate for what appear to be their own xenophobic purposes.

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¹ Renkow, M and D Byerlee, 2010. The impacts of CGIAR research: A review of recent evidence. Food Policy 35 (5), 391-402. doi.org/10.1016/j.foodpol.2010.04.006

² In another blog post I will describe some of this innovative research and how the funding of agricultural research for development and greater accountability for ODA has become rather complicated over the past couple of decades.

Has global warming changed the landscape?

During the three years Steph and I lived in Lima, working at the International Potato Center (CIP) at La Molina on the eastern outskirts of the city (now totally enveloped by it), one or the other of us had to travel almost on a weekly basis between December and April from Lima to Huancayo. At an altitude of more than 3000 m above sea level (over 10,000 feet), Huancayo was the location of CIP’s highland experiment station.

During the first season I worked there (between January and April 1973, and before Steph joined me in Peru) most of the potato hybridization work I did was carried out in the garden of the parents of one of my colleagues, Dr Maria Scurrah. CIP didn’t have any facilities of its own during that first year, and also rented land north of the city to grow its large germplasm collection of indigenous potato varieties.

It was only after I’d moved to Costa Rica to become CIP’s regional leader in Mexico, Central America and the Caribbean in 1976 that permanent laboratories, greenhouses, and a guesthouse were constructed (put in jeopardy by the rise of the terrorist organisation Sendero Luminoso in the late 1980s and 1990s).

A distance of almost 300 km by road on the Carretera Central, the journey would take around six hours. Usually we’d leave CIP before mid-morning, and aim to reach San Mateo (about 95 km) a couple of hours or so later, in time for lunch. Sometimes we’d drive as far as La Oroya on the eastern side of the highest point of the road. La Oroya, a town dominated by ore smelters and awesome pollution is one of the most depressing places I have ever visited. The fumes from the smelters have blasted all the vegetation from hillsides for miles around.

The road to Huancayo crosses the Andes watershed at the highest point, Ticlio, at 4843 m. From there the road drops quickly towards La Oroya before flattening out along the Mantaro River, and southeast into the broad Mantaro Valley.

We usually travelled, after 1974, in a Chevrolet Suburban (like the one illustrated below) that carried about four passengers plus driver, or in a pickup.

In early 1974, when I took the photo on the left, snow covered the ground at Ticlio. Two decades later during a meeting of the Inter-Center Working Group on Genetic Resources, there was hardly any snow to be seen.

One of my colleagues at CIP, and Head of CIP’s Outreach Program from 1973-76 or so, was Richard ‘Dick’ Wurster who had spent some years with a potato program in East Africa (Uganda I believe) before being recruited to join CIP. Dick was independently wealthy, and a licensed pilot. He brought his own aircraft with him! And CIP took advantage of that to use it to ferry staff to Huancayo, landing at the unmanned airstrip in Jauja, now the Francisco Carle Airport served by scheduled airlines. It was a six-seater I believe, maybe a Cessna O-2 Skymaster. Anyway, CIP had a full time pilot. A year or so later, CIP purchased its own aircraft, a much more powerful model with a longer range.

To fly to Jauja safely, the flight path had to cross the Andes at around 22-24,000 feet. Dick’s plane was not sufficiently powered to climb directly from Lima over the mountains. So it would take off from Jorge Chavez Airport (Lima’s international airport) on the coast, and climb inland, more or less following the Carretera Central, before turning around and heading back to the coast, climbing all the time. Then it would head east once again, having gained sufficient height in the meantime to cross the watershed, and miss all the mountains that stand in the way.

Flying on a cloudy day was always a tense trip, because the pilot had to dead reckon where he was, then, seeing an opening in the cloud cover, dive down to come in over the Mantaro Valley, making at least one pass over Jauja airstrip to check there were no human or animal obstacles blocking the runway.

That’s looks like Dr Parviz Jatala (one of CIP’s nematologists) alongside the pilot.

Anyway when I recently came across the photos below (taken around 1974), on a clear day crossing the Andes, I was struck by the amount of snow and ice cover, glaciers even. And that made me wonder, in these times of global warming, how that phenomenon has affected the snow cover on these Andes peaks today.

A serious decline in snow and ice cover would have considerable knock-on effects in terms of water availability east towards the Mantaro Valley, and more seriously to the west, down the River Rimac to Lima that depends so heavily on this source of water from the mountains.

There’s beauty in numbers . . .

Now, what I want is, facts . . . Stick to the facts, sir!

Thus spoke businessman, MP, and school superintendent Thomas Gradgrind in the opening paragraph of Charles Dickens’ tenth novel, Hard Times, first published in 1854.

Increasingly however, especially on the right of the political spectrum, facts have become a debased currency. ‘Alternative facts’ and ‘fake news’ have become an ‘alternative religion’, faith-based and not susceptible to the norms of scientific scrutiny. Fake data are also being used as a ‘weapon’.

I am a scientist. I deal with facts. Hypotheses, observations, numbers, data, analysis, patterns, interpretation, conclusions: that’s what science is all about.

There really is a beauty in numbers, my stock-in-trade for the past 40 years: describing the diversity of crop plants and their wild relatives; understanding how they are adapted to different environments; how one type resists disease better than another; or how they can contribute genetically to breed higher-yielding varieties. The numbers are the building blocks, so to speak. Interpreting those blocks is another thing altogether.

Statistical analysis was part and parcel of my scientific toolbox. Actually, the application of statistics, since I do not have the mathematical skills to work my way through the various statistical methods from first principles. This is not surprising considering that I was very weak in mathematics during my high school years. Having passed the necessary examination, I intended to put maths to one side forever, but that was not to be since I’ve had to use statistics during my university education and throughout my career. And playing around with numbers, looking for patterns, and attempting to interpret those patterns was no longer a chore but something to look forward to.

So why my current obsession with numbers?

First of all, since Donald Trump took up residence in the White House (and during his campaign) numbers and ‘alternative facts’ featured prominently. Trump does not respect numbers. However, more of this later.

Second, I recently came across a scientific paper about waterlogging tolerance in lentils by a friend of mine, Willie Erskine, who is a professor at the University of Western Australia (although I first knew him through his work at ICARDA, a CGIAR center that originally had its headquarters in Aleppo, Syria). The paper was published last month in Genetic Resources and Crop Evolution. Willie and his co-authors showed that lentil lines did not respond in the same way to different waterlogging regimes, and that waterlogging tolerance was a trait that could be selected for in lentil breeding.

A personal data experience
While out on my daily walk a couple of days later, I mulling over in my mind some ideas from that lentil paper, and it reminded me of an MSc dissertation I supervised at The University of Birmingham in the 1980s. My student, Shibin Cai, came from the Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, China where he worked as a wheat scientist.

Cai was interested to evaluate how wheat varieties responded to waterlogging. So, having obtained several wheat lines from the International Maize and Wheat Improvement Center (CIMMYT) in Mexico, we designed a robust experiment to evaluate how plants grew with waterlogging that was precisely applied at different critical stages in the wheat plant’s life cycle: at germination, at booting, and at flowering, as far as I remember. I won’t describe the experiment in detail, suffice to say that we used a randomized complete block design with at least five replicates per variety per treatment and control (i.e. no waterlogging whatsoever). Waterlogging was achieved by placing pots inside a larger pot lined with a polythene bag and filled with water for a definite length of time. Cai carefully measured the rate of growth of the wheat plants, as well as the final yield of grains from each.

After which we had a large database of numbers. Observations. Data. Facts!

Applying appropriate statistical tests to the data, Cai clearly showed that the varieties did indeed respond differently to waterlogging, and we interpreted this to indicate genetic variation for this trait in wheat that could be exploited to improve wheat varieties for waterlogging-prone areas. I encouraged Cai to prepare a manuscript for publication. After all, I was confident with the quality of his research.

We submitted his manuscript to the well-known agricultural research journal Euphytica. After due process, the paper was rejected—not the first time this has happened to me I should add. But I was taken aback at the comments from one of the anonymous referees, who did not accept our results—the observations, the data—claiming that there was no evidence that waterlogging was a verifiable trait in wheat, and especially in the lines we had studied. Which flew in the face of the data we had presented. We hadn’t pulled the numbers like a rabbit out of a hat. I did then wonder whether the referee was a wheat expert from CIMMYT. Not wishing to be paranoid, of course, but was the referee biased? I never did get an opportunity to take another look at the manuscript to determine if it could be revised in any way. As I said, we were confident in the experimental approach, the data were solid, the analysis sound—and confirmed by one of my geneticist colleagues who had a much better grasp of statistics than either Cai or me. Result? The paper was never published, something I have regretted for many years.

So you can see that there were several elements to our work, as in much of science. We had a hypothesis about waterlogging tolerance in wheat. We could test this hypothesis by designing an experiment to measure the response of wheat to waterlogging. But then we had to interpret the results.

Now if we had measured just one plant per variety per treatment all we could have said is that these plants were different. It’s like measuring the height say of a single plant of two wheat varieties grown in different soils. All we can state is the height we measured. We can make no inference about any varietal differences or responses. For that we need several measurements—numbers, data—that allow us to state whether if any observed differences are ‘real’ or due to chance. That’s what we do all time in science. We want to know if what we measure is a true reflection of nature. It’s not possible to measure everything, so we use a sample, and then interpret the data using appropriate statistical analyses. But we have to be careful as this interesting article on the perils of statistical interpretation highlights.

Back to The Donald
One of the most important and current data relationships is based in climate science. And this brings me back to The Donald. There is an overwhelming consensus among scientists that relationship between increased CO2 levels and increases in global temperatures is the result of human activity. The positive relationship between the two sets of data is unequivocal. But does that mean a cause and effect relationship? The majority of scientists say yes; climate deniers do not. That makes the appointment of arch-denier Scott Pruitt as head of the Environment Protection Agency in the US so worrying.

Donald Trump does not like facts. He doesn’t like numbers either unless he can misappropriate them in his favor (such as the jobs or productivity data that clearly relate to the policies under Mr 44). He certainly did not like the lack of GOP numbers to pass his repeal of the Affordable Care Act (aka Obamacare).

He regularly dismisses the verifiable information in front of his eyes, preferring ‘alternative facts’ and often inflated numbers to boot, instead. Just remember his sensitivity and his absurd claims that the 20 January National Mall crowds were largest for any presidential inauguration. The photographic evidence does not support this Trumpian claim; maybe fantasy would be a better description.

Time magazine has just published an excellent article, Is Truth Dead? based on an interview with The Donald, and to back it up, Time also published a transcript of the interview. This not only proves what Mr 45 said, but once again demonstrates his complete lack of ability to string more than a couple of coherent words together. Just take a look for yourselves.

Part of Trump’s rhetoric (or slow death by Tweet) is often based on assertions that can be verified: the biggest, the longest, the most, etc. Things can measured accurately, the very thing he seems to abhor. His aim to Make America Great Again cannot be measured in the same way. What is great? Compared to what or when? It’s an interpretation which can be easily contradicted or at the very least debated.

That’s what so disconcerting about the Trump Administration. The USA is a scientific powerhouse, but for how much longer if the proposed agency budget cuts that The Donald has promised really bite (unless related to the military, of course). There’s an increasing and worrying disdain for science among Republican politicians (and here in the UK as well); the focus on climate change data is the prime expression of that right now.

Plant Genetic Resources: Our challenges, our food, our future

phillips-jade

Jade Phillips

That was the title of a one day meeting on plant genetic resources organized by doctoral students, led by Jade Phillips, in the School of Biosciences at The University of Birmingham last Thursday, 2 June. And I was honoured to be invited to present a short talk at the meeting.

Now, as regular readers of my blog will know, I began my career in plant genetic resources conservation and use at Birmingham in September 1970, when I joined the one year MSc course on genetic conservation, under the direction of Professor Jack Hawkes. The course had been launched in 1969, and 47 years later there is still a significant genetic resources presence in the School, even though the taught course is no longer offered (and hasn’t accepted students for a few years). Staff have come and gone – me included, but that was 25 years ago less one month, and the only staff member offering research places in genetic resources conservation is Dr Nigel Maxted. He was appointed to a lectureship at Birmingham (from Southampton, where I had been an undergraduate) when I upped sticks and moved to the International Rice Research Institute (IRRI) in the Philippines in 1991.

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Click on this image for the full program and a short bio of each speaker.

Click on each title below; there is a link to each presentation.

Nigel Maxted (University of Birmingham)
Introduction to PGR conservation and use

Ruth Eastwood (Royal Botanic Gardens, Kew – Wakehurst Place)
‘Adapting agriculture to climate change’ project

Holly Vincent (PhD student, University of Birmingham)
Global in situ conservation analysis of CWR

Joana Magos Brehm (University of Birmingham)
Southern African CWR conservation

Mike Jackson
Valuing genebank collections

Åsmund Asdal (NordGen)
The Svalbard Global Seed Vault

Neil Munro (Garden Organic)
Heritage seed library

Maria Scholten
Natura 2000 and in situ conservation of landraces in Scotland: Machair Life (15 minute film)

Aremi Contreras Toledo, Maria João Almeida, and Sami Lama (PhD students, University of Birmingham)
Short presentations on their research on maize in Mexico, landraces in Portugal, and CWR in North Africa

Julian Hosking (Natural England)
Potential for genetic diversity conservation – the ‘Fifth Dimension’ – within wider biodiversity protection

I guess there were about 25-30 participants in the meeting, mainly young scientists just starting their careers in plant genetic resources, but with a few external visitors (apart from speakers) from the Millennium Seed Bank at Kew-Wakehurst Place, the James Hutton Institute near Dundee, and IBERS at Aberystwyth.

The meeting grew out of an invitation to Åsmund Asdal from the Nordic Genetic Resources Center (NordGen) to present a School of Biosciences Thursday seminar. So the audience for his talk was much bigger.

asmund

Åsmund is Coordinator of Operation and Management for the Svalbard Global Seed Vault, and he gave a fascinating talk about the origins and development of this important global conservation facility, way above the Arctic Circle. Today the Vault is home to duplicate samples of germplasm from more than 60 depositor genebanks or institutes (including the international collections held in the CGIAR genebank collections, like that at IRRI.

Nigel Maxted’s research group has focused on the in situ conservation and use of crop wild relatives (CWR), although they are also looking at landrace varieties as well. Several of the papers described research linked to the CWR Project, funded by the Government of Norway through the Crop Trust and Kew. Postdocs and doctoral students are looking at the distributions of crop wild relatives, and using GIS and other sophisticated approaches that were beyond my comprehension, to determine not only where there are gaps in distributions, lack of germplasm in genebank collections, but also where possible priority conservation sites could be established. And all this under the threat of climate change. The various PowerPoint presentations demonstrate these approaches—which all rely on vast data sets—much better than I can describe them. So I encourage you to dip into the slide shows and see what this talented group of scientists has been up to.

Neil Munro from Garden Organic described his organization’s approach to rescue and multiply old varieties of vegetables that can be shared among enthusiasts.

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Seeds cannot be sold because they are not on any official list of seed varieties. What is interesting is that one variety of scarlet runner bean has become so popular among gardeners that a commercial seed company (Thompson & Morgan if I remember what he said) has now taken  this variety and selling it commercially.

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Julian Hosking from Natural England gave some interesting insights into how his organization was looking to combine the conservation of genetic diversity—his ‘Fifth Dimension’—with conservation of natural habitats in the UK, and especially the conservation of crop wild relatives of which there is a surprisingly high number in the British flora (such as brassicas, carrot, and onions, for example).

So, what about myself? When I was asked to contribute a paper I had to think hard and long about a suitable topic. I’ve always been passionate about the use of plant genetic diversity to increase food security. I decided therefore to talk about the value of genebank collections, how that value might be measured, and I provided examples of how germplasm had been used to increase the productivity of both potatoes and rice.

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Nicolay Vavilov is a hero of mine

Although all the speakers developed their own talks quite independently, a number of common themes emerged several times. At one point in my talk I had focused on the genepool concept of Harlan and de Wet to illustrate the biological value (easy to use versus difficult to use) of germplasm in crop breeding.

Jackson FINAL - Valuing Genebank Collections

In the CWR Project research several speakers showed how the genepool concept could be used to set priorities for conservation.

Finally, there was one interesting aspect to the meeting—from my perspective at least. I had seen the titles of all the other papers as I was preparing my talk, and I knew several speakers would be talking about future prospects, especially under a changing climate. I decided to spend a few minutes looking back to the beginning of the genetic conservation movement in which Jack Hawkes was one of the pioneers. What I correctly guessed was that most of my audience had not even been born when I started out on my genetic conservation career, and probably knew very little about how the genetic conservation movement had started, who was involved, and what an important role The University of Birmingham had played. From the feedback I received, it seems that quite a few of the participants were rather fascinated by this aspect of my talk.

I used to be uncertain, but now I’m not so sure (updated 5 December 2015)

Regular visitors to my blog will, by now, know that for many years from July 1991 I worked at the International Rice Research Institute (IRRI) in Los Baños in the Philippines, south of Manila. For the first 10 years, I was head of the Genetic Resources Center (GRC), having particular responsibility for the International Rice Genebank (now supported financially by the Global Crop Diversity Trust). Elsewhere on this blog I have written about the genebank and what it takes to ensure the long-term safety of all the germplasm samples (or accessions as they are known) of cultivated rices and related wild species of Oryza.

Well, consider my surprise, not to say a little perplexed, when I recently read a scientific paper¹ that had just been published in the journal Annals of Botany by my former colleagues Fiona Hay (IRRI) and Richard Ellis (University of Reading), with their PhD student Katherine Whitehouse, about the beneficial effect of high-temperature drying on the longevity of rice seeds in storage. Now this really is a big issue for curators of rice germplasm collections, let alone other crop species perhaps.

So why all the fuss, and why am I perplexed about this latest research? Building on a paper published in 2011 by Crisistomo et al. in Seed Science & Technology², this most recent research¹ provides significant evidence, for rice at least, that seed drying at a relatively low temperature and relative humidity, 15C and 15RH—the genebank standard for at least three decades—may not be the best option for some rice accessions, depending on the moisture content of seeds at the time of harvest. It’s counter-intuitive.

But also because germplasm regeneration and production of high quality seeds is one aspect of germplasm conservation most likely to be impacted by climate change, as Brian Ford-Lloyd, Jan Engels and I emphasized in our chapter in Genetic Resources and Climate Change.

To explain further, it’s necessary to take you back 24 years to when I first joined IRRI.

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Dr Klaus Lampe, IRRI Director General 1988-1995

The first six months or so
The Director General in 1991, Dr Klaus Lampe, encouraged me to take a broad view of seed management services at IRRI, specifically the operations and efficiency of the International Rice Genebank (IRG). It was also agreed that I should develop research on the germplasm collection and its conservation, something that had not been considered when the GRC Head position was advertised in September 1990. I should add that in negotiating and accepting the GRC position, I had insisted that GRC should have a research arm, so to speak. I guess I was in a fairly strong negotiating position.

Dr TT Chang, first head of the International Rice Germplasm Center at IRRI

Dr TT Chang

Once at IRRI, I didn’t rush into things. After all, I had never run a genebank before let alone work on rice, although much of my career to that date had been involved in various aspects of germplasm conservation and use. But after about six months, I reckon I’d asked enough questions, looked at how the genebank was running on a day-to-day basis. I had developed a number of ideas that I thought should vastly enhance the long-term conservation of rice germplasm, but at the same time allow all the various operations of the genebank run smoothly and hopefully more efficiently. In one sense, managing the individual aspects or operations of a genebank are quite straight-forward. It’s bringing them all together that’s the tricky part.

There was another ‘delicate’ situation to address, however. All the Filipino staff had worked for only one person for many years, my predecessor as head of the genebank (then known as the International Rice Germplasm Center, or IRGC), Dr TT Chang. It’s not an understatement to say that many of these staff were fiercely loyal to Dr Chang (loyalty being one of their greatest virtues), firmly fixed in their ways, and didn’t feel—or maybe understand—that changes were desirable or even necessary. It was a classic change management situation that I was faced with. I needed to help them evaluate for themselves the current genebank management focus, and propose (with more than a little encouragement and suggestions from me) how we might do things differently, and better.

Some radical changes
But I don’t think anyone foresaw the radical changes to the management of the genebank that actually emerged. The genebank was ‘the jewel in IRRI’s crown’, the facility that every visitor to the institute just had to see. It seemed to run like clockwork—and it did, in its own way.

Staffing and responsibilities
Apart from several staffing issues, I was particularly concerned about how rice germplasm was being regenerated in the field, and how it was handled prior to medium-and long-term storage in the genebank. There were also some serious germplasm data issues that needed tackling—but that’s for another blog post, perhaps.

In terms of genebank operations, it was clear that none of the national staff had responsibility (or accountability) for their various activities. In fact, responsibilities for even the same set of tasks, such as germplasm regeneration or characterization, to name just two, were often divided between two or more staff. No-one had the final say. So very quickly I appointed two staff, Flora ‘Pola’ de Guzman and Renato ‘Ato’ Reaño to take charge of the day-today management of the seed collection (and genebank facilities per se) and germplasm regeneration, respectively. Another staff, Tom Clemeno, was given responsibility for all germplasm characterization.

Working in the field
But what seemed rather strange to me was the regeneration of rice germplasm at a site, in rented fields, some 10km east of the IRRI Experiment Station, at Dayap. This meant that everything—staff, field supplies, etc.—had to be transported there daily, or even several times a day. It made no sense to me especially as the institute sat in the middle of a 300 ha experiment station, right on the genebank’s doorstep. In fact, the screenhouse for the wild rice collection had been constructed on one part of the station known as the Upland Farm. To this day I still don’t understand the reasons why Dr Chang insisted on using the site at Dayap. What was the technical justification?

Also the staff were attempting to regenerate the germplasm accessions all year round, in both ‘Dry Season’ (approximately December to May) and the ‘Wet Season’ (June to November). Given that the IRRI experiment station has full irrigation backup, it seemed to me that we should aim to regenerate the rice accessions in the Dry Season when, under average conditions, the days are bright and sunny, and nights cooler, just right for a healthy rice crop, and when the best yields are seen. The Wet Season is characterized obviously by day after day of continuous rainfall, often heavy, with overcast skies, and poor light quality. Not to mention that Wet Season in the Philippines is also ‘typhoon season’. So we separated the regeneration (Dry Season) from the characterization (Wet Season) functions.

But could we do more, particularly with regard to ensuring that only seeds of the highest quality are conserved in the genebank?  That is, to increase the longevity of seeds in storage—the primary objective of the genebank, after all, to preserve these rice varieties and wild species for future generations? And in the light of the latest research by Katherine Whitehouse, Fiona and Richard, did we make the right decisions and were we successful?

Seed environment and seed longevity
That’s where I should explain about the research collaboration with Richard Ellis at that time (Ellis et al. 1993; Ellis & Jackson 1995), and helpful advice we received from Roger Smith and Simon Linington, then at Kew’s Wakehurst Place (and associated with the founding of the Millennium Seed Bank).

Dr N Kameswara Rao

Dr N Kameswara Rao, now head of the genebank at the International Center for Biosaline Agriculture (ICBA) in the UAE-Dubai.

I hired a post-doctoral fellow, Dr N Kameswara Rao, on a two-year assignment from sister center ICRISAT (based in Hyderabad).  Kameswara Rao had completed his PhD at Reading under seed physiologist Professor Eric Roberts.

We set about studying the relationship between the seed production environment and seed longevity in storage, and the effect of sowing date and harvest time on seed longevity in different rice types, particularly hard-to-conserve temperate (or japonica) rice varieties (Kameswara Rao & Jackson 1996a; 1996b; 1996c; 1997). And these results supported the changes we had proposed (and some even implemented) to germplasm regeneration and seed drying.

In 1991, the IRG did not have specific protocols for germplasm generation such as the appropriate harvest dates, and seed drying appeared to me to be rather haphazard, hazardous even. Let me explain. Immediately after harvest, rice plants in bundles (stems, leave and grains) were dried on flat bed dryers before threshing, heated by kerosene flames, for several days. Following threshing, and before final cleaning and storage, seeds were dried in small laboratory ovens at ~50C. It seemed to me that rice seeds were being cooked. So much for the 15C/15RH genebank standard for seed drying!

During the renovation of institute infrastructure in the early 1990s we installed a dedicated drying room³, with a capacity for 9000 kg, in which seeds could be dried to an equilibrium 6% moisture content (MC) or thereabouts, after a week or so, under the 15/15 regime.

A rethink
Now this approach has been apparently turned on its head. Or has it?

To read the headlines in some reports of the Whitehouse et al. paper, you would think that the 15/15 protocol had been abandoned altogether. This is not my reading of what they have to report. In fact, what they report is most encouraging, and serves as a pointer to others who are engaged in the important business of germplasm conservation.

In her experiments, Katherine compared seeds with different initial MC harvested at different dates that were then dried either under the 15/15 conditions, or put through up to six cycles of drying on a batch drier, each lasting eight hours, before placing them in the 15/15 seed drying room to complete the drying process, before different seed treatments to artificially age them and thereby be able to predict their longevity in storage before potential germination would drop to a dangerous level.

This is what Katherine and her co-authors conclude: Seeds harvested at a moisture content where . . . they could still be metabolically active (>16.2%) may be in the first stage of the post-mass maturity, desiccation phase of seed development and thus able to increase longevity in response to hot-air drying. The genebank standards regarding seed drying for rice and, perhaps, for other tropical species should therefore be reconsidered.

Clearly seeds that might have a higher moisture content at the time of harvest do benefit from a period of high temperature drying. Because of the comprehensive weather data compiled at IRRI over decades, Katherine was also able to infer some of the field conditions and seed status of the Kameswara Rao experiments. And although the latest results do seem to contradict our 1996 and 1997 papers, they provide very strong support for the need to investigate this phenomenon further. After all, Katherine studied only a small sample of rice accessions (compared to the 117,000+ accessions in the genebank).

The challenge will be, if these results are confirmed in independent rice studies—and even in other species, to translate them into a set of practical genebank standards for germplasm regeneration and drying and storage for rice. And it must be possible for genebank managers to apply these new standards easily and effectively. After all many are not so fortunate as GRC to enjoy the same range of facilities and staff support.

I’m really pleased to see the publication of this research. It’s just goes to demonstrate the importance and value of research on genebank collections, whatever the crop or species. Unfortunately, not many genebank are in this league, so it behoves the CGIAR centers to lead from the front; something I’m afraid that not all do, or are even able to do. Quite rightly they keep a focus on managing the collections. But I would argue that germplasm research is also a fundamental component of that management responsibility. Brownie points for IRRI for supporting this role for almost a quarter of a century. And for Fiona as well for ensuring that this important work got off the ground. Good luck to Katherine when she comes to defend her thesis shortly.

A recent seminar
On 12 November, Fiona gave a seminar at IRRI in the institute’s weekly series, titled How long can rice seeds stay alive for? In this seminar she explores changes that have been made to genebank operations over the years and the extent to which these did or did not affect the potential longevity of rice seeds in the genebank. She talks in some detail about the benefits of initial ‘high temperature’ drying that appears to increase potential longevity of seeds. As I queried with her in a series of emails afterwards, it’s important to stress that this high temperature drying does not replace drying in the 15/15 drying room. Furthermore, it will be necessary at some stage to translate these research findings into a protocol appropriate for the long term conservation of rice seeds at -18C.

Fiona has graciously permitted me to post her PowerPoint presentation in this blog, and the audio file that goes with it. You’ll have to open the PPT file and make the slide changes as you listen to Fiona speaking. I’ve done this and it’s actually quite straightforward to follow along and advances the slides and animations in her PPT. Click on the image below to download the PPT file. Just open it then set the audio file running.

Fiona Hay seminar title

Here’s the audio file.


I am also pleased to see that the CGIAR genebanks have also established a seed longevity initiative under the auspices of the Global Crop Diversity Trust. You can read more about it here.

Seed storage – an interesting anecdote
In 1992 we implemented the concept of Active (+3-4C) and Base (-18C) Collections in the IRG. Before then all rice seeds were stored in small (20g if I remember correctly) aluminium cans. We retained the cans for the Base Collection: once sealed we could expect that they would remain so for the next 50 years or more. But in the Active Collection there was no point having cans, if they had to be opened periodically to remove samples for distribution, and could not be re-sealed.

So we changed to laminated aluminium foil packs. Through my contacts at Kew – Wakehurst Place (home of the Millennium Seed Bank), Roger Smith and Simon Linington, we identified a manufacturer in the UK (from near Manchester I believe) who could make packs of different sizes, using a very high quality and tough laminate of Swedish manufacture (originally developed to mothball armaments). It had an extremely low, if not zero, permeability, and was ideal for seed storage. Unfortunately by the time we made contact, the company had gone into liquidation, but the former managing director was trying to establish an independent business. On the strength of a written commitment from IRRI to purchase at least 250,000 packs, and probably more in the future, this gentleman was able to secure a bank loan, and go into business once again. And IRRI received the seed storage packages that it ordered, and still uses as far as I know. The images below show genebank staff handling both aluminium cans in the Base Collection and the foil packs in the Active Collection. You can see the Active Collection in the video below at minute 1:09.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~
¹ KJ Whitehouse, FR Hay & RH Ellis, 2015. Increases in the longevity of desiccation-phase developing rice seeds: response to high-temperature drying depends on harvest moisture content. Annals of Botany doi:10.1093/aob/mcv091.

² S Crisostomo, FR Hay, R Reaño and T Borromeo, 2011. Are the standard conditions for genebank drying optimal for rice seed quality? Seed Science & Technology 39: 666-672.

³ If you would like to see what the seed drying room looks like, just go to minute 9:40 in the video below:

 

A lifetime’s work . . .

I published my first scientific paper in 1972. It described a new technique to make root tip squashes to count chromosomes, and it was published in the August 1972 volume of the Journal of Microscopy. It came out of the work I did for my MSc dissertation on lentils and their origin.

Then in January 1973 I entered the world of work, and for the next 37 years until my retirement in April 2010, I worked as a research scientist or research manager at just three organizations (although I actually held five different positions) at: the International Potato Center (CIP) in Peru (1973-1981); The University of Birmingham (1981-1991); and the International Rice Research Institute (IRRI) in the Philippines (1991-2010).

The focus of my research was primarily the conservation and use of plant genetic resources, specifically of potatoes, grain legumes, and rice, with biosystematics and genetic diversity, as well as different approaches to germplasm conservation, being particular themes. But I also studied potato diseases and agronomy.

So as much for my own interest and anyone else who might like to review my scientific contributions, this blog post relates specifically to my refereed papers, books, chapters, and other miscellaneous publications that I have written over the decades.

Science is a collaborative endeavour, and I have been extremely fortunate to have had the opportunity of working with some outstanding colleagues from different organizations around the world, as well as supervising the research of great graduate students at Birmingham for their PhD degrees, or staff at the Genetic Resources Center at IRRI. But having taken on a senior management role at IRRI in 2001 there was obviously less opportunity thereafter to engage in scientific publication, apart from several legacy studies from my active research years.

I have provided links to PDF copies of these papers where available. And I have also given, in [ ], the number of citations for each (details from Google Scholar, where available, as of 24 March 2024).

PAPERS IN REFEREED JOURNALS

Biosystematics & germplasm diversity
I trained as a biosystematist looking at the species relationships of lentils and potatoes. So when I moved to IRRI in 1991, I decided that we needed to understand better the germplasm collection (now more than 117,000 seed accessions of cultivated and wild rices) in terms of species range and relationships. Over the next 10 years we invested in a significant effort to study the AA genome species most closely related to cultivated rice, Oryza sativa. We also reported some of the first applications of molecular markers to study a germplasm collection, and one of the first—if not the first—studies in association genetics, in a collaboration with The University of Birmingham and the John Innes Centre, Norwich.

Wild rice crosses

The 39 papers listed here cover work on potatoes, rice, lentil, grass pea (Lathyrus), and a fodder legume, tagasaste, from the Canary Islands.

Damania, A.B., M.T. Jackson & E. Porceddu, 1984. Variation in wheat and barley landraces from Nepal and the Yemen Arab Republic. Zeitschrift für Pflanzenzüchtung 94, 13-24. PDF [21]

Ford-Lloyd, B.V., D. Brar, G.S. Khush, M.T. Jackson & P.S. Virk, 2008. Genetic erosion over time of rice landrace agrobiodiversity. Plant Genetic Resources: Characterization and Utilization 7(2), 163-168. PDF [27]

Ford-Lloyd, B.V., M.T. Jackson & A. Santos Guerra, 1982. Beet germplasm in the Canary Islands. Plant Genetic Resources Newsletter 50, 24-27. PDF [2]

Ford-Lloyd, B.V., H.J. Newbury, M.T. Jackson & P.S. Virk, 2001. Genetic basis for co-adaptive gene complexes in rice (Oryza sativa L.) landraces. Heredity 87, 530-536. PDF [24]

Francisco-Ortega, J. & M.T. Jackson, 1992. The use of discriminant function analysis to study diploid and tetraploid cytotypes of Lathyrus pratensis L. (Fabaceae: Faboideae). Acta Botanica Neerlandica 41, 63-73. PDF [4]

Francisco-Ortega, J., M.T. Jackson, J.P. Catty & B.V. Ford-Lloyd, 1992. Genetic diversity in the Chamaecytisus proliferus (L. fil.) Link complex (Fabaceae: Genisteae) in the Canary Islands in relation to in situ conservation. Genetic Resources and Crop Evolution 39, 149-158. PDF [23]

Francisco-Ortega, F.J., M.T. Jackson, A. Santos-Guerra & M. Fernandez-Galvan, 1990. Genetic resources of the fodder legumes tagasaste and escobón (Chamaecytisus proliferus (L. fil.) Link sensu lato) in the Canary Islands. Plant Genetic Resources Newsletter 81/82, 27-32. PDF [15]

Francisco-Ortega, J., M.T. Jackson, A. Santos-Guerra & M. Fernandez-Galvan, 1991. Historical aspects of the origin and distribution of tagasaste (Chamaecytisus proliferus (L. fil.) Link ssp. palmensis (Christ) Kunkel), a fodder tree from the Canary Islands. Journal of the Adelaide Botanical Garden 14, 67-76. PDF [31]

Francisco-Ortega, J., M.T. Jackson, A. Santos-Guerra & B.V. Ford-Lloyd, 1993. Morphological variation in the Chamaecytisus proliferus (L. fil.) Link complex (Fabaceae: Genisteae) in the Canary Islands. Botanical Journal of the Linnean Society 112, 187-202. PDF [9]

Francisco-Ortega, J., M.T. Jackson, A. Santos-Guerra, M. Fernandez-Galvan & B.V. Ford-Lloyd, 1994. The phytogeography of the Chamaecytisus proliferus (L. fil.) Link (Fabaceae: Genisteae) complex in the Canary Islands: a multivariate analysis. Vegetatio 110, 1-17. PDF [11]

Francisco-Ortega, J., M.T. Jackson, A.R. Socorro-Monzon & B.V. Ford-Lloyd, 1992. Ecogeographical characterization of germplasm of tagasaste and escobón (Chamaecytisus proliferus (L. Fil.) Link sensu lato) from the Canary Islands: soil, climatological and geographical features. Investigación Agraria: Producción y Protección Vegetal 7, 377-388. PDF

Gubb, I.R., J.C. Hughes, M.T. Jackson & J.A. Callow, 1989. The lack of enzymic browning in the wild potato species Solanum hjertingii Hawkes compared with commercial Solanum tuberosum varieties. Annals of Applied Biology 114, 579-586. PDF [14]

Jackson, M.T. 1975. The evolutionary significance of the triploid cultivated potato, Solanum x chaucha Juz. et Buk. PhD thesis, University of Birmingham. [10]

Jackson, M.T., J.G. Hawkes & P.R. Rowe, 1977. The nature of Solanum x chaucha Juz. et Buk., a triploid cultivated potato of the South American Andes. Euphytica 26, 775-783. PDF [39]

Jackson, M.T., J.G. Hawkes & P.R. Rowe, 1980. An ethnobotanical field study of primitive potato varieties in Peru. Euphytica 29, 107-113. PDF [58]

Jackson, M.T., P.R. Rowe & J.G. Hawkes, 1978. Crossability relationships of Andean potato varieties of three ploidy levels. Euphytica 27, 541-551. PDF [45]

Jackson, M.T. & A.G. Yunus, 1984. Variation in the grasspea, Lathyrus sativus L. and wild species. Euphytica 33, 549-559. PDF [170]

Juliano, A.B., M.E.B. Naredo & M.T. Jackson, 1998. Taxonomic status of Oryza glumaepatula Steud. I. Comparative morphological studies of New World diploids and Asian AA genome species. Genetic Resources and Crop Evolution 45, 197-203. PDF [40]

Juliano, A.B., M.E.B. Naredo, B.R. Lu & M.T. Jackson, 2005. Genetic differentiation in Oryza meridionalis Ng based on molecular and crossability analyses. Genetic Resources and Crop Evolution 52, 435-445. PDF [18]

Juned, S.A., M.T. Jackson & J.P. Catty, 1988. Diversity in the wild potato species Solanum chacoense Bitt. Euphytica 37, 149-156. PDF [32]

Juned, S.A., M.T. Jackson & B.V. Ford-Lloyd, 1991. Genetic variation in potato cv. Record: evidence from in vitro “regeneration ability”. Annals of Botany 67, 199-203. PDF [3]

Lu, B.R., M.E.B. Naredo, A.B. Juliano & M.T. Jackson, 1997. Hybridization of AA genome rice species from Asia and Australia. II. Meiotic analysis of Oryza meridionalis and its hybrids. Genetic Resources and Crop Evolution 44, 25-31. PDF [26]

Lu, B.R., M.E.B. Naredo, A.B. Juliano & M.T. Jackson, 1998. Taxonomic status of Oryza glumaepatula Steud. III. Assessment of genomic affinity among AA genome species from the New World, Asia, and Australia. Genetic Resources and Crop Evolution 45, 215-223. PDF [25]

Martin, C., A. Juliano, H.J. Newbury, B.R. Lu, M.T. Jackson & B.V. Ford-Lloyd, 1997. The use of RAPD markers to facilitate the identification of Oryza species within a germplasm collection. Genetic Resources and Crop Evolution 44, 175-183. PDF [80]

Naredo, M.E.B., A.B. Juliano, B.R. Lu & M.T. Jackson, 1997. Hybridization of AA genome rice species from Asia and Australia. I. Crosses and development of hybrids. Genetic Resources and Crop Evolution 44, 17-23. PDF [52]

Naredo, M.E.B., A.B. Juliano, B.R. Lu & M.T. Jackson, 1998. Taxonomic status of Oryza glumaepatula Steud. II. Hybridization between New World diploids and AA genome species from Asia and Australia. Genetic Resources and Crop Evolution 45, 205-214. PDF [35]

Naredo, M.E.B., A.B. Juliano, B.R. Lu & M.T. Jackson, 2003. The taxonomic status of the wild rice species Oryza ridleyi Hook. f. and O. longiglumis Jansen (Ser. Ridleyanae Sharma et Shastry) from Southeast Asia. Genetic Resources and Crop Evolution. Genetic Resources and Crop Evolution 50, 477-488. PDF [9]

Parsons, B.J., H.J. Newbury, M.T. Jackson & B.V. Ford-Lloyd, 1997. Contrasting genetic diversity relationships are revealed in rice (Oryza sativa L.) using different marker types. Molecular Breeding 3, 115-125. PDF [217]

Parsons, B., H.J. Newbury, M.T. Jackson & B.V. Ford-Lloyd, 1999. The genetic structure and conservation of aus, aman and boro rices from Bangladesh. Genetic Resources and Crop Evolution 46, 587-598. PDF [57]

Virk, P.S., B.V. Ford-Lloyd, M.T. Jackson & H.J. Newbury, 1995. Use of RAPD for the study of diversity within plant germplasm collections. Heredity 74, 170-179. PDF [383]

Virk, P.S., B.V. Ford-Lloyd, M.T. Jackson, H.S. Pooni, T.P. Clemeno & H.J. Newbury, 1996. Predicting quantitative variation within rice using molecular markers. Heredity 76, 296-304. PDF [233]

Virk, P.S., H.J. Newbury, M.T. Jackson & B.V. Ford-Lloyd, 1995. The identification of duplicate accessions within a rice germplasm collection using RAPD analysis. Theoretical and Applied Genetics 90, 1049-1055. PDF [207]

Virk, P.S., H.J. Newbury, M.T. Jackson & B.V. Ford-Lloyd, 2000. Are mapped markers more useful for assessing genetic diversity? Theoretical and Applied Genetics 100, 607-613. PDF [92]

Virk, P.S., J. Zhu, H.J. Newbury, G.J. Bryan, M.T. Jackson & B.V. Ford-Lloyd, 2000. Effectiveness of different classes of molecular marker for classifying and revealing variation in rice (Oryza sativa) germplasm. Euphytica 112, 275-284. PDF [207]

Williams, J.T., A.M.C. Sanchez & M.T. Jackson, 1974. Studies on lentils and their variation. I. The taxonomy of the species. Sabrao Journal 6, 133-145. PDF [61]

Woodwards, L. & M.T. Jackson, 1985. The lack of enzymic browning in wild potato species, Series Longipedicellata, and their crossability with Solanum tuberosum. Zeitschrift für Pflanzenzüchtung 94, 278-287. PDF [24]

Yunus, A.G. & M.T. Jackson, 1991. The gene pools of the grasspea (Lathyrus sativus L.). Plant Breeding 106, 319-328. PDF [65]

Yunus, A.G., M.T. Jackson & J.P. Catty, 1991. Phenotypic polymorphism of six isozymes in the grasspea (Lathyrus sativus L.). Euphytica 55, 33-42. PDF [36]

Zhu, J., M.D. Gale, S. Quarrie, M.T. Jackson & G.J. Bryan, 1998. AFLP markers for the study of rice biodiversity. Theoretical and Applied Genetics 96, 602-611. PDF [271]

Zhu, J.H., P. Stephenson, D.A. Laurie, W. Li, D. Tang, M.T. Jackson & M.D. Gale, 1999. Towards rice genome scanning by map-based AFLP fingerprinting. Molecular and General Genetics 261, 184-295. PDF [30]

Germplasm conservation
The 14 papers in this section focus primarily on studies we carried out at IRRI to enhance the conservation of rice seeds. It’s interesting to note that new research on seed drying just published by seed physiologist Fiona Hay and colleagues at IRRI has thrown some doubt on the seed drying measures we introduced in the mid-1990s. But there is much more to learn, and after all, that’s the way of science.

People_working_inside_the_International_Rice_Genebank

Appa Rao, S., C. Bounphanouxay, V. Phetpaseut, J.M. Schiller, V. Phannourath & M.T. Jackson, 1997. Collection and preservation of rice germplasm from southern and central regions of the Lao PDR. Lao Journal of Agriculture and Forestry 1, 43-56. PDF [13]

Appa Rao, S., C. Bounphanousay, J.M. Schiller & M.T. Jackson, 2002. Collection, classification, and conservation of cultivated and wild rices of the Lao PDR. Genetic Resources and Crop Evolution 49, 75-81. PDF [48]

Appa Rao, S., C. Bounphanousay, J.M. Schiller & M.T. Jackson, 2002. Naming of traditional rice varieties by farmers in the Lao PDR. Genetic Resources and Crop Evolution 49, 83-88. PDF [67]

Ellis, R.H., T.D. Hong & M.T. Jackson, 1993. Seed production environment, time of harvest, and the potential longevity of seeds of three cultivars of rice (Oryza sativa L.). Annals of Botany 72, 583-590. PDF [166]

Ellis, R.H. & M.T. Jackson, 1995. Accession regeneration in genebanks: seed production environment and the potential longevity of seed accessions. Plant Genetic Resources Newsletter 102, 26-28. PDF [13]

Ford-Lloyd, B.V. & M.T. Jackson, 1991. Biotechnology and methods of conservation of plant genetic resources. Journal of Biotechnology 17, 247-256. PDF [19]

Francisco-Ortega, F.J. & M.T. Jackson, 1993. Conservation strategies for tagasaste and escobón (Chamaecytisus proliferus (L. fil.) Link) in the Canary Islands. Boletim do Museu Municipal do Funchal, Sup. N° 2, 99-105. PDF

Kameswara Rao, N. & M.T. Jackson, 1996. Seed longevity of rice cultivars and strategies for their conservation in genebanks. Annals of Botany 77, 251-260. PDF [79]

Kameswara Rao, N. & M.T. Jackson, 1996. Seed production environment and storage longevity of japonica rices (Oryza sativa L.). Seed Science Research 6, 17-21. PDF [47]

Kameswara Rao, N. & M.T. Jackson, 1996. Effect of sowing date and harvest time on longevity of rice seeds. Seed Science Research 7, 13-20. PDF [31]

Kameswara Rao, N. & M.T. Jackson, 1997. Variation in seed longevity of rice cultivars belonging to different isozyme groups. Genetic Resources and Crop Evolution 44, 159-164. PDF [40]

Kiambi, D.K., B.V. Ford-Lloyd, M.T. Jackson, L. Guarino, N. Maxted & H.J. Newbury, 2005. Collection of wild rice (Oryza L.) in east and southern Africa in response to genetic erosion. Plant Genetic Resources Newsletter 142, 10-20. PDF [23]

Loresto, G.C., E. Guevarra & M.T. Jackson, 2000. Use of conserved rice germplasm. Plant Genetic Resources Newsletter 124, 51-56. PDF [11]

Naredo, M.E.B., A.B. Juliano, B.R. Lu, F. de Guzman & M.T. Jackson, 1998. Responses to seed dormancy-breaking treatments in rice species (Oryza L.). Seed Science and Technology 26, 675-689. PDF [98]

Germplasm evaluation & use
These five papers come from the work of some of my graduate students, looking primarily at the resistance of wild potato species to a range of pests and diseases, especially potato cyst nematode.

OLYMPUS DIGITAL CAMERA

Andrade-Aguilar, J.A. & M.T. Jackson, 1988. Attempts at interspecific hybridization between Phaseolus vulgaris L. and P. acutifolius A. Gray using embryo rescue. Plant Breeding 101, 173-180. PDF [33]

Chávez, R., M.T. Jackson, P.E. Schmiediche & J. Franco, 1988. The importance of wild potato species resistant to the potato cyst nematode, Globodera pallida, pathotypes P4A and P5A, in potato breeding. I. Resistance studies. Euphytica 37, 9-14. PDF [25]

Chávez, R., M.T. Jackson, P.E. Schmiediche & J. Franco, 1988. The importance of wild potato species resistant to the potato cyst nematode, Globodera pallida, pathotypes P4A and P5A, in potato breeding. II. The crossability of resistant species. Euphytica 37, 15-22. PDF [14]

Chávez, R., P.E. Schmiediche, M.T. Jackson & K.V. Raman, 1988. The breeding potential of wild potato species resistant to the potato tuber moth, Phthorimaea operculella (Zeller). Euphytica 39, 123-132. PDF [50]

Jackson, M.T., J.G. Hawkes, B.S. Male-Kayiwa & N.W.M. Wanyera, 1988. The importance of the Bolivian wild potato species in breeding for Globodera pallida resistance. Plant Breeding 101, 261-268. PDF [17]

Plant pathology & agronomy
Just three papers in this section. In the mid-1970s when I was based in Turrialba, I did some important work on bacterial wilt of potatoes.

Jackson, M.T., L.F. Cartín & J.A. Aguilar, 1981. El uso y manejo de fertilizantes en el cultivo de la papa (Solanum tuberosum L.) en Costa Rica. Agronomía Costarricense 5, 15-19. PDF [8]

Jackson, M.T. & L.C. González, 1981. Persistence of Pseudomonas solanacearum (Race 1) in a naturally infested soil in Costa Rica. Phytopathology 71, 690-693. PDF [38]

Jackson, M.T., L.C. González & J.A. Aguilar, 1979. Avances en el combate de la marchitez bacteriana de papa en Costa Rica. Fitopatología 14, 46-53. PDF [8]

Reviews
Hawkes, J.G. & M.T. Jackson, 1992. Taxonomic and evolutionary implications of the Endosperm Balance Number hypothesis in potatoes. Theoretical and Applied Genetics 84, 180-185. PDF [83]

Jackson, M.T., 1986. The potato. The Biologist 33, 161-167. PDF

Jackson, M.T., 1990. Vavilov’s Law of Homologous Series – is it relevant to potatoes? Biological Journal of the Linnean Society 39, 17-25. PDF [4]

Jackson, M.T., 1991. Biotechnology and the environment: a Birmingham perspective. Journal of Biotechnology 17, 195-198. PDF

Jackson, M.T., 1995. Protecting the heritage of rice biodiversity. GeoJournal 35, 267-274. PDF [92]

Jackson, M.T., 1997. Conservation of rice genetic resources—the role of the International Rice Genebank at IRRI. Plant Molecular Biology 35, 61-67. PDF [134]

Techniques
Andrade-Aguilar, J.A. & M.T. Jackson, 1988. The insertion method: a new and efficient technique for intra- and interspecific hybridization in Phaseolus beans. Annual Report of the Bean Improvement Cooperative 31, 218-219. [1]

Damania, A.B., E. Porceddu & M.T. Jackson, 1983. A rapid method for the evaluation of variation in germplasm collections of cereals using polyacrylamide gel electrophoresis. Euphytica 32, 877-883. PDF [51]

Kordan, H.A. & M.T. Jackson, 1972. A simple and rapid permanent squash technique for bulk-stained material. Journal of Microscopy 96, 121-123. PDF [1]

BOOKS
Brian Ford-Lloyd and I wrote one of the first general texts about plant genetic resources and their conservation in 1986. We were also at the forefront in the climate change debate in 1990, and published an update in 2014.

Ford-Lloyd, B.V. & M.T. Jackson, 1986. Plant Genetic Resources – An Introduction to Their Conservation and Use. Edward Arnold, London, p. 146. [212]

Jackson, M., B.V. Ford-Lloyd & M.L. Parry (eds.), 1990. Climatic Change and Plant Genetic Resources. Belhaven Press, London, p. 190. [20]

Engels, J.M.M., V.R. Rao, A.H.D. Brown & M.T. Jackson (eds.), 2002. Managing Plant Genetic Diversity. CAB International, Wallingford, p. 487.

Jackson, M., B. Ford-Lloyd & M. Parry (eds.), 2014. Plant Genetic Resources and Climate Change. CAB International, Wallingford, p. 291. [36]

BOOK CHAPTERS
There are 21 chapters in this section, and they cover a whole range of topics on germplasm conservation and use, among others.

Appa Rao, S., C. Bounphanousay, J.M. Schiller, M.T. Jackson, P. Inthapanya & K. Douangsila. 2006. The aromatic rice of Laos. In: J.M. Schiller, M.B. Chanphengxay, B. Linquist & S. Appa Rao (eds.), Rice in Laos. Los Baños (Philippines): International Rice Research Institute, pp. 159-174. PDF [1]

Appa Rao, S., J.M. Schiller, C. Bounphanousay, A.P. Alcantara & M.T. Jackson. 2006. Naming of traditional rice varieties by the farmers of Laos. In: J.M. Schiller, M.B. Chanphengxay, B. Linquist & S. Appa Rao (eds.), Rice in Laos. Los Baños (Philippines): International Rice Research Institute, pp. 141-158. PDF [6]

Appa Rao, S., J.M. Schiller, C. Bounphanousay, P. Inthapanya & M.T. Jackson. 2006. The colored pericarp (black) rice of Laos. In: J.M. Schiller, M.B. Chanphengxay, B. Linquist & S. Appa Rao (eds.), Rice in Laos. Los Baños (Philippines): International Rice Research Institute, pp. 175-186. PDF [17]

Appa Rao, S., J.M. Schiller, C. Bounphanousay & M.T. Jackson. 2006. Diversity within the traditional rice varieties of Laos. In: J.M. Schiller, M.B. Chanphengxay, B. Linquist & S. Appa Rao (eds.), Rice in Laos. Los Baños (Philippines): International Rice Research Institute, pp. 123-140. PDF [23]

Appa Rao, S., J.M. Schiller, C. Bounphanousay & M.T. Jackson, 2006. Development of traditional rice varieties and on-farm management of varietal diversity in Laos. In: J.M. Schiller, M.B. Chanphengxay, B. Linquist & S. Appa Rao (eds.), Rice in Laos. Los Baños (Philippines): International Rice Research Institute, pp. 187-196. PDF [3]

Bellon, M.R., J.L. Pham & M.T. Jackson, 1997. Genetic conservation: a role for rice farmers. In: N. Maxted, B.V. Ford-Lloyd & J.G. Hawkes (eds.), Plant Genetic Conservation: the In Situ Approach. Chapman & Hall, London, pp. 263-289. PDF [210]

Ford-Lloyd, B., J.M.M. Engels & M. Jackson, 2014. Genetic resources and conservation challenges under the threat of climate change. In: M. Jackson, B. Ford-Lloyd & M. Parry (eds.), Plant Genetic Resources and Climate Change. CAB International, Wallingford, pp. 16-37. [16]

Ford-Lloyd, B.V., M.T. Jackson & H.J. Newbury, 1997. Molecular markers and the management of genetic resources in seed genebanks: a case study of rice. In: J.A. Callow, B.V. Ford-Lloyd & H.J. Newbury (eds.), Biotechnology and Plant Genetic Resources: Conservation and Use. CAB International, Wallingford, pp. 103-118. PDF [50]

Ford-Lloyd, B.V., M.T. Jackson & M.L. Parry, 1990. Can genetic resources cope with global warming? In: M. Jackson, B.V. Ford-Lloyd & M.L. Parry (eds.), Climatic Change and Plant Genetic Resources. Belhaven Press, London, pp. 179-182. PDF [1]

Jackson, M.T., 1983. Potatoes. In: D.H. Janzen (ed.), Costa Rican Natural History. University of Chicago Press, pp. 103-105. PDF

Jackson, M.T., 1985. Plant genetic resources at Birmingham—sixteen years of training. In: K.L. Mehra & S. Sastrapradja (eds.), Proceedings of the International Symposium on South East Asian Plant Genetic Resources, Jakarta, Indonesia, August 20-24, 1985, pp. 35-38.

Jackson, M.T., 1987. Breeding strategies for true potato seed. In: G.J. Jellis & D.E. Richardson (eds.), The Production of New Potato Varieties: Technological Advances. Cambridge University Press, pp. 248-261. PDF [8]

Jackson, M.T., 1992. UK consumption of the potato and its agricultural production. In: Bioresources – Some UK Perspectives. Institute of Biology, London, pp. 34-37.

Jackson, M.T., 1994. Ex situ conservation of plant genetic resources, with special reference to rice. In: G. Prain & C. Bagalanon (eds.), Local Knowledge, Global Science and Plant Genetic Resources: towards a partnership. Proceedings of the International Workshop on Genetic Resources, UPWARD, Los Baños, Philippines, pp. 11-22.

Jackson, M.T., 1999. Managing genetic resources and biotechnology at IRRI’s rice genebank. In: J.I. Cohen (ed.), Managing Agricultural Biotechnology – Addressing Research Program and Policy Implications. International Service for National Agricultural Research (ISNAR), The Hague, Netherlands and CAB International, UK, pp. 102-109. PDF [4]

Jackson, M.T. & B.V. Ford-Lloyd, 1990. Plant genetic resources – a perspective. In: M. Jackson, B.V. Ford-Lloyd & M.L. Parry (eds.), Climatic Change and Plant Genetic Resources. Belhaven Press, London, pp. 1-17. PDF [23]

Jackson, M.T., G.C. Loresto, S. Appa Rao, M. Jones, E. Guimaraes & N.Q. Ng, 1997. Rice. In: D. Fuccillo, L. Sears & P. Stapleton (eds.), Biodiversity in Trust: Conservation and Use of Plant Genetic Resources in CGIAR Centres. Cambridge University Press, pp. 273-291. PDF [18]

Koo, B., P.G. Pardey & M.T. Jackson, 2004. IRRI Genebank. In: B. Koo, P.G. Pardey, B.D. Wright and others, Saving Seeds – The Economics of Conserving Crop Genetic Resources Ex Situ in the Future Harvest Centres of the CGIAR. CABI Publishing, Wallingford, pp. 89-103. PDF [1]

Lu, B.R., M.E.B. Naredo, A.B. Juliano & M.T. Jackson, 2000. Preliminary studies on the taxonomy and biosystematics of the AA genome Oryza species (Poaceae). In: S.W.L. Jacobs & J. Everett (eds.), Grasses: Systematics and Evolution. CSIRO: Melbourne, pp. 51-58. PDF [41]

Pham, J.L., S.R. Morin, L.S. Sebastian, G.A. Abrigo, M.A. Calibo, S.M. Quilloy, L. Hipolito & M.T. Jackson, 2002. Rice, farmers and genebanks: a case study in the Cagayan Valley, Philippines. In: J.M.M. Engels, V.R. Rao, A.H.D. Brown & M.T. Jackson (eds.), Managing Plant Genetic Diversity. CAB International, Wallingford, pp. 149-160. PDF [10]

Vaughan, D.A. & M.T. Jackson, 1995. The core as a guide to the whole collection. In: T. Hodgkin, A.H.D. Brown, Th.J.L. van Hintum & E.A.V. Morales (eds.), Core Collections of Plant Genetic Resources. John Wiley & Sons, Chichester, pp. 229-239. PDF [17]

MISCELLANEOUS PUBLICATIONS
There are 34 publications here, so-called ‘grey literature’ that were not reviewed before publication.

Aggarwal, R.K., D.S. Brar, G.S. Khush & M.T. Jackson, 1996. Oryza schlechteri Pilger has a distinct genome based on molecular analysis. Rice Genetics Newsletter 13, 58-59. [7]

Appa Rao, S., C. Bounphanousay, K. Kanyavong, V. Phetpaseuth, B. Sengthong, J.M. Schiller, S. Thirasack & M.T. Jackson, 1997. Collection and classification of rice germplasm from the Lao PDR. Part 2. Northern, Southern and Central Regions. Internal report of the National Agricultural Research Center, Department of Agriculture and Extension, Ministry of Agriculture and Forestry, Vientiane, Lao PDR, and Genetic Resources Center, International Rice Research Institute (IRRI), Los Baños, Philippines.

Appa Rao, S., C. Bounphanousay, K. Kanyavong, B. Sengthong, J.M. Schiller & M.T. Jackson, 1999. Collection and classification of Lao rice germplasm, Part 4. Collection Period: September to December 1998. Internal report of the National Agricultural Research Center, National Agriculture and Forestry Research Institute, Ministry of Agriculture and Forestry, Vientiane, Lao PDR, and Genetic Resources Center, International Rice Research Institute (IRRI), Los Baños, Philippines.

Appa Rao, S., C. Bounphanousay, V. Phetpaseuth, K. Kanyavong, B. Sengthong, J.M. Schiller & M.T. Jackson, 1998. Collection and Classification of Lao Rice Germplasm Part 3. Collecting Period – October 1997 to February 1998. Internal report of the National Agricultural Research Center, National Agriculture and Forestry Research Institute, Ministry of Agriculture and Forestry, Vientiane, Lao PDR, and Genetic Resources Center, International Rice Research Institute (IRRI), Los Baños, Philippines.

Appa Rao, S., C. Bounphanousay, V. Phetpaseuth, K. Kanyavong, B. Sengthong, J. M. Schiller, V. Phannourath & M.T. Jackson, 1996. Collection and classification of rice germplasm from the Lao PDR. Part 1. Southern and Central Regions – 1995. Internal report of the National Agricultural Research Center, Dept. of Agriculture and Extension, Ministry of Agriculture and Forestry, Vientiane, Lao PDR, and Genetic Resources Center, International Rice Research Institute (IRRI), Los Baños, Philippines.

Appa Rao, S,. V. Phetpaseut, C. Bounphanousay & M.T. Jackson, 1997. Spontaneous interspecific hybrids in Oryza in Lao PDR. International Rice Research Notes 22, 4-5. [1]

Arnold, M.H., D. Astley, E.A. Bell, J.K.A. Bleasdale, A.H. Bunting, J. Burley, J.A. Callow, J.P. Cooper, P.R. Day, R.H. Ellis, B.V. Ford-Lloyd, R.J. Giles, J.G. Hawkes, J.D. Hayes, G.G. Henshaw, J. Heslop-Harrison, V.H. Heywood, N.L. Innes, M.T. Jackson, G. Jenkins, M.J. Lawrence, R.N. Lester, P. Matthews, P.M. Mumford, E.H. Roberts, N.W. Simmonds, J. Smartt, R.D. Smith, B. Tyler, R. Watkins, T.C. Whitmore & L.A. Withers, 1986. Plant gene conservation. Nature 319, 615. [10]

Cohen, M.B., M.T. Jackson, B.R. Lu, S.R. Morin, A.M. Mortimer, J.L. Pham & L.J. Wade, 1999. Predicting the environmental impact of transgene outcrossing to wild and weedy rices in Asia. In: 1999 PCPC Symposium Proceedings No. 72: Gene flow and agriculture: relevance for transgenic crops. Proceedings of a Symposium held at the University of Keele, Staffordshire, U.K., April 12-14, 1999. pp. 151-157. [15]

Damania, A.B. & M.T. Jackson, 1986. An application of factor analysis to morphological data of wheat and barley landraces from the Bheri river valley, Nepal. Rachis 5, 25-30. [24]

Dao The Tuan, Nguyen Dang Khoi, Luu Ngoc Trinh, Nguyen Phung Ha, Nguyen Vu Trong, D.A. Vaughan & M.T. Jackson, 1995. INSA-IRRI collaboration on wild rice collection in Vietnam. In: G.L. Denning & Vo-Tong Xuan (eds.), Vietnam and IRRI: A partnership in rice research. International Rice Research Institute, Los Baños, Philippines, and Ministry of Agriculture and Food Industry, Hanoi, Vietnam, pp. 85-88.

Ford-Lloyd, B.V. & M.T. Jackson, 1984. Plant gene banks at risk. Nature 308, 683. [1]

Ford-Lloyd, B.V. & M.T. Jackson, 1990. Genetic resources refresher course embraces biotech. Biotechnology News No. 19, 7. University of Birmingham Biotechnology Management Group.

Jackson, M.T. (ed.), 1980. Investigación Agroeconómica para Optimizar la Productividad de la Papa. International Potato Center, Lima, Peru. Proceedings of the Regional Workshop held at Turrialba, Costa Rica, August 19-25, 1979.

Jackson, M.T., 1988. Biotechnology and the environment. Biotechnology News No. 15, 2. University of Birmingham Biotechnology Management Group.

Jackson, M.T., 1991. Global warming: the case for European cooperation for germplasm conservation and use. In: Th.J.L. van Hintum, L. Frese & P.M. Perret (eds.), Crop Networks. Searching for New Concepts for Collaborative Genetic Resources Management. International Crop Network Series No. 4. International Board for Plant Genetic Resources, Rome, Italy. Papers of the EUCARPIA/IBPGR symposium held in Wageningen, the Netherlands, December 3-6, 1990., pp. 125-131. PDF

Jackson, M.T., 1994. Preservation of rice strains. Nature 371, 470. [23]

Jackson, M.T. & J.A. Aguilar, 1979. Progresos en la adaptación de la papa a zonas cálidas. Memoria XXV Reunión PCCMCA, Honduras, Marzo 1979, Vol. IV, H16/1-10.

Jackson, M.T. & B.V. Ford-Lloyd, 1989. University of Birmingham holds international workshop on climate change and plant genetic resources. Diversity 5, 22-23.

Jackson, M.T. & B.V. Ford-Lloyd, 1990. University of Birmingham celebrates 20th anniversary of germplasm training course. Diversity 6, 11-12.

Jackson, M.T. & R.D. Huggan, 1993. Sharing the diversity of rice to feed the world. Diversity 9, 22-25. [45]

Jackson, M.T. & R.D. Huggan, 1996. Pflanzenvielfalt als Grundlage der Welternährung. Bulletin—das magazin der Schweizerische Kreditanstalt SKA. March/April 1996, 9-10.

Jackson, M.T., E.L. Javier & C.G. McLaren, 2000. Rice genetic resources for food security: four decades of sharing and use. In: W.G. Padolina (ed.), Plant Variety Protection for Rice in Developing Countries. Limited proceedings of the workshop on the Impact of Sui Generis Approaches to Plant Variety Protection in Developing Countries. February 16-18, 2000, IRRI, Los Baños, Philippines. International Rice Research Institute, Makati City, Philippines. pp. 3-8.

Jackson, M.T. & R.J.L. Lettington, 2003. Conservation and use of rice germplasm: an evolving paradigm under the International Treaty on Plant Genetic Resources for Food and Agriculture. In: Sustainable rice production for food security. Proceedings of the 20th Session of the International Rice Commission. Bangkok, Thailand, 23-26 July 2002.
http://www.fao.org/DOCREP/006/Y4751E/y4751e07.htm#bm07. Invited paper. PDF [24]

Jackson, M.T., G.C. Loresto & A.P. Alcantara, 1993. The International Rice Germplasm Center at IRRI. In: The Egyptian Society of Plant Breeding (1993). Crop Genetic Resources in Egypt: Present Status and Future Prospects. Papers of an ESPB Workshop, Giza, Egypt, March 2-3, 1992.

Jackson, M.T., J.L. Pham, H.J. Newbury, B.V. Ford-Lloyd & P.S. Virk, 1999. A core collection for rice—needs, opportunities and constraints. In: R.C. Johnson & T. Hodgkin (eds.), Core collections for today and tomorrow. International Plant Genetic Resources Institute, Rome, Italy, pp. 18-27. [25]

Jackson, M.T., L. Taylor & A.J. Thomson, 1985. Inbreeding and true potato seed production. In: Innovative Methods for Propagating Potatoes. Report of the XXVIII Planning Conference held at Lima, Peru, December 10-14, 1984, pp. 169-179. PDF [10]

Loresto, G.C. & M.T. Jackson, 1992. Rice germplasm conservation: a program of international collaboration. In: F. Cuevas-Pérez (ed.), Rice in Latin America: Improvement, Management, and Marketing. Proceedings of the VIII international rice conference for Latin America and the Caribbean, held in Villahermosa, Tabasco, Mexico, November 10-16, 1991. Centro Internacional de Agricultura Tropical, Cali, Colombia, pp. 61-65.

Loresto, G.C. & M.T. Jackson, 1996. South Asia partnerships forged to conserve rice genetic resources. Diversity 12, 60-61. [3]

Morin, S.R., J.L. Pham, M. Calibo, G. Abrigo, D. Erasga, M. Garcia, & M.T. Jackson, 1998. On farm conservation research: assessing rice diversity and indigenous technical knowledge. Invited paper presented at the Workshop on Participatory Plant Breeding, held in New Delhi, March 23-24, 1998.

Morin, S.R., J.L. Pham, M. Calibo, M. Garcia & M.T. Jackson, 1998. Catastrophes and genetic diversity: creating a model of interaction between genebanks and farmers. Paper presented at the FAO meeting on the Global Plan of Action on Plant Genetic Resources for Food and Agriculture for the Asia-Pacific Region, held in Manila, Philippines, December 15-18, 1998.

Newbury, H.J., B.V. Ford-Lloyd, P.S. Virk, M.T. Jackson, M.D. Gale & J.-H. Zhu, 1996. Molecular markers and their use in organising plant germplasm collections. In: E.M. Young (ed.), Plant Sciences Research Programme Conference on Semi-Arid Systems. Proceedings of an ODA Plant Sciences Research Programme Conference , Manchester, UK, September 5-6, 1995, pp. 24-25.

Pham, J.L., M.R. Bellon & M.T. Jackson, 1996. A research program for on-farm conservation of rice genetic resources. International Rice Research Notes 21, 10-11. [8]

Pham, J.L., M.R. Bellon & M.T. Jackson, 1996. What is on-farm conservation research on rice genetic resources? In: J.T. Williams, C.H. Lamoureux & S.D. Sastrapradja (eds.), South East Asian Plant Genetic Resources. Proceedings of the Third South East Asian Regional Symposium on Genetic Resources, Serpong, Indonesia, August 22-24, 1995, pp. 54-65.

Rao, S.A, M.T. Jackson, V Phetpaseuth & C. Bounphanousay, 1997. Spontaneous interspecific hybrids in Oryza in the Lao PDR. International Rice Research Notes 22, 4-5. [5]

Virk, P.S., B.V. Ford-Lloyd, M.T. Jackson, H.S. Pooni, T.P. Clemeno & H.J. Newbury, 1996. Marker-assisted prediction of agronomic traits using diverse rice germplasm. In: International Rice Research Institute, Rice Genetics III. Proceedings of the Third International Rice Genetics Symposium, Manila, Philippines, October 16-20, 1995, pp. 307-316. [25]

CONFERENCE PAPERS AND POSTERS
Over the years I had the good fortune to attend scientific conferences around the world—a great opportunity to hear about the latest developments in one’s field of research, and also to network. For some conferences I contributed a paper or poster; at others, I was an invited speaker.

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Alcantara, A.P., E.B. Guevarra & M.T. Jackson, 1999. The International Rice Genebank Collection Information System. Poster presented at the annual meeting of the Crop Science Society of America, Salt Lake City, October 31-November 4, 1999.

Appa Rao, S., C. Bounphanouxay, J.M. Schiller & M.T. Jackson, 1999. Collecting Rice Genetic Resources in the Lao PDR. Poster presented at the annual meeting of the Crop Science Society of America, Salt Lake City, October 31-November 4, 1999.

Cabanilla, V.R., M.T. Jackson & T.R. Hargrove, 1993. Tracing the ancestry of rice varieties. Poster presented at the 17th International Congress of Genetics, Birmingham, U.K., August 15-21, 1993. Volume of abstracts, 112-113.

Clugston, D.B. & M.T. Jackson, 1987. The application of embryo rescue techniques for the utilization of wild species in potato breeding. Paper presented at the Plant Breeding Section meeting of the Association of Applied Biologists, held at Churchill College, University of Cambridge, April 14-15, 1987.

Coleman, M., M. Jackson, S. Juned, B. Ford-Lloyd, J. Vessey & W. Powell, 1990. Interclonal genetic variability for in vitro response in Solanum tuberosum cv. Record. Paper presented at the 11th Triennial Conference of the European Association for Potato Research, Edinburgh, July 8-13, 1990.

Francisco-Ortega, F.J., M.T. Jackson, A. Santos-Guerra & M. Fernandez-Galvan, 1990. Ecogeographical variation in the Chamaecytisus proliferus complex in the Canary Islands. Paper presented at the Linnean Society Conference on Evolution and Conservation in the North Atlantic Islands, held at the Manchester Polytechnic, September 3-6, 1990.

Gubb, I.R., J.A. Callow, R.M. Faulks & M.T. Jackson, 1989. The biochemical basis for the lack of enzymic browning in the wild potato species Solanum hjertingii Hawkes. Am. Potato J. 66, 522 (abst.). Paper presented at the 73rd Annual Meeting of the Potato Association of America, Corvalis, Oregon, July 30 – August 3, 1989.

Hunt, E.D., M.T. Jackson, M. Oliva & A. Alcantara, 1993. Employing geographical information systems (GIS) for conserving and using rice germplasm. Poster presented at the 17th International Congress of Genetics, Birmingham, U.K., August 15-21, 1993. Volume of abstracts, 117.

Jackson, M.T., 1984. Variation patterns in Lathyrus sativus. Paper presented at the Second International Workshop on the Vicieae, held at the University of Southampton, February 15-16, 1984.

Jackson, M.T., 1993. Biotechnology and the conservation and use of plant genetic resources. Invited paper presented at the Workshop on Biotechnology in Developing Countries, held at the 17th International Congress of Genetics, Birmingham, U.K., August 15-21, 1993.

Jackson, M.T., 1994. Care for and use of biodiversity in rice. Invited paper presented at the Symposium on Food Security in Asia, held at the Royal Society, London, November 1, 1994.

Jackson, M.T., 1995. The international crop germplasm collections: seeds in the bank! Invited paper presented at the meeting Economic and Policy Research for Genetic Resources Conservation and Use: a Technical Consultation, held at IFPRI, Washington, D.C., June 21-22, 1995

Jackson, M.T., 1996. Intellectual property rights—the approach of the International Rice Research Institute. Invited paper presented at the Satellite Symposium on Biotechnology and Biodiversity: Scientific and Ethical Issues, held in New Delhi, India, November 15-16, 1996.

Jackson, M.T., 1999. Managing the world’s largest collection of rice genetic resources. In: J.N. Rutger, J.F. Robinson & R.H. Dilday (eds.), Proceedings of the International Symposium on Rice Germplasm Evaluation and Enhancement, held at the Dale Bumpers National Rice Research Center, Stuttgart, Arkansas, USA, August 30-September 2, 1998. Arkansas Agricultural Experiment Station Special Report 195. PDF [13]

Jackson, M.T., 1998. Intellectual property rights—the approach of the International Rice Research Institute. Invited paper at the Seminar-Workshop on Plant Patents in Asia Pacific, organized by the Asia & Pacific Seed Association (APSA), held in Manila, Philippines, September 21-22, 1998.

Jackson, M.T., 1998. Recent developments in IPR that have implications for the CGIAR. Invited paper presented at the ICLARM Science Day, International Center for Living Aquatic Resources Management, Manila, Philippines, September 30, 1998.

Jackson, M.T., 1998. The genetics of genetic conservation. Invited paper presented at the Fifth National Genetics Symposium, held at PhilRice, Nueva Ecija, Philippines, December 10-12, 1998.

Jackson, M.T., 1998. The role of the CGIAR’s System-wide Genetic Resources Programme (SGRP) in implementing the GPA. Invited paper presented at the Regional Meeting for Asia and the Pacific to facilitate and promote the implementation of the Global Plan of Action for the Conservation and Sustainable Use of Plant Genetic Resources for Food and Agriculture, held in Manila, Philippines, December 15-18, 1998.

Jackson, M.T., 2001. Collecting plant genetic resources: partnership or biopiracy. Invited paper presented at the annual meeting of the Crop Science Society of America, Charlotte, North Carolina, October 21-24, 2001.

Jackson, M.T., 2004. Achieving the UN Millennium Development Goals begins with rice research. Invited paper presented to the Cross Party International Development Group of the Scottish Parliament, Edinburgh, Scotland, June 2, 2004.

Jackson, M.T., 2001. Rice: diversity and livelihood for farmers in Asia. Invited paper presented in the symposium Cultural Heritage and Biodiversity, at the annual meeting of the Crop Science Society of America, Charlotte, North Carolina, October 21-24, 2001.

Jackson, M.T., A. Alcantara, E. Guevarra, M. Oliva, M. van den Berg, S. Erguiza, R. Gallego & M. Estor, 1995. Documentation and data management for rice genetic resources at IRRI. Paper presented at the Planning Meeting for the System-wide Information Network for Genetic Resources (SINGER), held at CIMMYT, Mexico, October 2-6, 1995.

Jackson, M.T. & L.C. González, 1979. Persistence of Pseudomonas solanacearum in an inceptisol in  Costa Rica. In: CIP, Developments in the Control of Bacterial Diseases of Potato. Report of a Planning Conference held at CIP, LIma, Peru, 12-15 June 1979. pp. 66-71. [4]

Jackson, M.T. & L.C. González, 1979. Persistence of Pseudomonas solanacearum in an inceptisol in Costa Rica. Am. Potato J. 56, 467 (abst.). Paper presented at the 63rd Annual meeting of the Potato Association of America, Vancouver, British Columbia, July 22-27, 1979.

Jackson, M.T., F.C. de Guzman, R.A. Reaño, M.S.R. Almazan, A.P. Alcantara & E.B. Guevarra, 1999. Managing the world’s largest collection of rice genetic resources. Poster presented at the annual meeting of the Crop Science Society of America, Salt Lake City, October 31-November 4, 1999.

Jackson, M.T., E.L. Javier & C.G. McLaren, 1999. Rice genetic resources for food security. Invited paper at the IRRI Symposium, held at the annual meeting of the Crop Science Society of America, Salt Lake City, October 31-November 4, 1999.

Jackson, M.T. & G.C. Loresto, 1996. The role of the International Rice Research Institute (IRRI) in supporting national and regional programs. Invited paper presented at the Asia-Pacific Consultation Meeting on Plant Genetic Resources, held in New Delhi, India, November 27-29, 1996.

Jackson, M.T., G.C. Loresto & F. de Guzman, 1996. Partnership for genetic conservation and use: the International Rice Genebank at the International Rice Research Institute (IRRI). Poster presented at the Beltsville Symposium XXI on Global Genetic Resources—Access, Ownership, and Intellectual Property Rights, held in Beltsville, Maryland, May 19-22, 1996.

Jackson, M.T., B.R. Lu, G.C. Loresto & F. de Guzman, 1995. The conservation of rice genetic resources at the International Rice Research Institute. Paper presented at the International Symposium on Research and Utilization of Crop Germplasm Resources held in Beijing, People’s Republic of China, June 1-3, 1995.

Jackson, M.T., B.R. Lu, M.S. Almazan, M.E. Naredo & A.B. Juliano, 2000. The wild species of rice: conservation and value for rice improvement. Poster presented at the annual meeting of the Crop Science Society of America, Minneapolis, November 5-9, 2000.

Jackson, M.T., P.R. Rowe & J.G. Hawkes, 1976. The enigma of triploid potatoes: a reappraisal. Am. Potato J. 53, 395 (abst.). Paper presented at the 60th Annual meeting of the Potato Association of America, University of Wisconsin—Stevens Point, July 26-29, 1976. [4]

Kameswara Rao, N. & M.T. Jackson, 1995. Seed production strategies for conservation of rice genetic resources. Poster presented at the Fifth International Workshop on Seeds, University of Reading, September 11-15, 1995.

Lu, B.R., A. Juliano, E. Naredo & M.T. Jackson, 1995. The conservation and study of wild Oryza species at the International Rice Research Institute. Paper presented at the International Symposium on Research and Utilization of Crop Germplasm Resources held in Beijing, People’s Republic of China, June 1-3, 1995.

Lu, B.R., M.E. Naredo, A.B. Juliano & M.T. Jackson, 1998. Biosystematic studies of the AA genome Oryza species (Poaceae). Poster presented at the Second International Conference on the Comparative Biology of the Monocotyledons and Third International Symposium on Grass Systematics and Evolution, Sydney, Australia, September 27-October 2, 1998.

Lu, B.R., M.E.B. Naredo, A.B. Juliano & M.T. Jackson, 2008. Genomic relationships of the AA genome Oryza species. In: G.S. Khush, D.S. Brar & B. Hardy (eds), Advances in Rice Genetics, Proceedings of the Fourth International Rice Genetics Symposium, Los Baños, Laguna, Philippines, 22-27 October 2000. pp. 118-121. [2]

Naredo, M.E., A.B. Juliano, M.S. Almazan, B.R. Lu & M.T. Jackson, 2000. Morphological and molecular diversity of AA genome species of rice. Poster presented at the annual meeting of the Crop Science Society of America, Minneapolis, November 5-9, 2000.

Newbury, H.J., P. Virk, M.T. Jackson, G. Bryan, M. Gale & B.V. Ford-Lloyd, 1993. Molecular markers and the analysis of diversity in rice. Poster presented at the 17th International Congress of Genetics, Birmingham, U.K., August 15-21, 1993. Volume of abstracts, 121-122.

Newton, E.L., R.A.C. Jones & M.T. Jackson, 1986. The serological detection of viruses of quarantine significance transmitted through true potato seed. Paper presented at the Virology Section meeting of the Association of Applied Biologists, held at the University of Warwick, September 29 – October 1, 1986.

Parsons, B.J., B.V. Ford-Lloyd, H.J. Newbury & M.T. Jackson, 1994. Use of PCR-based markers to assess genetic diversity in rice landraces from Bhutan and Bangladesh. Poster presented at the Annual Meeting of the British Ecological Society, held at The University of Birmingham, December 1994.

Pham, J.L., M.R. Bellon & M.T. Jackson, 1995. A research program on on-farm conservation of rice genetic resources. Poster presented at the Third International Rice Genetics Symposium, Manila, Philippines, October 16-20, 1995.

Pham J.L., S.R. Morin & M.T. Jackson, 2000. Linking genebanks and participatory conservation and management. Invited paper presented at the International Symposium on The Scientific Basis of Participatory Plant Breeding and Conservation of Genetic Resources, held at Oaxtepec, Morelos, Mexico, October 9-12, 2000.

Reaño, R., M.T. Jackson, F. de Guzman, S. Almazan & G.C. Loresto, 1995. The multiplication and regeneration of rice germplasm at the International Rice Genebank, IRRI. Paper presented at the Discussion Meeting on Regeneration Standards, held at ICRISAT, Hyderabad, India, December 4-7, 1995, sponsored by IPGRI, ICRISAT and FAO. [1]

Virk, P., B.V. Ford-Lloyd, M.T. Jackson & H.J. Newbury, 1994. The use of RAPD analysis for assessing diversity within rice germplasm. Paper presented at the Annual Meeting of the British Ecological Society, held at The University of Birmingham, December 1994.

Virk, P.S., H.J. Newbury, Y. Shen, M.T. Jackson & B.V. Ford-Lloyd, 1996. Prediction of agronomic traits in diverse germplasm of rice and beet using molecular markers. Paper presented at the Fourth International Plant Genome Conference, held in San Diego, California, January 14-18, 1996.

Watanabe, K., C. Arbizu, P. Schmiediche & M.T. Jackson, 1990. Germplasm enhancement methods for disomic tetraploid species of Solanum with special reference to S. acaule. Am. Potato J. 67, 586 (abst.). Paper presented at the 74th Annual meeting of the Potato Association of America, Quebec City, Canada, July 22-26, 1990. [4]

TECHNICAL PUBLICATIONS
Bryan, J.E., M.T. Jackson & N. Melendez, 1981. Rapid Multiplication Techniques for Potatoes. International Potato Center, Lima, Peru. PDF

Bryan, J.E., M.T. Jackson, M. Quevedo & N. Melendez, 1981. Single-Node Cuttings, a Rapid Multiplication Technique for Potatoes. CIP Slide Training Series, Guide Book I/2. International Potato Center, Lima, Peru. [25]

Bryan, J.E., N. Melendez & M.T. Jackson, 1981. Sprout Cuttings, a Rapid Multiplication Technique for Potatoes. CIP Slide Training Series, Guide Book I/1. International Potato Center, Lima, Peru. [2]

Bryan, J.E., N. Melendez & M.T. Jackson, 1981. Stem Cuttings, a Rapid Multiplication Technique for Potatoes. CIP Slide Training Series, Guide Book I/3. International Potato Center, Lima, Peru. [63]

Catty, J.P. & M.T. Jackson, 1989. Starch Gel Electrophoresis of Isozymes – A Laboratory Manual, Second edition. School of Biological Sciences, University of Birmingham.

Quevedo, M., J.E. Bryan, M.T. Jackson & N. Melendez, 1981. Leaf-Bud Cuttings, a Rapid Multiplication Technique for Potatoes. CIP Slide Training Series – Guide Book I/4. International Potato Center, Lima, Peru. [2]

BOOK REVIEWS
Jackson, M.T., 1983. Outlook on Agriculture 12, 205. Dictionary of Cultivated Plants and Their Regions of Diversity, by A.C. Zeven & J.M.J. de Wet, 1982. Pudoc, Wageningen.

Jackson, M.T., 1985. Outlook on Agriculture 14, 50. 1983 Rice Germplasm Conservation Workshop. IRRI and IBPGR, 1983. Manila.

Jackson, M.T., 1986. Journal of Applied Ecology 23, 726-727. The Value of Conserving Genetic Resources, by Margery L. Oldfield, 1984. US Dept. of the Interior, Washington, DC.

Jackson, M.T., 1989. Phytochemistry 28, 1783. World Crops: Cool Season Food Legumes, edit. by R.J. Summerfield, 1988. Martinus Nijhoff Publ.

Jackson, M.T., 1989. Plant, Cell & Environment 12, 589-590. Genetic Resources of Phaseolus Beans, edit. by P. Gepts, 1988. Martinus Nijhoff Publ.

Jackson, M.T., 1989. Heredity 64, 430-431. Genetic Resources of Phaseolus Beans, edit. by P. Gepts, 1988. Martinus Nijhoff Publ.

Jackson, M.T., 1989. Botanical Journal of the Linnean Society 102, 88-91. Seeds and Sovereignty, edit. by J.R. Kloppenburg, 1988. Duke University Press.

Jackson, M.T., 1989. Botanical Journal of the Linnean Society 100, 285-286. Conserving the Wild Relatives of Crops, by E. Hoyt, 1988. IBPGR/IUCN/WWF.

Jackson, M.T., 1989. Annals of Botany 64, 606-608. The Potatoes of Bolivia – Their Breeding Value and Evolutionary Relationships, by J.G. Hawkes & J.P. Hjerting, Oxford Scientific Publications.

Jackson, M.T., 1991. Botanical Journal of the Linnean Society 107, 102-104. Grain Legumes – Evolution and Genetic Resources, by J. Smartt, 1990, Cambridge University Press.

Jackson, M.T., 1991. Botanical Journal of the Linnean Society 107, 104-107. Plant Population Genetics, Breeding, and Genetic Resources, edit. by A.H.D. Brown, M.T. Clegg, A.L. Kahler & B.S. Weir, 1990, Sinauer Associates Inc.

Jackson, M.T., 1991. Field Crops Research 26, 77-79. The Use of Plant Genetic Resources, ed. by A.H.D. Brown, O.H. Frankel, D.R. Marshall & J.T. Williams, 1989, Cambridge University Press.

Jackson, M.T., 1991. Annals of Botany 67, 367-368. Isozymes in Plant Biology, edit. by D.E. Soltis & P.S. Soltis, 1990, Chapman and Hall.

Jackson, M.T., 1991. The Biologist 38, 154-155. The Molecular and Cellular Biology of the Potato, edit. by M.E. Vayda & W.D. Park, 1990, C.A.B. International.

Jackson, M.T., 1992. Diversity 8, 36-37. Biotechnology and the Future of World Agriculture, by H. Hobbelink, 1991, Zed Books Ltd.

Jackson, M.T., 1997. Experimental Agriculture 33, 386. Biodiversity and Agricultural Intensification: Partners for Development and Conservation, edit. by J.P. Srivastava, N.J.H. Smith & D.A. Forno, 1996. Environmentally Sustainable Development Studies and Monographs Series No. 11, The World Bank, Washington, D.C.

Jackson, M.T., 2001. Annals of Botany 88, 332-333. Broadening the genetic base of crop production, edit. By Cooper H.D., C. Spillane & T. Hodgkin, 2001. Wallingford: CAB International with FAO and IPGRI, Rome.

CONSULTANCY REPORT
CGIAR-IEA, 2017. Evaluation of CGIAR research support program for Managing and Sustaining Crop Collections. Rome, Italy: Independent Evaluation Arrangement (IEA) of CGIAR. Authored by M.T. Jackson, M.J. Borja Tome & B.V. Ford-Lloyd. [2]

OBITUARIES

Jackson, M.T., 2011. John Gregory Hawkes (1915–2007).Oxford Dictionary of National Biography, Oxford University Press. doi:10.1093/ref:odnb/99090. PDF

Jackson, M.T., 2013. Dr. Joseph Smartt (1931-2013). Genetic Resources and Crop Evolution 60, 1921-1922. PDF

Jackson, M.T. & N. Murthi Anishetty, 2015. John Trevor Williams (1938 – 2015). Indian Journal of Plant Genetic Resources 28, 161-162. PDF

Jackson, M.T., 2015. J Trevor Williams (1938–2015): IBPGR director and genetic conservation pioneer. Genetic Resources and Crop Evolution 62, 809–813. PDF

Don’t put all your eggs in one basket . . . or your seeds in a single genebank

On 20 May 2015, a long article was published in The Guardian about the Svalbard Global Seed Vault (SGSV), popularly—and rather unfortunately—known as the ‘Doomsday Vault’. I’ve recently been guilty of using that moniker simply because that’s how the vault has come to be known, rightly or wrongly, in the media.

Authored by US-based environment correspondent of The Guardian, Suzanne Goldenberg, the article had the headline grabbing title: The doomsday vault: the seeds that could save a post-apocalyptic world.

You get a flavor of what’s in store, however, from the very first paragraph. Goldenberg writes: ‘One Tuesday last winter, in the town nearest to the North Pole, Robert Bjerke turned up for work at his regular hour and looked at the computer monitor on his desk to discover, or so it seemed for a few horrible moments, that the future of human civilisation was in jeopardy.’

Turns out there was a relatively minor glitch in one of the supplementary cooling systems of this seed repository under the Arctic permafrost where millions of seeds of the world’s most important food staples and other species are being stored, duplicating the germplasm conservation efforts of the genebanks from which they were sent. Hardly the stuff of Apocalypse Now. So while making a favorable case for the need to store seeds in a genebank like the Svalbard vault, Goldenberg ends her introduction with this somewhat controversial statement: ‘Seed banks are vulnerable to near-misses and mishaps. That was the whole point of locating a disaster-proof back-up vault at Svalbard. But what if there was a bigger glitch – one that could not be fixed by borrowing a part from the local shop? There is now a growing body of opinion that the world’s faith, in Svalbard and the Crop Trust’s broader mission to create seed banks, is misplaced. [The emphasis in bold is mine.] Those who have worked with farmers in the field, especially in developing countries, which contain by far the greatest variety of plants, say that diversity cannot be boxed up and saved in a single container—no matter how secure it may be. Crops are always changing, pests and diseases are always adapting, and global warming will bring additional challenges that remain as yet unforeseen. In a perfect world, the solution would be as diverse and dynamic as plant life itself.’ 

I have several concerns about the article—and the many comments it elicited that stem, unfortunately, from lack of understanding on the one hand and ignorance and prejudice on the other.

  • Goldenberg gives the impression that it’s an either/or situation of ex situ conservation in a genebank versus in situ conservation in farmers’ fields or natural environments (in the case of crop wild relatives).
  • There is a perception apparently held by some that the development of the SGSV has been detrimental to the cause of in situ conservation of crop wild relatives.
  • Because there is no research or use of the germplasm stored in the SGSV, then it only has an ‘existence value’. Of course this does not take into account the research on and use of the same germplasm in the genebanks from which it was sent to Svalbard. Therefore Svalbard by its very nature is assumed to be very expensive.
  • The role of Svalbard as a back-up to other genebank efforts is not emphasized sufficiently. As many genebanks do not have adequate access to long-term conservation facilities, the SGSV is an important support at no cost directly to those genebanks as far as I am aware. However, Svalbard can never be a panacea. If seeds of poor quality (i.e less than optimum viability) are stored in the vault then they will deteriorate faster than good seeds. As the saying goes: ‘Junk in, junk out’.
  • The NGO perspective is interesting. It seems it’s hard for some of our NGO colleagues to accept that use of germplasm stored in genebanks actually does benefit farmers.Take for example the case of submergence tolerant rice, now being grown by farmers in Bangladesh and other countries on land where a consistent harvest was almost unheard of before. Or the cases where farmers have lost varieties due to natural disasters but have had them replaced because they were in a genebank. My own experience in the Cagayan valley in the northern Philippines highlights this very well after a major typhoon in the late 1990s devastated the rice agriculture of that area. See the section about on farm management of rice germplasm in this earlier post. They also still harbour a concern that seeds in genebanks are at the mercy of being expropriated by multinationals. In the comments, Monsanto was referred to many times, as was the issue of GMOs. I addressed this in the comment I contributed.

I added this comment that same day on The Guardian web site:
‘For a decade during the 1990s I managed one of the world’s largest and most important genebanks – the International Rice Genebank at the International Rice Research Institute (IRRI) in the Philippines. Large, because it holds over 116,000 samples of cultivated varieties and wild species of rice. And important, because rice is the most important food staple feeding half the world’s population several times daily.

The Svalbard Global Seed Vault (SGSV), the so-called ‘Doomsday Vault’ in Spitsbergen, holds on behalf of IRRI an almost complete duplicate set of samples (called ‘accessions’), in case something should happen to the genebank in Los Baños, south of Manila. I should add that for decades the USDA has also held a duplicate set in its genebank at Fort Collins in Colorado, under exactly the same ‘black box’ terms as the SGSV.

Germplasm is conserved so that it can be studied and used in plant breeding to enhance the productivity of the rice crop, to increase its resilience in the face of climate change, or to meet the challenge of new strains of diseases and pests. The application of molecular biology is unlocking the mysteries of this enormous genetic diversity, making it accessible for use in rice improvement much more efficiently than in past decades.

Many genebanks round the world and the collections they manage do not have access to long-term and safe storage facilities. This is where the SGSV plays an important role. Genebanks can be at risk from a whole range of natural threats (earthquakes, typhoons, volcanic eruptions, etc.) or man-made threats: conflicts, lack of resources, and inadequate management that can lead to fires, flooding, etc. Just take the example of the International Rice Genebank. The Philippines are subject to the natural threats mentioned, but the genebank was designed and built to withstand these. The example of the ICARDA genebank in Aleppo highlights the threat to these facilities from being located in a conflict zone.

To understand more about what it means to conserve a crop like rice please visit this post on my blog.  There is an enlightening 15 minute video there that I made about the genebank.

It is not a question of taking any set of seeds and putting them into cold storage. Only ‘good’ seeds will survive for any length of time under sub-zero conditions. Many studies have shown that if stored at -18C, seeds with initial high viability may be stored for decades even hundreds of years. The seeds of many plant species – including most of the world’s most important food crops like rice, wheat, maize and many others conform to this pattern. What I can state unequivocally is that the seeds from the genebanks of the world’s most important genebanks, managed like that of IRRI under the auspices of the Consultative Group on International Agricultural Research (CGIAR), have been routinely tested for viability and only the best sent to Svalbard.

Prof. Phil Pardey, University of Minnesota

Prof. Phil Pardey, University of Minnesota

The other aspect of Goldenberg’s otherwise excellent article are the concerns raised by a number of individuals whose ‘comments’ are quoted. I count both Phil Pardey and Nigel Maxted among my good friends, and it seems to me that their comments have been taken completely out of context. I have never heard them express such views in such a blunt manner. Their perspectives on conservation and use, and in situ vs. ex situ are much more nuanced as anyone will see for themselves from reading their many publications. The SEARICE representative I do not know, but I’ve had many contacts with her organization. It’s never a question of genebank or ex situ conservation versus on-farm or in situ conservation. They are complementary and mutually supportive approaches. Crop varieties will die out for a variety of reasons. If they can be stored in a genebank so much the better (not all plant species can be stored successfully as seeds, as was mentioned in Goldenberg’s article). The objection to genebanks on the grounds of permitting multinationals to monopolize these important genetic resources is a red herring and completely without foundation.

So the purpose of the SGSV is one of not ‘putting all your eggs in one basket’. Unfortunately the name ‘Doomsday Vault’ as used by Goldenberg has come to imply a post cataclysm world. It’s really much more straightforward than that. The existence of the SGSV is part of humanity’s genetic insurance policy, risk mitigation, and business continuity plan for a wise and forward-thinking society.’

Over the next couple of days others chipped in with first hand knowledge of the SGSV or genetic conservation issues in general.

Simon Jeppsonsiminjeppson is someone who has first-hand knowledge and experience of the SGSV, and he wrote: ‘I’m currently working as the project coordinator of the Svalbard Global Seed Vault on behalf of NordGen and I just wanted to add some of my reflections on this article some of the comments.

This article is an interesting read but a rather unbalanced one. The temperature increase that is described as putting the world heritage in jeopardy is a misconception. There has been a background study used as a worst case scenario during the planning stage of the Svalbard Global Seed Vault based on the seeds stored in the old abandoned mine shaft mentioned. These results were published in 2003 and even the most recent data (after 25 years in permafrost conditions prevailing in the same mountain without active cooling) shows that all samples are still viable. Anyone curious about this can for themselves try out various storage temperatures and find out the predicted storage time for specific crops at: http://data.kew.org/sid/viability/

Further I have some reflections regarding some of the recently posted comments. The statement “Most seed resources for plant breeding come from farmers’ fields via national seed stores in developing countries: these countries are not depositing in Svalbard.” is wrong; more than 60% of the deposited material originates from developing countries. Twenty-three of depositors represent national or regional institutes situated in developing counties, 12 are international centers and 28 are from developed countries according to IMF. This data is readily available at: http://www.nordgen.org/sgsv

Finally, a comment about the statement that “Seeds will not be distributed – only ever sent back to the institute that provided them. The reason is that seeds commonly have seed-borne diseases, sometimes nasty viruses and the rest.” This statement is also a misconception. The seeds samples stored in the vault are of the same seed lots already readily distributed worldwide from the depositing institutes. There are more than 1750 plant genetic institutes many of them distributing several thousand samples every year.’

maxted-nigel-Cropped-110x146Nigel Maxted is a senior lecturer in the School of Biosciences at the University of Birmingham. As I suspected, when I commented on Goldenberg’s article, Nigel’s contribution to the discussion was taken out of context. He commented: ‘I believe I have been mis-quoted in this article, I do think the Svalbard genebank is worthwhile and I hope the Trust reach their funding goal, even though ex situ does freeze evolution for the accessions included, it provides our best chance of long-term stability for preserving agrobiodiversity in an increasingly unstable world.

I was trying to make a more nuanced point to Suzanne, that I strongly support complementary conservation that involves both in situ and ex situ actions. However at the moment if we compare the financial commitment to in situ and ex situ conservation of agrobiodiversity, globally over 99% of funding is spent on ex situ alone, therefore by any stretch of the imagination can we be considered to be implementing a complementary approach? I was used to make a point and I suppose it would be naive of me to complain, but I hope one day we will stop trying to create an artificial dichotomy between the two conservation strategies and wake up to the need for real complementary conservation. Conservation that includes a balanced range of in situ actions as well to conservation agrobiodiversity before it is too late for us all.’

HawtinGeoff Hawtin is someone who knows what he’s talking about. As Director General of the International Plant Genetic Resources Institute for just over a decade from 1991, and the founding Executive Secretary of the Global Crop Diversity Trust, Geoff had several telling comments: ‘As someone who has worked for the last 25 years to help conserve the genetic diversity of our food crops, I welcome the article by Suzanne Goldenberg in spite of its very many inaccuracies and misconceptions. She rightly draws attention to the plight of what is arguably the world’s most important resource in the fight against food and nutritional insecurity. If this article results in more attention and funds being devoted to safeguarding this resource—whether on farm or in genebanks—it will have served a useful purpose.

The dichotomy between in situ and ex situ conservation is a false one. The two are entirely complementary and both approaches are vital. For farmers around the world the genetic diversity of their landraces and local varieties is their lifeblood—a living resource that they can use and mould to help meet their current and future needs and those of their families.

But we all live in a world of rapid and momentous change and a world in which we all depend for our food on crops that may have originated continents away. The diversity an African farmer—or plant breeder—needs to improve her maize or beans may well be found in those regions where these crops were originally domesticated – in this case in Latin America, where to this day genetic diversity of these two crops remains greatest. Without the work of genebanks in gathering and maintaining vast collections of such genetic diversity, how can such farmers and breeders hope to have access to the traits they need to develop new crop varieties that can resist or tolerate new diseases and pests, or that can produce higher yields of more nutritious food, or that are able to meet the ever growing threats of heat, drought and flooding posed by climate change?

Scientists have been collecting genetic diversity since at least the 1930s, but efforts expanded significantly in the 1970s and 80s in response to growing recognition that diversity was rapidly disappearing from farmers fields in many parts of the world as a result of major shifts in agricultural production systems and the introduction and adoption of new, higher yielding varieties. Today, thanks to these pioneering efforts, diversity is being conserved in genebanks that no longer exists in the wild or on farmers’ fields.

The common misconception that the Svalbard Global Seed Vault exists to save the world following an apocalyptic disaster is perpetuated, even in the title of the article. In reality, the SGSV is intended to provide a safety-net as a back-up for the world’s more than 1,700 genebanks which themselves, as pointed out in the article, are often far from secure. At a cost of about £6 million to build and annual running and maintenance costs of less than £200,000 surely this ranks as the world’s most inexpensive yet arguably most valuable insurance policy.’

Susan_BragdonFinally, among the genetic resources experts, Susan Bragdon made the following comments: ‘I think the author overstates the fierce debates between the proponents of ex situ and in situ conservation. Most would agree that both are needed with in situ being complemented by ex situ.

The controversy over money is because funders are not understanding this need for both and may feel they have checked off that box by funding Svalbard (which is perhaps better seen as an insurance policy—one never hopes to have to use one’s insurance policy.) Svalbard is of course sexier than the on-farm development and conservation of diversity by small scale farmers around the world. Donors can jet in, go dog sledding, see polar bears. Not as sexy to visit most small-scale farms but there are more and more exceptions (e.g., the Potato Park in Peru)

Articles like this set up a false choice between ex situ and in situ which is simply not shared except by a few loud voices. We need to work together to create the kind of incentives that make small scale farming in agrobiodiverse settings an attractive life choice.’

In her staff biography on the Quaker United Nations Office web page, it relates that ‘from 1997-2005 Susan worked with the International Plant Genetic Resources Institute as a Senior Scientist, Law & Policy, on legal and policy issues related to plant genetic resources and in particular managed projects on intellectual property rights, Farmers’ Rights, biotechnology and biological diversity, and on developing decision-making tools for the development of policy and law to manage plant genetic resources in the interest of food security.’

Comments are now closed on The Guardian website for this article. I thought it would useful to bring together some of the expert perspectives in the hope of balancing the arguments—since so many readers had taken the ‘apocalypse’ theme at face value— and making them more widely available.

When I have time, I’ll address some of the perspectives about genebank standards.

Something for your Christmas stocking – Plant Genetic Resources and Climate Change hits the shelves 11 December!

It’s taken just over two and half years, more than 2,400 emails, and many, many hours of editing. But Plant Genetic Resources and Climate Change, edited by myself, Brian Ford-Lloyd and Martin Parry will be published by CABI on 11 December.

Brian was first approached by CABI commissioning editor Vicki Bonham in April 2011. He was reluctant to take on the book by himself, but suggested to Vicki that the project would be feasible if he could persuade Martin and me to be co-editors. I was on vacation in the USA at the time, visiting the Grand Canyon and other locations in Arizona and New Mexico when Brian first contacted me about the possible project. Getting involved in a new book was the last thing on my mind.

The next steps were to produce an outline of the book and find authors whose arms we could twist to contribute a chapter. In the end the book has 16 chapters, as I have described elsewhere. Only two authors let us down and never completed a chapter before we met our deadline with CABI. The contract with CABI was signed in February 2012, and we submitted the final edited chapters by the end of March this year. After that things moved quite fast. We completed the review of page proofs by mid-September, and the figures a couple of weeks later. Early on we agreed I should take on the role of managing editor as I was the only one who was fully ‘retired’ at that time.

Martin Parry

And on Monday this week, David Porter (Books Marketing Manager at CABI) and his colleague Sarah Hilliar came up to Birmingham to video Brian and me (and two other authors, Nigel Maxted and Jeremy Pritchard of the University of Birmingham) for a short promotional video about the book. Unfortunately, Martin Parry was unable to join us.

So now the hard work is over and Plant Genetic Resources and Climate Change is about to be published. There are many interesting key messages, and the preface provides an excellent guide to the rest of the book.