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.


 

What’s wrong with ‘a bowl of alphabet soup’?

A rice farmer in northern Laos with her family

CGIAR? CG? CeeGee? Or should that be CIGAR?

The CGIAR is, it seems, a mystery to almost the entire world population, even those billions whose survival depends on the outputs of CGIAR-funded agricultural research. Recently, philanthropist Bill Gates wrote in his blog that . . . you’ve probably never heard of CGIAR, but they are essential to feeding our future. Fair comment.

Originally known as the Consultative Group on International Agricultural Research but more commonly just CGIAR today, it is the world’s largest global agricultural innovation network.

Founded in 1971, under the auspices of the World Bank, to coordinate international agricultural research efforts aimed at reducing poverty and achieving food security in developing countries, the network today supports 15 independent agricultural research institutes or centers. CGIAR brings evidence to policy makers, innovation to partners, and new tools to harness the economic, environmental and nutritional power of agriculture.

The centers carry out research on the world’s most import food crops (such as wheat, maize, and rice among many others), water and biodiversity management, livestock and fish, tree and forest systems, the dynamics of the world’s most challenging agricultural ecosystems, and food and agricultural policy.

Their research agendas contribute significantly towards the United Nations Sustainable Development Goals. And, of course, much of the research today is directed towards combating the threat (and challenges) of a changing climate that will affect agricultural productivity in most parts of the world in decades to come. In his blog piece, Gates rightly highlights the important climate-related research ongoing at two centers in Mexico and Nigeria, the International Maize and Wheat Improvement Center (CIMMYT) and International Institute for Tropical Agriculture (IITA), respectively. There’s more going on in the other centers coordinated through a cross-center research program.

Many billions of dollars have been invested in international agricultural research over the past 50 years or so. But the economic return through increased productivity has been many billions of dollars more.

But we shouldn’t just look at the economic benefits, important as they are. Millions upon millions of people have been taken out of poverty, and despite a worrying reversal of the favorable downward trend of food insecurity (due to economic slowdowns and downturns around the globe, as outlined in a recent report from several international agencies), more people benefit today from access to better crop varieties or improved practices. Many farmers can now afford to provide education opportunities for their children which they were unable to do without access to new technologies.

The centers supported through CGIAR are the key international players for conservation of genetic diversity found in farmer varieties and wild species of crop relatives. This genetic material or germplasm is safely stored in the genebanks at eleven of the centers. More importantly, this germplasm is being studied and used to breed better-adapted varieties.


When CGIAR was founded in 1971 there were already four centers, which were ‘adopted’ for funding support. The International Rice Research Institute, IRRI, based in the Philippines, is the oldest, founded in 1959 [1] and about to celebrate its Diamond Jubilee later this year.

Then came the Mexico-based CIMMYT in 1966 (although its antecedents stretch back to 1943 and a Rockefeller Foundation-funded program in Mexico), followed in 1967 by the International Center for Tropical Agriculture, CIAT, in Colombia and IITA, in Nigeria. Others followed over the next decade or so, but the number has fluctuated as centers merged, or even closed down.

I worked at two of these centers over a period of 27 years, as a junior/senior scientist in Peru and Central America at the International Potato Center or CIP that was founded in 1971 [2]; and as a Head of Department, then Director, at IRRI.


IRRI, CIMMYT, CIAT, IITA. Just four of the research institute acronyms that seemingly roll off the tongue. Yet, these very acronyms seemingly conspire to confuse. Even Bill Gates seems overwhelmed by center branding, stating that with so many acronyms being bandied about that the  . . . uninitiated feel[ing] as if they’ve fallen into a bowl of alphabet soup.

In the early years, CGIAR was an informal association of donor agencies that agreed to coordinate their funding to support the small numbers of centers that at one stage in the 1990s was allowed to grow to about 18 centers. At least one center closure and some mergers have come about since. And the funding model has changed.

Towards the end of the 1990s there was a growing concern among the donors of the centers—the members of CGIAR (centers are not members per se)—that there was too much duplication among centers in terms of their research programs, that their relationships with research programs in developing countries was burdensome for some of those programs, and that donor interests were not being met. Twenty years on, and despite changes to the funding model whereby donors have much more control over research projects in the centers, and the development of cross-center programs (with all the transactions paraphernalia that comes with these, such as meetings across continents, performance targets, and the added costs of just doing business), the profile of CGIAR remains weak (if we accept Bill Gates’ line of argument).

Why can that be, despite the intensive efforts to remedy this situation. In 1998 the centers supported by the CGIAR created Future Harvest as a charitable and educational organization designed to advance the debate on how to feed the world’s growing population without destroying the environment and to catalyze action for a world with less poverty, a healthier human family, well-nourished children, and a better environment.

It was a doomed rebranding initiative from the outset, yet survived several years. Centers were branded as members of the Alliance of Future Harvest Centers, a branding that has all but disappeared. It’s almost impossible to find any reference to Future Harvest on the web, and I only came across one logo on the inside of one publication. One of the reasons why Future Harvest failed is that while the concept was probably fine for the English-speaking world, it found no counterpart in Chinese, Hindi, Bahasa Indonesia, Swahili, or whatever. Future Harvest? What does that mean?

But it started, in my opinion, from a lack of understanding (misunderstanding, perhaps) of the power of branding of the individual centers. CGIAR (Future Harvest) is the sum of its parts, the independent centers that actually do the research. IRRI is a more powerful, and known, brand in Asia in particular [3]. The same goes for CIMMYT in Mexico, India, and Pakistan, and for the other centers where they operate.

Yes, the initiatives to permit centers to align their agendas and work more closely are worthwhile. But at the outset, the funding model was such that centers found themselves having to bid to become members of the new system programs, just to survive. Not a good reason for inter-center collaboration.

I have no problem with Gates’ bowl of alphabet soup. Fifteen acronyms (that you can actually pronounce) is a small price for strong branding, as long as full names are explained as well. This situation is no different from what you can find in any country. Just take the UK: NIAB (National Institute of Agricultural Botany in Cambridge); JIC (John Innes Centre in Norwich); or JHI (James Hutton Institute, in Dundee and Aberdeen). No-one seems perturbed recognizing these prestigious institutions either by their acronym or name. Why should there be any difficulty for the centers supported by CGIAR?

In response to Gates’ blog post, one tweeter (who had worked at one of the centers, CIMMYT I believe) stated that this ‘confusion’ was a sound justification for merging centers into one institute. I couldn’t disagree more. The strength of CGIAR lies in its diversity. Centers are strategically located around the world. Institutional (and national staff) cultures and set ups are very different. Doing business over time zones is problematical.

Merging organizations is never easy. One ‘partner’ inevitably loses out to another (take the Delta-NWA merger; who now remembers NWA?) One successful merger among CGIAR centers led to the creation of the International Livestock Research Institute or ILRI (bringing together the International Laboratory for Research on Animal Diseases in Nairobi, and the International Livestock Centre for Africa in Addis Ababa). Not all mergers or alliances prosper however. Closer links between IRRI and CIMMYT in the in the early 2000s came to nothing despite best efforts, and having two Board of Trustees members common to both. It remains to be seen how closer links between Bioversity International in Rome and CIAT, or the World Agroforestry Centre in Nairobi and the Center for International Forestry Research, or CIFOR in Bogor, Indonesia, pan out.

As you can see I’m a believer in the power, and identity, of the centers. After all, that’s where the research is planned strategically, where the scientists reside, and where they do their work. Branding is important and can make all the difference for delivering the right message.

Let’s celebrate how CGIAR has supported international agricultural research for almost five decades and continues to provide the framework for that to continue. Yes, the world needs to know and understand the importance of CGIAR and what it stands for. Equally, I would argue, let’s celebrate the work of IRRI, CIMMYT, IITA, CIAT, CIP, IFPRI, Bioversity International, ICARDA, IWMI, ILRI, World Agroforestry, Worldfish, CIFOR, ICRISAT, and Africa Rice.


[1] A Memorandum of Understanding was signed in December 1959 between the Government of the Philippines and the Rockefeller and Ford Foundations to establish IRRI. The Board of Trustees met in April 1960 to approve the institute’s constitution and by-laws. Thus, IRRI has two ‘birthdays’. The 50th anniversary was celebrated on 9 December 2009 and 14th April 2010.

[2] I was originally due to join CIP in September 1971, when I completed my MSc, and the CIP Director General, Richard Sawyer, had approached the forerunner of the UK’s Department for International Development for funding to support my assignment in Peru. But the UK was at that very moment deciding whether to fund CIP bilaterally or join CGIAR and fund the center’s work that way. My departure for Peru was delayed for 15 months.

[3] In about 2004, I was invited to a meeting on biotechnology and intellectual property rights in Malaysia, near Kuala Lumpur. My flight from Manila arrived in KL around 11 pm, and I had to take a taxi to the resort where the meeting was being held, about 35 km or so. I don’t remember if a taxi had been sent for me, or I just took the next one in the rank outside the terminal building exit. On the journey, the driver started asking me a few questions, and when I told him I worked in agriculture in the Philippines, he replied: ‘I guess you must work at IRRI’ or words to that effect. He knew all about IRRI. Notwithstanding he had once been a driver for Malaysia’s Minister of Agriculture, he was indeed very knowledgeable about rice and IRRI’s role. I was more than surprised.

 

Everyone’s a taxonomist

I’ve just discovered (via Twitter) that 19 March was Taxonomist Appreciation Day. This was, as far as I can make out, a celebration of the important—fundamental even—contribution that biologists known as taxonomists make to our understanding of the living world. Taxonomists bring order to the biodiversity that’s all around us. Indeed, without this order and understanding, it would be more difficult to know for example which plants and animals are endangered, and to prioritize what to conserve, and where.

The most celebrated taxonomist of all was surely the eighteenth century Swedish botanist Carl von Linné (whose Latinized name, Linnaeus, identifies him as the taxonomic authority, L., for many plants and animals).

So what do taxonomists do? One of their important roles is to describe and catalogue all plants and animals and, in the case of plants, publish this information in compendia known as Floras as an aid to identification, like those written about the plants of the British Isles and Europe that have been studied for hundreds of years.

Other Floras are still being written. Take the Flora Zambesiaca, for example, a project started in 1960 as the taxonomic study of native and naturalised plants of the Zambezi River basin, covering the territories of Botswana, Malawi, Mozambique, Zambia, Zimbabwe and the Caprivi Strip. This is a work in progress, and there are many other parts of the world where the diversity of plants is only now being discovered and documented, particularly in the Tropics.

But taxonomists also look at the variation within species, and assess the dynamics of species distribution and evolution.


Mr Les Watson

I had my first taste of taxonomy at the University of Southampton where, as first year students or freshmen in 1967/68, we studied the diversity of flowering plants under the tuition of taxonomist Les Watson. He and another colleague Alan Myers took us to the west coast of Ireland for a field course in July 1968 where we studied the vegetation of the Burren in Co Clare.

Professor Vernon Heywood

In my final or senior year in 1970, I sat in on a plant taxonomy course given by eminent taxonomist Professor Vernon Heywood from the University of Reading (Les Watson had moved to Australia in 1968/69, and had not been replaced in the Department of Botany). I met up with Professor Heywood in 1991 at a conference in Rome where we had an opportunity to reminisce about that course.

I never expected that, one day, I would engage in taxonomic research. However, I never participated in describing or naming plant species, nor undertaking the enormous task of contributing to Floras that is sometimes considered the be-all and end-all of taxonomists’ work. I take my hat off to those taxonomists who write Floras, often relying on dried herbarium specimens of plants collected in nature. Nevertheless, in my own work, I have used herbaria on occasion, and twice spent time looking at specimens of lentil (Lens culinaris Medik.) and grasspea (Lathyrus sativus L.) among the millions of herbarium sheets curated in the Herbarium at the Royal Botanic Gardens at Kew. My interest was in the relationships of these cultivated plants and their wild relatives.

Comparing notes in the field in the Andes of central Peru with potato taxonomist Professor Jack Hawkes (who supervised my PhD dissertation).

In 1973 I joined the International Potato Center in Peru as an Associate Taxonomist, studying the evolution of cultivated potatoes. Biosystematics, a sub-discipline of plant taxonomy, was my field, and I investigated species relationships through field experiments to understand patterns of morphological variation, through breeding experiments, and cytogenetic analysis of chromosome pairing in hybrids, among other several different approaches.

When I returned to Birmingham in 1981 as Lecturer in Plant Biology, I continued research on wild potatoes, and also several legume species. I also contributed about half the lectures to a second year module on flowering plant taxonomy.

On moving to the International Rice Research Institute (IRRI) in the Philippines in July 1991, my colleagues and I delved into the taxonomy and species relationships of the two cultivated species of rice, Oryza sativa L. and O. glaberrima Steud., and the 20 or so wild species in the genus Oryza. We published quite extensively, and you you can peruse a list of rice publications (many with PDF files) here.


Just last week I met up for lunch with six retired former colleagues from the School of Biological Sciences at the University of Birmingham: three plant scientists (including me), three geneticists, and a zoologist. Inevitably we began to discuss not only the administrative and organization changes that had occurred at the university (I taught there between 1981 and 1991), but how the teaching of biology had also changed, and the topics that now form a core biology curriculum.

Back in the day, whole organism biology still formed an important component of an undergraduate degree in biological sciences at Birmingham. Nowadays, and for obvious reasons, there’s much more focus on molecular biology, and recent hirings in what is now the School of Biosciences (Biological Sciences and Biochemistry merged some years back) reflect that change of emphasis.

Alas, it’s no longer possible to study at Birmingham for a biology degree with a plant sciences focus. But that’s not just a Birmingham issue; it’s nationwide. And taxonomy is perhaps the discipline that has suffered more than most. Taxonomists are just not coming through the system. Just at the time when one can argue there should be more demand for taxonomists than ever before, given the environmental changes that threaten the world’s vegetation. In some regions we may be losing species even before they have been identified. Harvard biologist EO Wilson wrote this in 2017: Our incomplete taxonomic knowledge impedes our attempts to protect biodiversity. A renaissance in the classification of species and their interactions is needed to guide conservation prioritization [1].


Now, I started this piece stating that everyone is a taxonomist. Is that a fair assumption?I think so.

Appa Rao collecting upland rice varieties from a farmer in the Lao PDR.

Taxonomy (and classification) is a fundamental human characteristic, something we do every day. We sort the complex world around us into meaningful categories, and we give them names. In many societies, farmers and their husbands use so-called ‘folk taxonomies’ to manage the various crops grown, and often the diversity of different varieties within a crop. I have myself talked to potato farmers in the Andes of southern Peru about their cultivation of different varieties, and why these are grown in different ways. In the Lao PDR, with my colleague Dr Appa Rao, we looked at how farmers name all their rice varieties.

Even before talking to my second year students about flowering plant taxonomy as such (and the different approaches used to study variation), I asked them to practice some simple taxonomies on themselves: males vs. females, blondes vs. brunettes, spectacle users vs. non-users, for example. These are discrete characteristics, binary, one or the other. Then we’d look at the complexity of coping with characters that vary quantitatively, such as height, length, etc.

Fortunately, there are many numerical techniques that allow us to cope with all sorts of measurements, and reduce complexity to a state that can be interpreted more easily.

The classification of different rice species based on the measurement and analysis of a range of morphological characters.

The use of different molecular markers now allows us to refine taxonomies built using morphological data. But, as I once read in a letter published in a scientific journal, a professor of taxonomy decried the lack of basic species knowledge among many students using molecular approaches. They could wax lyrical, he stated, about the value of different molecular techniques, but they had hardly looked at a living plant. That brings me back to my concern about the reduction in teaching whole organism biology.

As I say, we are all taxonomists, one way or another. Unfortunately I don’t see any scientific expansion (in the UK at least) in this particular discipline.

The situation may be different in North America. Plant sciences are still very strong in many US universities, and indeed there is a bill before Congress that promotes botanical research & sciences capacity, generates demand for native plant materials, & authorizes related federal activities.


[1] Wilson, EO (2017). Biodiversity research requires more boots on the ground. Nature Ecology & Evolution 1, 1590 –1591

A botanical field trip to the south of Peru . . . 45 years ago

In 1976, a paper appeared in the scientific journal Flora, authored by University of St Andrews botanist Peter Gibbs¹ (now retired), on the breeding system of a tuber crop, oca (Oxalis tuberosa), that is grown by farmers throughout the Andes of Peru and Bolivia.

Like a number of Oxalis species, oca has a particular floral morphology known as heterostyly that promotes outcrossing between different plants. In his 1877 The Different Forms of Flowers on Plants of the Same Species, Charles Darwin had illustrated (in Fig. 11) the particular situation of tristyly in ‘Oxalis speciosa‘, the same floral morphology that is found in oca. In this illustration taken from Darwin’s publication, the ‘legitimate’ pollinations are shown; stigmas can only receive pollen from stamens at the same level in another flower.

Anyway, to cut a long story short, Peter had visited Peru in early 1974 (hard to believe that it’s 45 years ago), made collections of oca from a number of localities, particularly one village, Cuyo Cuyo, in the Department of Puno in the south of Peru (just north of Lake Titicaca), and then studied the breeding system of the oca varieties that he’d collected. His 1976 paper in Flora emanated from that field trip.


But there’s more to that story (and publication) than meets the eye. It was also tied up with the research I was carrying out on potatoes in the Peruvian Andes at that time. Peter and I made that field trip together, spending at least three weeks on the road, before flying back to Lima from Cuzco.

I don’t recall precisely when I first met Peter. We were obviously in touch when planning the trip south, but I simply can’t remember whether, during 1973, Peter had passed through Lima where I was working at the International Potato Center (CIP) in La Molina since January that year, or he had contacted CIP’s Director General Richard Sawyer asking if the center could provide logistical support and the DG had passed that request on to me. Whatever the course of events, Peter and I came to an agreement to make a field trip together to the south of Peru.

This is the route of more than 2000 km that we took.

While working as an Associate Taxonomist at CIP I was also registered for a PhD in potato biosystematics (under potato expert Professor Jack Hawkes at The University of Birmingham) which I was expected to complete by 1975. My work, studying the breeding relationships of potato varieties with different chromosome numbers was similar, in some respects, to that Peter envisaged with oca.

I’d been looking for suitable field locations where it might be possible to study the dynamics of potato cultivation in an ‘unspoiled’ area where mostly traditional potato varieties were cultivated rather than varieties bred and released on the market in recent years. At the back end of 1973 I made a short visit to Puno on the shore of Lake Titicaca to explore several possible field sites. Then, Peter proposed we visit the remote village of Cuyo Cuyo, around 250 km north of Puno. He’d come across a paper (either one by AW Hill in 1939 or another by WH Hodge in 1951 – both are cited by Peter in his Flora paper) that described widespread oca cultivation at Cuyo Cuyo on a series of ancient terraces, but also of potato varieties. I wasn’t sure if this was the location I was looking for, but agreed that we could explore Cuyo Cuyo first before heading north towards Cuzco in search of other likely sites.


Our journey south to Puno took at least three days if memory serves me correctly. Our trusty chariot was a short wheelbase Land Rover, with a canvas hood.

Not the most secure vehicle if you have to park up overnight in an unprotected lot. Nor the most comfortable; very sturdy suspension. But an excellent vehicle otherwise for ‘driving’ out of tricky situations.

We headed south on the Panamericana Sur, stopping at Ica or Nazca on the first night south of Lima, then on the Arequipa on the second day.

The Panamericana hugs the coast through the southern desert, crossing river valleys that flow down from the Andes to meet the Pacific Ocean. Along these, and in the area of Camana (where the road heads inland to Arequipa) quite a lot of rice is grown.

From Arequipa it must have taken another day to travel to Puno across the altiplano.

We then had another night to recoup in Puno, enjoying a comfortable bed, some good food, and perhaps one too many algarrobina cocktails (made from pisco) that Peter had taken a shine to.

Along the shore of Lake Titicaca near Puno


It took a day to travel to Cuyo Cuyo, across the altiplano (>4000 masl), fording rivers, and then, as we approached the village from the south, dropping into a steep-sided valley, the Sandia Gorge.

We hit a cloud layer, obscuring views of the valley, but also coming across a landslide that had to be cleared before we could make progress.

Once past that barrier, the cloud cleared and we began to see something of the majesty of the Cuyo Cuyo valley, with the steep valley sides covered in ancient terraces that, as we discovered over the next few days, were still be farmed communally as they had been for generations apparently. On the descent into Cuyo Cuyo, the banks alongside the road were also covered in masses of a beautiful begonia (Begonia clarkei Hook.) with large white flowers about 3-4 inches in diameter.


Where to stay? There was no hotel or pensión in Cuyo Cuyo. We did however have some camping gear with us such as camp beds, sleeping bags and the like. Plus all our other equipment for collecting (and drying) herbarium samples, and flowers and flower buds for pollen and chromosome studies.

After some enquiries we met Sr Justo Salas Rubín (who was, if I remember correctly, the local postmaster – seen with Peter below) who gave us space in one of the rooms of his home (the ‘post office’?) to set up ‘camp’. We also soon became quite a curiosity for the local children (and some animal friends as well).

I was not disappointed that we chose Cuyo Cuyo first. It was an extraordinary location where we could interact with potato and oca farmers who grew a wide range of varieties, and who were open to collaborate with us. Since that visit in 1974 several other botanists (and anthropologists) have made field studies at Cuyo Cuyo on the agricultural terraces that I described here.

While Peter set about collecting samples in the many oca fields (mainly beside the river on the valley floor), I set off up the terraces to study a couple of fields for their varietal composition, the ploidy (or chromosome number) of these varieties, and the factors that led farmers to accept or reject varieties. I was interested to see how triploid varieties (sterile forms with 36 chromosomes that can only be formed following hybridization between varieties with 48 and 24 chromosomes) could enter farmer systems, and at what frequency.

I also looked at the methods used to cultivate potatoes, and the tools used.²

On the left is a foot plough, about 4 feet in length, known in Cuyo Cuyo as a ‘huire’ (most often ‘chaqui taccla’ in other parts of Peru). Its component parts are: A. ‘calzada’ that rests on the shoulder; B. ‘huiso’ or hand grip; C. ‘lazo’ or leather binding fastening the parts together; D. ‘taquillpo’ or foot rest; and E. the ‘reja’ or blade. On the right is a hand tool used for harvesting potatoes (and presumably oca as well) called the ‘lawccana’, as well as other cultivations during the growing season. Its component parts are: A. the ‘ccalo’ or handle; B. the ‘lazo’, a leather thong holding the blade C. or ‘chonta’ on to the handle.

My paper on potatoes at Cuyo Cuyo was finally published in 1980 in the journal Euphytica. And that’s a tale in itself.³

Peter was keen to make herbarium sheets of many of the varieties he’d collected. We set up a dryer in the house where we were staying. But there was a problem. Most of the samples were pretty wet to begin with, as we experienced intermittent rain during our stay in Cuyo Cuyo. Oca stems are very fleshy, and despite our best efforts, they just didn’t dry out. Even when we got them back to Lima, and Peter prepared them for shipping back to St Andrews, many of the samples were still showing signs of life.

Indeed, after he returned to Scotland, Peter was able to take cuttings from his herbarium samples and grow plants to maturity in the glasshouse, thus continuing his studies there.


After three or four days in Cuyo Cuyo, we retraced our steps to Puno, then headed north towards Cuzco and further study sites near Chinchero.

At these, I was particularly interested in taking flower bud samples from different potato fields. In the area we chose, farmers grew a combination of bred varieties for sale in the local markets of Cuzco and, around their homes, native varieties for home consumption. In this photo, large plantings of commercial varieties stretch into the distance. Around the homes in the foreground, in walled gardens, farmers grew their native varieties.

As I was busy looking at different varieties, these two women came by, and one sat down to breastfeed her baby. They are wearing the traditional dress of that region of Cuzco.

On another day we set out to study potato (and oca) fields a little more remote, so had to hire horses to reach our destination.

Field work complete, Peter and I spent a couple of days resting up in Cuzco before flying back to Lima. We left the Land Rover there for one of my colleagues Zósimo Huamán to pick up, as he planned to undertake some fieldwork as well before driving back to Lima.

During the couple of days in Cuzco we paid a call on Prof. César Vargas, a renowned Peruvian botanist (and close friend of my PhD supervisor Jack Hawkes), who I’d met once before in January 1973 not long after I arrived in Peru. Prof Vargas’s daughter Martha studied for her MSc degree in botany at the University of St Andrews.

L to R: my wife Steph, Peter, and Martha Vargas

All in all, we had a successful field trip to the south of Peru. It’s hard to believe it all took place 45 years ago next month. But it remains, in my mind’s eye, quite a significant trip from the years I spent in Peru.


¹ Peter graduated in botany from the University of Liverpool, and completed his PhD in 1964 there under the supervision of Professor Vernon Heywood, who moved to the University of Reading to become head of that university’s Department of Botany a couple of years later. Peter and I had a lot to talk about, because in 1969-70, when I was an undergraduate at the University of Southampton, Vernon Heywood gave a series of 20 lectures on flowering plant taxonomy over 10 weeks to Southampton botanists, because Leslie Watson, Southampton’s taxonomy lecturer had moved to Australia. Vernon and I renewed our acquaintance some years later, in 1991, when he and I attended a genetic resources meeting at the Food and Agriculture Organization of the United Nations (FAO) in Rome just before I moved to the Philippines to join the International Rice Research Institute (IRRI).

² One interesting piece of information that didn’t make it into my thesis but which I remember clearly was the incidence of geophagy among some residents of Cuyo Cuyo. I was taken to a location where farmers would excavate small quantities of a hard clay, that would be ground to a powder and mixed with water to form a slurry or soft paste. They would then dip recently harvested boiled potatoes in the clay as this, apparently, would decrease the slightly ‘spicy’ flavor of some of the varieties. I’m not sure how widespread this behavior was, but it’s something that has stuck in my mind all these years. I think I once had photos but they are long lost, more’s the pity.

³ I completed my PhD in December 1975, and shortly afterwards moved to Costa Rica to continue working for CIP, in potato breeding and agronomy. I started to prepare three manuscripts from my thesis for publication in Euphytica. The first, on varietal diversity, was submitted in February 1977, and published later the same year. The second, on breeding relationships, was published in 1978, having been submitted in July 1977. The third, on the ethnobotany of potato cultivation in Cuyo Cuyo finally appeared in print in 1980, having been submitted to Euphytica in February 1979.

But Euphytica had not been the first choice for this third paper. I actually produced a manuscript for the journal Economic Botany, and it included more details of the cropping systems and varietal choices made by farmers. My paper was received by the journal and acknowledged, but then I heard nothing more, for months and months. Eventually I wrote to the editor asking about the status of my manuscript. And I received a very strange reply.

It seemed that the editor-in-chief had retired, and his replacement had found, on file, manuscripts that had been submitted up to 20 years earlier, but had never been published! I was asked how I wanted to proceed with my manuscript as there was no guarantee it would appear in print any time soon. But about the same time, I received a nice letter from the then editor of Euphytica, Dr AC Zeven, complimenting me on my PhD thesis (which he had read in the library at Wageningen University in the Netherlands) and encouraging me to publish my work on the ethnobotany of potatoes – if I hadn’t already done so. I withdrew my manuscript from Economic Botany, and after some reformatting to fit the Euphytica style, sent it to Dr Zeven. He requested some deletions of the more descriptive sections on ethnobotany, and published my paper in 1980.


One last thing: I also remember was the novel that Peter was reading throughout the trip. Watership Down by Richard Adams, first published in 1972, that went on to become a literary sensation. I did read it myself at some point, but whether I borrowed Peter’s copy immediately after the trip, or some time later, I don’t recall. I know I didn’t think it would become the phenomenon that it did. What do I know?


 

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’!


 

 

Discovering Vavilov, and building a career in plant genetic resources: (1) Starting out in South America in the 1970s

Nikolai Vavilov

Russian geneticist and plant breeder Nikolai Vavilov (1887-1943) is a hero of mine. He died, a Soviet prisoner, five years before I was born.

Until I began my graduate studies in the Department of Botany at the University of Birmingham in the conservation and use of plant genetic resources (i.e., crops and their wild relatives) almost 50 years ago in September 1970, his name was unknown to me. Nevertheless, Vavilov’s prodigious publications influenced the career I subsequently forged for myself in genetic conservation.

Jack Hawkes

At the same time I was equally influenced by my mentor and PhD supervisor Professor Jack Hawkes, at Birmingham, who met Vavilov in St Petersburg in 1938.

Vavilov undoubtedly laid the foundations for the discipline of genetic resources —the collection, conservation, evaluation, and use of plant genetic resources for food and agriculture (PGRFA). It’s not for nothing that he is widely regarded as the Father of Plant Genetic Resources.

Almost 76 years on from his death, we now understand much more about the genetic diversity of crops than we ever dreamed possible, even as recently as the turn of the Millennium, thanks to developments in molecular biology and genomics. The sequencing of crop genomes (which seems to get cheaper and easier by the day) opens up significant opportunities for not only understanding how diversity is distributed among crops and species, but how it functions and can be used to breed new crop varieties that will feed a growing world population struggling under the threat of environmental challenges such as climate change.

These tools were not available to Vavilov. He used his considerable intellect and powers of observation to understand the diversity of many crop species (and their wild relatives) that he and his associates collected around the world. Which student of genetic resources can fail to be impressed by Vavilov’s theories on the origins of crops and how they varied among regions.

In my own small way, I followed in Vavilov’s footsteps for the next 40 years. I can’t deny that I was fortunate. I was in the right place at the right time. I had some of the best connections. I met some of the leading lights such as Sir Otto Frankel, Erna Bennett, and Jack Harlan, to name just three. I became involved in genetic conservation just as the world was beginning to take notice.


Knowing of my ambition to work overseas (particularly in South America), Jack Hawkes had me in mind in early 1971 when asked by Dr Richard Sawyer, the first Director General of the International Potato Center (CIP, based in Lima, Peru) to propose someone to join the newly-founded center to curate the center’s collection of Andean potato varieties. This would be just a one-year appointment while a Peruvian scientist received MSc training at Birmingham. Once I completed the MSc training in the autumn of 1971, I had some of the expertise and skills needed for that task, but lacked practical experience. I was all set to get on the plane. However, my recruitment to CIP was delayed until January 1973 and I had, in the interim, commenced a PhD project.

I embarked on a career in international agricultural research for development almost by serendipity. One year became a lifetime. The conservation and use of plant genetic resources became the focus of my work in two international agricultural research centers (CIP and IRRI) of the Consultative Group on International Agricultural Research (CGIAR), and during the 1980s at the University of Birmingham.


My first interest were grain legumes (beans, peas, etc.), and I completed my MSc dissertation studying the diversity and origin of the lentil, Lens culinaris whose origin, in 1970, was largely speculation.

Trevor Williams

Trevor Williams, the MSc Course tutor, supervised my dissertation. He left Birmingham around 1977 to become the head of the International Board for Plant Genetic Resources (IBPGR) in Rome, that in turn became the International Plant Genetic Resources Institute (IPGRI), and continues today as Bioversity International.

Joe Smartt

I guess that interest in legume species had been sparked by Joe Smartt at the University of Southampton, who taught me genetics and encouraged me in the first instance to apply for a place to study at Birmingham in 1970.

But the cold reality (after I’d completed my MSc in the autumn of 1971) was that continuing on to a PhD on lentils was never going to be funded. So, when offered the opportunity to work in South America, I turned my allegiance to potatoes and, having just turned 24, joined CIP as Associate Taxonomist.

From the outset, it was agreed that my PhD research project, studying the diversity and origin, and breeding relationships of a group of triploid (with three sets of chromosomes) potato varieties that were known scientifically as Solanum x chaucha, would be my main contribution to the center’s research program. But (and this was no hardship) I also had to take time each year to travel round Peru and collect local varieties of potatoes to add to CIP’s germplasm collection.

I explored the northern departments of Ancash and La Libertad (with my colleague Zósimo Huamán) in May 1973, and Cajamarca (on my own with a driver) a year later. Each trip lasted almost a month. I don’t recall how many new samples these trips added to CIP’s growing germplasm collection, just a couple of hundred at most.

Collecting in Ancash with Zosimo Huaman in May 1973.

Collecting potatoes from a farmer in Cajamarca, northern Peru in May 1974 (L); and getting ready to ride off to a nearby village, just north of Cuzco, in February 1974 (R).

In February 1974, I spent a couple of weeks in the south of Peru, in the department of Puno, studying the dynamics of potato cultivation on terraces in the village of Cuyo-Cuyo.

Potato terraces at Cuyo Cuyo in Puno, southern Peru.

I made just one short trip with Jack Hawkes (and another CIP colleague, Juan Landeo) to collect wild potatoes in central Peru (Depts. of Cerro de Pasco, Huánuco, and Lima). It was fascinating to watch ‘the master’ at work. After all, Jack had been collecting wild potatoes the length of the Americas since 1939, and instinctively knew where to find them. Knowing their ecological preferences, he could almost ‘smell out’ each species.

With Jack Hawkes, collecting Solanum multidissectum in the central Andes north of Lima, early 1975.

My research (and Zósimo’s) contributed to a better understanding of potato diversity in the germplasm collection, and the identification of duplicate clones. During the 1980s the size of the collection maintained as tubers was reduced, while seeds (often referred to as true potato seed, or TPS) was collected for most samples.

Potato varieties (representative ‘morphotypes’) of Solanum x chaucha that formed part of my PhD study. L-R, first row: Duraznillo, Huayro, Garhuash Shuito, Puca Shuito, Yana Shuito L-R, second row: Komar Ñahuichi, Pishpita, Surimana, Piña, Manzana, Morhuarma L-R, third row: Tarmeña, Ccusi, Yuracc Incalo L-R, fourth row: Collo, Rucunag, Hayaparara, Rodeñas

Roger Rowe

Dr Roger Rowe was my department head at CIP, and he became my ‘local’ PhD co-supervisor. A maize geneticist by training, Roger joined CIP in July 1973 as Head of the Department of Breeding & Genetics. Immediately prior to joining CIP, he led the USDA’s Inter-Regional Potato Introduction Project IR-1(now National Research Support Program-6, NRSP-6) at the Potato Introduction Station in Sturgeon Bay, Wisconsin.

Although CIP’s headquarters is at La Molina on the eastern outskirts of Lima, much of my work was carried out in Huancayo, a six hour drive winding up through the Andes, where CIP established its highland field station. This is where we annually grew the potato collection.

Aerial view of the potato germplasm collection at the San Lorenzo station of CIP, near Huancayo in the Mantaro Valley, central Peru, in the mid-1970s.

During the main growing season, from about mid-November to late April  (coinciding with the seasonal rainfall), I’d spend much of every week in Huancayo, making crosses and evaluating different varieties for morphological variation. This is where I learned not only all the practical aspects of conservation of a vegetatively-propagated crop, and many of the phytosanitary implications therein, but I also learned how to grow a crop of potatoes. Then back in Lima, I studied the variation in tuber proteins using a tool called polyacrylamide gel electrophoresis (that, I guess, is hardly used any more) by separating these proteins across a gel concentration gradient, as shown diagrammatically in the so-called electrophoregrams below. Compared to what we can achieve today using a range of molecular markers, this technique was really rather crude.

Jack Hawkes visited CIP two or three times while I was working in Lima, and we would walk around the germplasm collection in Huancayo, discussing different aspects of my research, the potato varieties I was studying, and the results of the various crossing experiments.

With Jack Hawkes in the germplasm collection in Huancayo in January 1975 (L); and (R), discussing aspects of my research with Carlos Ochoa in a screenhouse at CIP in La Molina (in mid-1973).

I was also fortunate (although I realized it less at the time) to have another potato expert to hand: Professor Carlos Ochoa, who joined CIP (from the National Agrarian University across the road from CIP) as Head of Taxonomy.

Well, three years passed all too quickly, and by the end of May 1975, Steph and I were back in Birmingham for a few months while I wrote up and defended my dissertation. This was all done and dusted by the end of October that year, and the PhD was conferred at a congregation held at the university in December.

With Jack Hawkes (L) and Trevor Williams (R) after the degree congregation on 12 December 1975 at the University of Birmingham.

With that, the first chapter in my genetic resources career came to a close. But there was much more in store . . .


I remained with CIP for the next five years, but not in Lima. Richard Sawyer asked me to join the center’s Regional Research Program (formerly Outreach Program), initially as a post-doctoral fellow, the first to be based outside headquarters. Thus, in April 1976 (only 27 years old) I was posted to Turrialba, Costa Rica (based at a regional research center, CATIE) to set up a research project aimed at adapting potatoes to warm, humid conditions of the tropics. A year later I was asked to lead the regional program that covered Mexico, Central America, and the Caribbean.

CATIE had its own germplasm collections, and just after I arrived there, a German-funded project, headed by Costarrican scientist Dr Jorge León, was initiated to strengthen the ongoing work on cacao, coffee, and pejibaye or peach palm, and other species. Among the young scientists assigned to that project was Jan Engels, who later moved to Bioversity International in Rome (formerly IBPGR, then IPGRI), with whom I have remained in contact all these years and published together. So although I was not directly involved in genetic conservation at this time, I still had the opportunity to observe, discuss and learn about crops that had been beyond my immediate experience.

It wasn’t long before my own work took a dramatically different turn. In July 1977, in the process of evaluating around 100 potato varieties and clones (from a collection maintained in Toluca, Mexico) for heat adaptation (no potatoes had ever been grown in Turrialba before), my potato plots were affected by an insidious disease called bacterial wilt (caused by the pathogen Ralstonia solanacearum).

(L) Potato plants showing typical symptoms of bacterial wilt. (R) An infected tuber exuding the bacterium in its vascular system.

Turrialba soon became a ‘hot spot’ for evaluating potato germplasm for resistance against bacterial disease, and this and some agronomic aspects of bacterial wilt control became the focus of much of my research over the next four years. I earlier wrote about this work in more detail.

This bacterial wilt work gave me a good grounding in how to carefully evaluate germplasm, and we went on to look at resistance to late blight disease (caused by the fungus Phytophthora infestans – the pathogen that caused the Irish Potato Famine of the 1840s, and which continues to be a scourge of potato production worldwide), and the viruses PVX, PVY, and PLRV.

One of the most satisfying aspects of my work at this time was the development and testing of rapid multiplication techniques, so important to bulk up healthy seed of this crop.

My good friend and seed production specialist colleague Jim Bryan spent a year with me in Costa Rica on this project.

Throughout this period I was, of course, working more on the production side, learning about the issues that farmers, especially small farmers, face on a daily basis. It gave me an appreciation of how the effective use of genetic resources can raise the welfare of farmers and their families through the release of higher productivity varieties, among others.

I suppose one activity that particularly helped me to hone my management skills was the setting up of PRECODEPA in 1978, a regional cooperative potato project involving six countries, from Mexico to Panama and the Dominican Republic. Funded by the Swiss, I had to coordinate and support research and production activities in a range of national agricultural research institutes. It was, I believe, the first consortium set up in the CGIAR, and became a model for other centers to follow.

I should add that PRECODEPA went from strength to strength. It continued for at least 25 years, funded throughout by the Swiss, and expanding to include other countries in Central America and the Caribbean.

However, by the end of 1980 I felt that I had personally achieved in Costa Rica and the region as much as I had hoped for and could be expected; it was time for someone else to take the reins. In any case, I was looking for a new challenge, and moved back to Lima (38 years ago today) to discuss options with CIP management.

It seemed I would be headed for pastures new, the southern cone of South America perhaps, even the Far East in the Philippines. But fate stepped in, and at the end of March 1981, Steph, daughter Hannah (almost three) and I were on our way back to the UK. To Birmingham in fact, where I had accepted a Lectureship in the Department of Plant Biology.


The subsequent decade at Birmingham opened up a whole new set of genetic resources opportunities . . .


 

 

Three score and ten . . .

18 November 1948. Today is my 70th birthday. Septuagenarian. The Biblical three score and ten (Psalm 90:10)!

Steph and I have come away for the weekend to celebrate my birthday with The Beatles in Liverpool.

We are staying for a couple of nights at Jurys Inn close to the Albert Dock. Later this morning we’ve booked to visit the National Trust-owned Beatles’ Childhood Homes (of John Lennon and Paul McCartney). And after lunch, we will tour The Beatles Story where I’m hoping to see, displayed there, something special from my childhood.

How the years have flown by. Just a month ago, Steph and I celebrated our 45th wedding anniversary. And I find it hard to believe that I started university over 50 years ago.

That got me thinking. I’ve written quite a lot in this blog about the years after I graduated, my time working overseas, about travel, and what Steph and I have been up to since retiring in 2010.

However, I written much less about my early years growing up in Cheshire and Staffordshire. This is then an appropriate moment to fill some gaps.

A son of Cheshire
I was born in Knowlton House nursing home in Congleton, Cheshire (map), third son and fourth and youngest child of Frederick Harry Jackson (aged 40), a photo process engraver, and Lilian May Jackson, also aged 40, housewife.

Mum and Dad, around 1959/60 after we had moved to Leek

My eldest brother Martin has been able to trace our family’s ancestry (mainly on my father’s side) back to someone named Bull, who was my 13th great-grandfather, born around 1480 on the Staffordshire/ Derbyshire border, just one of my 32,000 plus direct ancestors then. I must be related to royalty in one way or another (as are most of us), although looking at the occupations noted for many of them in various official documents (birth and marriage certificates, census data), we came a long way down the pecking order. Definitely below the salt! We’re Irish on my mother’s side of the family.

A punk before it was fashionable!

I am also a child of the National Health Service (NHS) that was founded in July 1948. In fact, I’m (approximately) the 190,063rd baby born under the NHS!

Knowlton House on Parson Street in Congleton – it’s no longer a nursing home.

I wonder who assisted at my birth? It could well have been our family Dr Galbraith, or Nurses Frost and Botting.

Dr Galbraith (R) was our family doctor, who (with his partner Dr Ritchie) often attended births at Knowlton House, and is seen here with resident midwife Nurse Rose Hannah Frost, who assisted at more than 3000 births. There is a very good chance either Nurse Frost or Nurse May Botting (who ran the nursing home) assisted at my birth. In this photo from 1936, Dr Galbraith and Nurse Frost are holding the Nixon triplets. Photo courtesy of Alan Nixon, who was apparently named after Dr Galbraith.

My dad registered my birth¹ on 22 November (Entry No. 442). There are few ‘Michaels’ in the family; Thomas is my paternal grandfather’s name.

My eldest brother Martin was born in September 1939, just a couple of days before war was declared on Germany. My sister Margaret was born in January 1941. Martin and Margaret spent much of WWII with my paternal grandparents in rural Derbyshire. My elder brother Edgar (‘Ed’) is, like me, one of the baby boomer generation, born in July 1946.

The difference of around 55 years – 1951/52 and 2006

I’ve often wondered what sacrifices Mum and Dad had to make to give us all such a good start in life.

Growing up in Congleton, we lived at 13 Moody Street, close to the town center’s High Street.

There’s not much to tell about my first couple of years, other than what I can surmise from a few photographs taken around that time when I was still in my pram or just beginning to walk. Two things I do remember clearly, though. The hens my father used to keep, and even the large henhouse he constructed at the bottom of the garden. And our female cat, Mitten, and all her kittens. That must have been the start of becoming an ailurophile (cat lover).

My best friend was Alan Brennan, a year younger, who lived a little further up Moody Street at No. 23 (and with whom I reconnected through this blog, after a gap of around 60 years!).

With Alan and his parents (and friends) at Timbersbrook, in 1955. I clearly remember Mr Brennan’s Vauxhall car – a Wyvern I believe.

We didn’t go to the same primary school. Like my brothers and sister before me, I was enrolled (in September 1952 or April 1953, maybe as late as September 1953) at the small Church of England school on Leek Road in Mossley, south of the town. By then, Martin had moved on to grammar school in Macclesfield; Margaret had also transferred to secondary school in Congleton.

Each morning, Ed and I would catch the bus in the High Street together for the short, 1½ mile ride to Mossley. And even as young as five, I would sometimes walk home alone from school during the summer months, along Leek Road and Canal Road/Street. How times change!

I remember the headteacher, Mr Morris, as a kind person. My class teachers were Mrs Bickerton (on the left) and Mrs Johnson (on the right). Courtesy of Liz Campion.

There was a real community of children around Moody Street, Howie Lane/Hill, and Priesty Fields. In summer, we’d all wander up to play on the swing bridge over the Macclesfield Canal (beyond the cemetery – where we would also play in a WWII air raid shelter). The bridge has long been replaced, but from comments on a Congleton Facebook group I belong to, it seems that over the generations, many children enjoyed the swing bridge as much as we did.

In winter, we had fun in the snow at Priesty Fields just round the corner from Moody St. And, as you can see below, we enjoyed dressing up. Happy days!

In the upper image, taken on Coronation Day in 1953, I’m fifth from the right (carrying the stick). Alan Brennan is the little by to the left of the ‘clown’, and in front of the ‘pirate’, my elder brother Ed. The lower image was taken on May Day, probably 1953 or 54. I’m on the left, carrying the sword, uncertain whether to be a knight or a cowboy.

c. 1955. L-R: Veronica George, Carol Brennan, Jessica George, my elder brother Ed, me, Margaret Moulton, and Alan Brennan. Taken in the garden of No 13 Moody St. The George sisters lived at No. 21 Moody St.

I often joined my father when he went out on photographic assignments for the Congleton Chronicle (where he was Chief Photographer), often to Biddulph Grange when it was an orthopedic hospital, also to Astbury, and out into the beautiful Cheshire countryside.

I remember one outing in particular, to Little Moreton Hall in May 1954. This is my father’s photo of Manley Morris Men dancing there, an image that stuck in my mind for many years. So much so that when I went to university in the later 1960s, I helped form a morris dancing side, the Red Stags, that’s still going strong (albeit in a slightly different form) 50 years later.

The Manley Morris Men at Little Moreton Hall on 8 May 1954.

For family holidays I remember those in North Wales, at a caravan park or, on one occasion, a camping coach, a converted railway carriage alongside the mainline to Holyhead next to the beach at Abergele.

During these early years, until July 1954, rationing was still in place that had come into effect at the start of the Second World War. I often wonder how my parents managed to raise four children during these difficult years. One thing I do recall, however, is how we shared things, particularly confectionery. No individual treats. My father would buy a Mars bar (I’m sure they were bigger then) and cut it into six pieces. Funny how these things stick in one’s memory.


The move to Leek
April 1956. A big change in my life. My family upped sticks and moved 12 miles southeast to the market town of Leek in north Staffordshire, where my father took over a retail photography business. As I was only 7½ when we moved, I’ve come to regard Leek as my home town. My parents lived there for the rest of their lives. My father passed away in 1980, and after my mother had a stroke in 1990, only then did she move away from Leek to spend her last couple of years in a care home near my sister in South Wales.

We lived at No. 65, St Edward Street, and within a couple of days of arriving there, I’d made friends with three boys who lived close by: Philip Porter (next door), Geoff Sharratt – whose father was publican at The Quiet Woman pub a few doors away, and David Phillips who lived over the road. Geoff’s younger sister Susan sometimes joined in our games, as did Philip’s sister Jill. We were the ‘St Edward Street Gang’.

Here we are in the late 1950s (probably 1958), in the yard of The Quiet Woman pub. L-R: Sue, Geoff, me, Philip, and Dave. And again in 2018.

Geoff was my best friend, and we spent a lot of time playing together. There were several upstairs rooms at The Quiet Woman, one of which was the Lodge of the Royal Antediluvian Order of Buffaloes (RAOB, the Buffs, a fraternal organization somewhat similar to the Freemasons). During inclement weather, we often took refuge in the Lodge, playing among the benches and high chairs.

Playing with my Hornby ‘O’ gauge clockwork train at ‘Congleton’ station – it would be a collectors’ item today. Taken around 1958.

I was also a cub scout, as was Ed.

Around 1960, the lease on No. 65 came due, so my father decided to to find a better location for his business. First, he moved across St Edward’s St to No. 56 (while we lived in a flat at the top of the Market Place). In 1962/63 my father acquired No. 19 Market Place as premises for his photographic business, with living accommodation above. This was just what he had been looking for, centrally located in the town, lots of footfall. But the whole property had to be refurbished; there was only one water tap – in the cellar. He did much of the refurbishment himself. I’ve never ceased to be amazed at his DIY talents, something I sadly have not inherited to the same degree. My parents remained at No. 19 until they retired in 1976.

Sandwiched between Jackson the Optician (no relation) on the left, and Victoria Wine on the right, No 19 Market Place was my parents home for 14 years.

Around the same time, Geoff’s parents left The Quiet Woman and moved elsewhere in the town. I was also traveling every day to school to Trent Vale on the south side of Stoke-on-Trent (a round trip of about 28 miles), while Geoff continued his education in Leek. As a consequence, we drifted apart, but through my blog we reconnected in 2012.

Mr Smith

My mother’s family were Irish Catholics, and although we had not been brought up in the faith while in Congleton, both Ed and myself were enrolled in St. Mary’s RC primary school on Cruso Street, a short walk away from home. We were taught by Sisters of Loreto nuns. Headmistress Mother Elizabeth or my class teacher, Mother Bernadine, were never averse to wrapping us across the knuckles with the sharp edge of a ruler. In my final year at St Mary’s (1959-60), we were taught by Mr Smith. But my recollections don’t tally so much with many others who also attended St Mary’s. And I have been horrified at some accounts of how unhappy they were at the school in the 1950s and 60s.

In the late 50s and early 60s, just Ed and I would join our parents for holidays in Wales, most often camping or in our own caravan.

Some of my happiest memories though come from our visits to my grandparents² (my father’s parents) in Hollington, a small Derbyshire village between Ashbourne and Derby. My grandfather was almost 76 when I was born; Grandma was 68.

Family picnic at Hollington, c. 1952, with cousins. Grandma in the center, my mum is on the left. I’m center front ‘guarding’ the bottle.

With Grandad and Grandma Jackson, and our cousin Diana, c. 1959 at Ebenezer Cottage.

Grandma and Grandad celebrated their Golden Wedding in 1954, the occasion of a large gathering of family and friends in Hollington.


Enduring high school
I passed my 11 Plus exam to attend a Roman Catholic grammar school, St Joseph’s College, at Trent Vale on the south side of Stoke-on-Trent. Founded by Irish Christian Brothers in 1932, the school took boys only (but is now co-educational). I had to be on the bus by 07:50 each morning if I was to get to school by 09:00. This was my daily routine for the next seven years.

On reflection, I can’t say that I found the school experience satisfying or that the quality of the education I received was worth writing home about. Yes, there were some good teachers who I looked up to, but much of the teaching was pretty mediocre. I’ve written elsewhere about the gratuitous use of corporal punishment at the school.

Perhaps one of the school’s claims to fame was the priest who attended to our ‘spiritual needs’. He was Father John Tolkien, son JRR Tolkien, the author of Lord of the Rings and The Hobbit. My first impressions of Fr Tolkien were not favorable. He came across as cold and authoritarian. When I got to know him later on, however, I found he was a warm person with a good sense of humor. I was saddened to learn that his last years were blighted by accusations of abuse, later dropped.


On to university . . . and faraway places
I was lucky to secure a place in October 1967 at the University of Southampton to study botany and geography, beginning three of the happiest years of my life. I’ve already blogged about various aspects of my time at Southampton, and you can read them here. Little did I think that I would have a career in botany, and that would lead me to fulfill one of my ambitions: to visit Peru.

Even though I graduated in 1970 with only an average BSc degree, that didn’t hold me back. I had ambitions.

I was fortunate to be accepted into graduate school at the University of Birmingham, where I completed MSc and PhD degrees in plant genetic resources, and returned there in 1981 for a decade as Lecturer in Plant Biology.

After my PhD graduation at The University of Birmingham on 12 December 1975 with my PhD supervisor, Prof. Jack Hawkes (L) and Prof. Trevor Williams (R) who supervised my MSc dissertation.

My international career in plant genetic resources conservation and agriculture took me to Peru and Costa Rica from 1973-1981, to work on potatoes for the International Potato Center (CIP). And then in July 1991, I moved to the Philippines to join the International Rice Research Institute (IRRI) for the next 19 years as head of the genebank then as Director for Program Planning and Communications.

I had good opportunities to publish my research over the years, in terms of journal articles, books and book chapters, and presentations at scientific conferences.

I retired in April 2010, at the age of 61. But I haven’t rested on my laurels. Scientifically I have:

In the 2012 I was honored to be made an Officer of the Most Excellent Order of the British Empire, or OBE, for services to international food science (in the New Year’s Honours).

I set up this blog in February 2012, and have written more than 460 stories for a total of around 470,000 words since then, and posted thousands of images, most of which I have taken myself.


Family
Steph and I were married on 13 October 1973 in Lima, Peru. We’d met at Birmingham during 1971-72, and after I’d moved to Lima in January 1973, she joined me there in July and also worked at CIP.

At La Granja Azul restaurant near Lima (on the left) after our wedding in 1973. And on the right, exactly 45 years later during one of our walks at Croome Court in Worcestershire.

Hannah, our elder daughter was born in Costa Rica in April 1978. Philippa was born in Bromsgrove in May 1982, a year after we had moved back to the UK (in March 1981). When we moved to the Philippines in 1991, they both attended the International School Manila, and then went on to university in the USA (Macalester College in Minnesota) and Durham in the UK, respectively. In 2006 and 2010, they completed their PhD degrees in psychology, respectively at the University of Minnesota and Northumbria University.

PhD graduands! On the left, Hannah is with her classmates in Industrial-Organizational Psychology at the University of Minnesota, Emily and Mike, on 12 May 2006. Philippa (on the right) is with one of her PhD supervisors, Prof. David Kennedy of the Brain, Performance and Nutrition Research Centre in the Dept. of Psychology at Northumbria University on 7 December 2010.

In those same years Hannah married Michael, and Phil married Andi. We now have four wonderful grandchildren: Callum (8), Elvis (7), Zoë (6), and Felix (5). The family came together for the first time in a New Forest holiday in July 2016.

On holiday in the New Forest in July 2016. L-R (sitting): Callum, Hannah, Zoë, me, Steph, Elvis, Felix, and Philippa. Standing: Michael and Andi

The 2018-19 school year started for Callum and Zoë in August, and for Elvis and Felix in September. It was also Felix’s first day at school.

In September, Steph and I spent a week in Cornwall exploring many National Trust and English Heritage properties around the county.

Foldes and Fenner family photos in July and September


So, as I look back on the past 70 years, I can’t say I have much to complain about. Steph and I have a beautiful family. An interesting career took me to more than 65 countries (and Steph to some of those). We’ve lived and worked in three countries and made some wonderful friends.

Je ne regrette rien

At 70, though, what does life have in store?

I think Fleetwood Mac (one of my favorite bands) sum it up quite nicely. If it was fine for Bill Clinton, it’s good enough for me.

Retirement is sweet. Who could ask for more?


¹ I no longer have my original birth certificate. That now sits in an archive somewhere in the Miraflores Municipality building in Lima, Peru. When Steph and I married there in October 1973 we had to present our original birth certificates, not realizing these would be filed away in perpetuity and never returned to us.

² I did not really know my mother’s parents, who died before my sixth birthday. They lived in Epsom, Surrey.