Publish and be damned . . . or perish?

There have been some interesting articles recently in The Guardian recently about academic publishing. In his blog, Cambridge mathematician Tim Gowers has vowed never to publish in or referee for any scientific journal published by the Dutch company Elsevier. He – and the majority of academics, I guess – are horrified about the huge profits that Elsevier (and other companies it has to be said) make from academic publishing. More than 10,000 academics have signed up to Gowers’ protest.

The current system depends on the goodwill of academics reviewing and editing scientific papers – essentially for free – while the publishers charge very high subscriptions for the ‘most prestigious’ journals. And it seems that some of their practices in terms of bundling journals are questionable to say the least.

In the UK, the Wellcome Trust is looking to establish an open access journal. Even that bastion of learning and wealth, Harvard University, is pleading poverty when it comes to journal subscriptions, and encouraging its academics to publish in open access journals.

Now, I’ve been publishing my research now for many decades – in scientific journals and books (as well as writing and editing books). I’ve never used an open access journal, and I guess now that I’m retired it’s highly unlikely that I ever will.

One thing’s for certain, open access does not mean free. Someone has to pay – and it’s usually the author who pays an upfront fee once a manuscript has passed through the normal peer review process and accepted for publication. Thereafter, everyone can access the work through the Internet.

One of the main arguments in favor of open access is that since much of the research is publicly funded – by the taxpayer – there is no justification for hiding it away behind a pay wall. In searching for information for this blog, and some editing and writing I’m doing in connection with a new book on genetic resources and climate change, I am unable to access the scientific papers I would like to without making a pay-per-view payment (usually around USD30 or so for many journals). I don’t have access to that sort of money. In any case, it seems outrageous to me to be charging a pay-per-view fee for papers that were published more than a couple of years ago. I’ve seen these fee requests for work published 30 years ago, and which lies locked up in the cyber vaults of the publishers.

Some open access journals, like PLoS (Public Library of Science) have become very succesful. I also saw reference to another which prides itself on how it was established and is run – the International Journal of the Commons.

But there’s another issue that is not addressed very much in the debate on open access, indeed on academic publication in general. Most academics progress through their careers on the strength of their scientific papers, and are expected to publish in journals with a high impact factor (whether or not perhaps one of these is particularly relevant to the field of study), and on the expectation that this will lead to more citations.

When I taught at the University of Birmingham in the 1980s I used to enjoy a weekly bulletin that was published (by the Education faculty, I believe), called Teaching News. In one issue there was a very interesting article about the dangers of using citation indices. The author argued that a scholarly paper of the highest quality on say, rural poverty in Wales was unlikely – just because of the nature of the study and the likely size of the readership – to be cited very frequently. On the other hand, a less erudite paper on the rise of the Nazis in Germany in the 1930s would probably be cited (condemned even) many times. A ‘raw’ citation index would never take into account the academic quality.

But impact factors and citations are taken into account in the promotion stakes. So while encouraging more use of open access journals (which I applaud) – and this is now a condition of some funding bodies – it flies in the face of promotion policies, the demands of university rankings, etc. This is an aspect that has to be addressed forthwith.

PRECODEPA – one of the CGIAR’s first research networks

Establishing a regional program
In April 1976, CIP opened an office in Turrialba, Costa Rica, hosted by the Centro Agronómico Tropical de Investigación y Enseñanza (CATIE). My role there was to support the regional office based in Toluca, Mexico, and to carry out research on breeding potatoes to tropical conditions, and once we’d realized the problem of bacterial wilt, searching for resistance to this insidious disease.

In July 1997, the regional leader, Ing. Oscar Hidalgo (a Peruvian bacteriologist) departed for his PhD studies in the USA, and instead of transferring me to Toluca, the Turrialba office became the regional headquarters. And in doing so, my responsibilities changed considerably; I became CIP’s primary link with the national potato programs in Mexico, Central America and the Caribbean.

I was supported by my boss in Lima, Dr Ken Brown, who had joined CIP in early 1976 to support the Outreach Program, and soon becoming the head of the Regional Research Program, replacing Dick Wurster. Ken was a cotton physiologist, and had spent most of his career in various parts of Africa, especially Nigeria, and just before joining CIP had headed a cotton research project in Pakistan. Ken was a fantastic person to work with – he knew just how to manage people, was very supportive, and the last thing he ever tried to do was micromanage other people’s work. I learnt a great deal about program and people management from Ken.

Towards the end of 1977, Dr John Niederhauser, proposed the idea of a cooperative regional network among several countries. I worked closely with John over about six months developing and refining ideas, and travelling together to meet program leaders (and even ministers and vice ministers of agriculture) in six countries: Mexico, Guatemala, Honduras, Costa Rica, Panama, and the Dominican Republic. In April 1978 a meeting was held in Guatemala City to launch the Programa Regional Cooperativa de Papa – PRECODEPA, with funding from the Swiss Agency for Development and Cooperation (SDC).


The inaugural meeting of PRECODEPA in Guatemala City, April 1978. L to R (sitting): Ken Brown, me, Richard Sawyer, John Niederhauser (CIP), Carlos Crisostomo (ICTA-Guatemala), unknown. I don’t recognise/remember the two gentlemen standing in the rear.

The SDC was just the right donor agency – one with a long-term commitment. Although I’m not able to determine the current status of PRECODEPA, it was supported by the SDC for more than 25 years, and expanded from the initial six countries to 10 or more, with French and English-speaking countries participating. Of course the original members were all Spanish-speaking – one of the major advantages of this regional program in its early years.

For the next three years, much of my time as CIP’s regional leader was spent supporting PRECODEPA and contributing my own work on bacterial wilt and seed production. However, I have to say that my role during this period – especially during the inception design and development phase – has essentially been removed from the record. And for reasons I could never understand, John Niederhauser chose not to recognize the important contributions that CIP (and me) made to the overall success of PRECODEPA.

Why was PRECODEPA needed, and what did it achieve?
While potato was an important commodity in most of the countries of the region, it was never in the same league as other staples such as maize and beans. Mexico had (and still has) the largest area of potato cultivation in the region, but even this pales into insignificance compared to maize. While agriculture ministries supported potato production, this crop was not a top priority, nor did the countries have the resources (both finance and staff) to support and maintain a fully-rounded potato program. Thus the principal idea behind PRECODEPA was a distributed research effort among the member countries, with each taking leadership in one or more areas of potato research and production which had a high national priority, and sharing that expertise with the other members of the network. This also facilitated support from CIP in that CIP specialists were able to meet with their counterparts from one or two countries in the region rather than all of them, and then the national programs supporting each other, as explained earlier.

Thus, Mexico took a lead in seed potato production and late blight research (Phytophthora infestans; some of the pioneer research funded by the Rockefeller Foundation was carried out in the Toluca valley); Guatemala concentrated on post harvest storage, Costa Rica on bacterial wilt (Ralstonia solanacearum), and Panama on potato cyst nematode (Globodera spp.) After 40 years I cannot remember the lead activities for Honduras and the Dominican Republic. With support from the SDC and back stopping from CIP each country developed its capabilities in its lead area, offered training and technical support to the other members, and in turn received support from the others in those areas where it was ‘weaker’.

Among the first national members of PRECODEPA were Ing. Manuel Villareal (Mexico), who had once served as CIP’s regional leader for Region II, Ing. Alberto Vargas (Vice Minister) and Ing. Fernando Cartín from the agriculture ministry in Costa Rica, Ing. Roberto Rodriguez (IDIAP) from Panama, and Ing. Polibio Vargas from the Dominican Republic. Unfortunately, after 38 years, I am unable to remember the names of the Guatemala (ICTA) and Honduras representatives. In 1979, I think it was, Peruvian scientist Dr Jorge Christiansen was appointed to PRECODEPA and based in Guatemala.

The fact that all original members spoke Spanish was a huge advantage. This greatly facilitated all the nitty-gritty discussions needed to achieve consensus among the members about the advantages of working together – as equals. The fact that the SDC supported PRECODEPA for so many years is one indication of its success. On the SDC website there is this succinct assessment: PRECODEPA’s achievements include increases in yields, output and profitability; substantial reduction in the use of pesticides – representing savings for Central American farmers and reducing the impact on the environment and consumers; the beginnings of a processing industry (French fries, crisps) – meaning regional products entered a market previously dominated by their powerful northern neighbours; production of quality potato seed and the development of a regional potato seed market; and training for thousands of farmers and technicians.

I’m proud to have been part of this innovative program – one of the first such research networks or regional programs established by the centers of the CGIAR.

CIP’s direct involvement
CIP contributed specifically in a couple of areas. In an earlier post I have described the work we did on resistance to bacterial wilt. Some of those resistant materials found their way into the Costarrican seed potato program.

Seed production through rapid multiplication techniques was another important area, and I supported in this by seed production specialist Jim Bryan who spent a sabbatical year with me in 1979-80. We developed further (from Jim’s initial work in Lima) the techniques of stem, sprout and single-node cuttings [1], bringing these to the field to produce disease-free seed potatoes, and help establish a vibrant seed potato industry in Costa Rica.

Since I left CIP (in March 1981) PRECODEPA increased in size, and the members continued to share the coordination of the program among the members. As the information on the SDC website indicates, PRECODEPA was indeed the blueprint for other regional programs on maize and beans, and for other collaborative programs around the world. It was a model for the various consortia that have developed among the centers of the CGIAR and national program partners.

[1] Bryan, J.E., M.T. Jackson & N. Melendez, 1981. Rapid Multiplication Techniques for Potatoes. International Potato Center, Lima, Peru.

Lies, damned lies, and statistics

Lies, damned lies, and statistics – a saying popularised by Mark Twain who attributed it to Victorian Prime Minister Benjamin Disraeli; but there are others. It generally refers to the bolstering of weak arguments with statistics. And you only have the watch the news each day to see how sloppily statistics are used, often by politicians.

I was crap at mathematics at school – only just scraping a pass in my GCE ‘O Level’ examination at the age of 15, whereupon I dropped the subject completely afterwards. But I love playing with numbers – data, especially data I have generated myself through my own research. There’s just so much information to mine in data sets, looking for patterns that throw up lots of different questions, hypotheses even.

Not everyone sees it that way, however. I remember having an argument with one of my students – I can’t remember if it was an undergraduate who had completed a final year honours project with me, or one of my postgraduates. But we disagreed about how best to present data in tabular format. When this student handed me a draft, I asked some pertinent questions about the data and what she thought  they indicated. The student was not able to answer with any conviction. I suggested she should reorganize the data in several ways to see if any patterns emerged. ‘You can’t do that’, she retorted, ‘you are placing a bias on the data’. ‘Humor me’, I asked her, and she duly made the adjustments I had suggested. Lo and behold, she was able to detect a number of patterns, relationships even, that had not been apparent in her ‘random’ tabulation of data. Now, it was still necessary to undertake appropriate statistical tests to see if the relationships she observed were cause and effect, so to speak, or had occurred merely by chance.

But I think this example just highlights how much information can be ‘hidden’ in data sets.

And one man, who is passionate about statistics, is on a mission to make statistics meaningful for everyone. He’s Professor Hans Rosling, a global health expert and Professor of International Health at the Karolinska Institute in Sweden. Last night I watched a highly entertaining – and illuminating – one hour program on BBC4 titled The Joy of Stats. So enthusiastic is he to uncover the hidden messages in data sets, he’s set up an organization called Gapminder Foundation that aims to visualise data in a way that teases out lots of the underlying detail.

In the video below (taken from the BBC4 program, both of which are freely available on the Gapminder web site), and using some 120,000 data points, Rosling tracks the relationship of life expectancy and income in 200 countries over 200 years.

Rosling is now a highly acclaimed speaker at conferences around the world, especially at TED meetings (Technology, Entertainment & Design). He emphasises the need to access publicly funded databases, to link them, search them, and bring the underlying data messages to the surface, often in the face of those who curate the databases and tell him it’s not possible.

In my own field of agricultural research, Rosling has, in Gapminder Agriculture, taken 700 indicators on production of crops, livestock, etc. from the Food and Agriculture Organization.

As I said, Rosling is a man on a mission – but a highly worthwhile and innovative one. Do take time to watch the videos. Your patience will be rewarded.

Has the Earth ever moved for you?

For me? Frequently. And in many countries.

I’m talking about earthquakes – not just a little tremble (known in Peru as a temblor), but a full-bloodied bone rattler that occurred on 3 October 1974, at 09:21. Although I’d felt a number of tremors of various magnitudes since my arrival in Lima in January 1973, I wasn’t prepared for what happened that morning and continued for many weeks afterwards.

Getting the shakes in 1974
I was working in La Molina on the eastern outskirts of Lima. Usually when an earthquake hit, we would first hear a rumbling noise (somewhat like the sound of a train passing) just before everything started shaking, and often building in intensity. But not the October 1974 earthquake.

I was busy showing a colleague how to make cell preparations to count potato chromosomes (rather tiny and many of them). I was also enjoying (if that’s the right word, given the strength of the CIP brew) my first cup of coffee of the day. And then it hit, without warning, no noise. Just a massive sideward shaking of the building. We immediately joined everyone else in making a beeline for the exit – somehow I even carried my coffee cup outside – and assembling in the car park. The shaking continued for more than two minutes, as strong at the end as when it commenced. Parked cars were bouncing up and down, and I had a hard time even standing up, since the ground was moving about a meter back and forth. As abruptly as it had started, it stopped and we were all left dazed to contemplate what we had just experienced. We later found out that it was a 8.1 M earthquake, the biggest in Peru since those of 1966 and 1970. It was felt about 1300 km north and south of Lima, as well as in the selva to the east of the Andes. The whole country and its major mountain chain rocked for two minutes!

During the earthquake we could hear walls in the CIP building cracking, and shelves falling down. Afterwards we discovered a bizarre cocktail of various chemicals that had mixed together as their containers had smashed on the floor. This was enough, in the months to follow, to re-design all storage cupboards, to segregate potentially flammable materials, and generally improve the housekeeping, having taken serious advice from an agency of the Japanese government.

The earthquake was centered in the Pacific Ocean about 80 km southwest of Lima. There were reports of the ocean retreating off the coast of Miraflores, but no tsunami occurred. The remarkable thing however is that there were few casualties although many properties were badly damaged. Some attribute this to the fact that many people were at work or children in school, in buildings that were safer than their homes. Additionally, the earthquake was hardly felt in some parts of Lima, where buildings had been constructed on alluvial sands near to the River Rimac, the sands having absorbed much of the violent movements.

In La Molina, where buildings had been constructed on bed rock, damage even to new buildings was considerable, particularly in the National Agrarian University.

Once the shaking had stopped, I ran off to find my wife Steph and check if she was alright. She was. Another colleague, Maria Scurrah, had just entered the toilet on the first (upper) floor when the shaking started, and she was unable to escape from the building, and spent the entire time clutching one of the main support pillars. The first thing everyone wanted to do was get home, to check on family and friends – and property. We had an apartment on the 12th floor, and did wonder what we might find. Another problem at that time was the shortage of motor transport. Why? Well, the Peruvian government had introduced a fuel rationing system whereby each car was assigned a different color decal which allowed it to circulate on just certain days of the week. While the CIP buses quickly set off taking staff home, I used my car to ferry quite a number of staff home in the La Molina area before setting off to our Miraflores apartment.

There was little damage to speak of – just a few cracks, but large pieces of furniture had waltzed around the living room, and some items had smashed on the floor. But with aftershocks continuing, we didn’t really want to spend a night on the 12th floor. So we arranged to stay the night with our good friends, Jim and Jeanne Bryan, sleeping on their living room floor. After the earthquake it was agreed that a group of us would return that afternoon to begin the clean-up in the laboratories; eventually large quantities of peat were used to soak up the various spilled chemicals. While I had been fine in the morning, cool and calm, and in full possession of my faculties, by the early afternoon, shock had set in, and I was unable to get up out of my seat, and continued to sit there, hands shaking.

Just less than a week later, on a national holiday to commemorate the naval Battle of Angamos in 1879 against Chile (which Peru lost), there was a major aftershock that occurred as the president of the republic, General Juan Velasco, was about to make a speech. And so they continued week after week, some minor, one or two quite hefty – keeping everyone alert and tense. All the secretaries at CIP were put into a communal office space on the ground floor, but they kept the doors open all the way to the exit. At the first hint of an aftershock there was a stampede down the corridor – woe betide anyone who got in the way!

Ever since I have been incredibly sensitive to the slightest movement that even hints of a tremor or worse, and ready to make my escape. I used to have very dark hair, but from 3 October 1974 my hair started to turn grey.

The earthquake of May 1970
This was a major earthquake that caused the death of tens of thousands of Peruvians. It occurred off the coast of Chimbote, north of Lima. While damage was severe in Chimbote and Casma on the coast, inland in the Callejón de Huaylas, a long valley nestling below the highest snow-capped peaks of the Andes in the Department of Ancash, there was a major landslide.

This fell from near the summit of Nevado Huascarán, Peru’s highest mountain. I read that more than 80 million cubic meters of rock and ice fell at a speed of more than 250 kph. Click on the photo to the left to see the path of the landslide. The towns of Yungay and Ranrahirca were in the path of this landslide, known in Peru as a huayco, and were totally destroyed. In Yungay, just a few palm trees were left standing, and the statue of Christ in the cemetery, where some of the only survivors were visiting when the landslide hit.

Experiences in other countries
I never again experienced another earthquake of such magnitude while I lived in Peru (until early 1976) nor on the many occasions afterwards that I visited. But there were some in Costa Rica and Mexico during the mid- to late-1970s, and during the 19 years we lived in the Philippines, we felt the odd tremor from time-to-time. The strongest earthquake in the Philippines for many years had occurred in July 1990 which did some damage in Los Baños at IRRI. Many of the bookshelves in the library toppled like dominoes. Elsewhere, and in Baguio in particular, there was serious damage, and deaths.

We’ve even felt a few tremors in the UK over the years, both here in Worcestershire, as well as on the Welsh coast in Pembrokeshire in about 1983 or so.

Of course, living in the Philippines we experienced typhoons on a regular basis, several each year in fact. While many of them headed west towards Luzon from the open Pacific, most of these usually headed north to clip the top of the island and regularly doing great damage there. But on a couple of occasions, major typhoons did pass over Los Baños. One of these was Typhoon Milenyo in September 2006. Although the winds were strong it was the typhoon’s slow progress coupled with heavy rain, dumping an enormous amount of water and causing massive flooding, that did most damage and leading to loss of life over a wide area. Laguna de Bay rose several meters, flooding villages along the shoreline.

Proud to be a botanist

Botanist. That’s right. Not plant scientist or plant biologist. Botanist!

Call me old-fashioned, but I prefer the term ‘botany’ to ‘plant sciences’ or ‘plant biology’ that are now preferentially used to give the study of plants a more ‘modern’ image.

And I’m proud that I received my university education in botany: BSc at Southampton (combined with geography, 1970), and MSc (in genetic resources, 1971) and PhD (botany – biosystematics of potatoes, 1975) at Birmingham. By the time I returned to teach at the University of Birmingham in 1981, the Department of Botany had already become the Department of Plant Biology, a decision made in the late 1970s in the hope of attracting more undergraduates to study plant courses offered as part of the biological sciences degree.

Botany has had a bit of a bad press, I guess. For one thing there’s an image issue. It’s often seen as old-fashioned, the purview of enthusiastic Victorian amateurs like country parsons collecting and studying wild flowers, and perhaps not relevant for today’s society. And there has been a significant decline in teaching plant sciences at university level in the UK. Nothing could be further from the truth. Given that food security is dependent upon the productivity of agricultural systems – all life depends on plants in one way or another – the study of plants is essential for humanity’s survival.

In an interesting article [1], Grierson et al. (2011) ask what are the 100 most important questions for plant science research. They also propose that “We need to radically change our culture so that ‘plant scientist’ (or, if we can rehabilitate the term, ‘botanist’) can join ‘doctor’, ‘vet’ and ‘lawyer’ in the list of top professions to which our most capable young people aspire.”

I’ve had a successful career over 40 years based on botany, one way or the other. So why did I become a botanist in the first place? In high school, I didn’t study biology until I began my GCE Advanced Level courses in 1965. Biology was not taught at my school in earlier years, and only accepted a handful of students for the advanced course. I’d always had an interest in natural history, particularly bird watching, and had harbored ideas at one time of becoming a professional ornithologist. But over the two years of the biology ‘A level’, I came to realize there was likely to be a more secure future in plants, and even the possibility of getting into agriculture in some way, better still if that would take me overseas.

Southampton University was not my first choice, but once I’d attended an interview there, I knew that was where I wanted to study. As a botany-geography undergraduate, I knew that there would be a focus on plant ecology, even though we took the full honours course for two years, and selected modules in the final year. My tutor was Dr Joyce Lambert, Reader in Ecology, who had studied the origin of the Norfolk Broads in the east of England, and shown that they were actually man-made, the result of medieval peat diggings that became flooded. Just before I went to Southampton (and for the rest of her career at Southampton – she retired in 1979) she began working on multivariate methods to study plant communities (with former head of department Bill Williams, who had left Southampton in 1966 to join CSIRO in Australia). I even completed my dissertation on an assessment of vegetation sampling techniques based on quadrat size related to the height of the vegetation (not really a success). I made this study in the Back Forest area of the Roaches in the Staffordshire Moorlands. I measured quadrats along a 200 m transect from open heath to larch-oak woodland dropping steeply to the Black Brook and River Dane. I used a tape recorder with a thumb switch microphone to record the presence and absence of species in each quadrat, using a checklist of species.

As a final year student, however, my interests had already begun to turn from ecology. I took courses on plant speciation and plant breeding with geneticist Dr Joe Smartt, and a special course in flowering plant taxonomy offered by Professor Vernon Heywood of Reading University. Southampton’s own taxonomist, Leslie Watson had emigrated to Australia in 1969, and it was felt that a botany degree without any taxonomy component was not complete. Heywood travelled down from Reading once a week for 10 weeks, giving two lectures each time. This was not one of my specific elective courses for examination, but I decided to sit in and listen – and I was hooked. Linking what I heard in Heywood’s lectures with the plant speciation and plant breeding courses, and ecology was the foundation for my career-long study of plant variation, and entry into the world of plant genetic resources.

But there was one research endeavor that really fired my imagine (and others) – and it’s as good today as when it was originally published in the 1930s, 40s and 50s. In a ground-breaking series of experiments, geneticist/ecologist Jens Clausen, taxonomist David Keck, and plant physiologist William Hiesey, from the Carnegie Institute of Washington located on the campus of Stanford University, studied the adaptation of plants to their environments, the variation in plant populations, and the genetical and physiological basis of the variation they observed.

Establishing a series of experimental stations across California, they undertook transplant experiments in a range of species such as Achillea and Potentilla, to understand the nature of variation and species, and published in a series of monographs Experimental Studies on the Nature of Species.

Similar work had been carried out in Scandinavia by Turesson and in Scotland by Gregor, but the Californian group was, in my estimation, pre-eminent. Thus was the concept of the ecotype established. And the methods of experimental taxonomy and genecology which they developed are used to study the nature of variation in the genetic resources of crop plants conserved in genebanks around the world – and certainly the approach I took with my own work on lentils and grasspea (Lathryus sativus), potatoes, and rice.

Another influence was Missouri Botanical Garden geneticist Edgar Anderson. If you’ve not read his highly entertaining and readable Plants, Man & Life, then grab yourself a copy.

But the most influential concept he developed was introgressive hybridization, the merging of plant species populations through crossing and backcrossing – a phenomenon we believe to have played a major role in the evolution of many crop plants.

Joe Smartt encouraged me to follow a career in plant genetic resources. In fact he was the one who suggested I should apply for a place on the Birmingham MSc course on Conservation and Utilization of Plant Genetic Resources, founded by Jack Hawkes in 1969. Joe had studied the cytogenetics of groundnut (= peanut, Arachis spp.) under Walter C Gregory at North Carolina State University, and joined the Department of Botany at Southampton in 1967. He had also spent time in Northern Rhodesia (= Zambia) working on groundnuts in the 1950s.

And the rest is history, as they say, and I spent the rest of my career studying genetic resources and agriculture in many different countries (Peru, Costa Rica, Canary Islands, Philippines and other countries in Asia).

Some of my own interests have included the species relationships of triploid potatoes, and we have looked at the compatibility relationships between wild and cultivated forms.

These photos show the growth of pollen tubes in compatible (left) and incompatible (right) crosses between wild potato species.

In potatoes and rice we made tens of thousands of crosses to understand the biological relationships between different species.

It’s important to make many crosses when the chances of success are quite low. And we have looked at the morphological and biochemical variation in different plant populations – the ability to study species relationships at the molecular level is throwing a whole new perspective on plant speciation; applications of GIS permit easier mapping of diversity.

One of the concepts that has guided much of my work with genetic resources is the genepool concept developed by Illinois geneticists Harlan and de Wet in 1971 [2]. This allows one to assess the relationship between crops and their wild relatives based on crossability, and the accessibility of different genetic resources that can be used in crop improvement.

I’ve been very fortunate in my career choices – all because of my decision to become a botanist. Who says that botany is an old-fashioned science? Just look through the 100 science challenges I referred to earlier on and you will see just how and why it’s ever more important that we invest in the study of plants.

[1] C. S. Grierson, S. R. Barnes, M. W. Chase, M. Clarke, D. Grierson, K. J. Edwards, G. J. Jellis, J. D. Jones, S. Knapp, G. Oldroyd, G. Poppy, P. Temple, R. Williams, and R. Bastow, 2011. One hundred important questions facing plant science research. New Phytologist 192 (1): 6-12.

[2] J.R. Harlan and J.M.J. de Wet, 1971. Toward a rational classification of cultivated plants. Taxon 20: 509-517.

Early days in Lima – 1973

Potatoes were not my first choice
Hindsight is a wonderful thing. Although I spent more than 20 years studying potatoes – in a variety of guises – that had not been my first choice. I originally wanted to become the world’s lentil expert.

Well, not exactly. When I joined the 1970 intake on the MSc course Conservation and Utilization of Plant Genetic Resources at the University of Birmingham, I quickly decided to work with Trevor Williams on the taxonomy and origin of lentils (Lens culinaris). I wanted to study variation in a crop species that had received little attention; and preferably it had to be a legume species.

Working our way through Flora Europaea, we came across the notation under lentil: Origin unknown. Now that seemed like an interesting challenge, and we began to plan a suitable dissertation project on that basis. I completed my dissertation in September 1971.

Interestingly, unknown to Trevor and me, renowned Israeli expert on crop evolution Professor Daniel Zohary (of the Hebrew University of Jerusalem) had been working on the same problem, and published his results in Economic Botany in 1972 [1], which essentially confirmed the conclusions I’d reached a year earlier.

As it turned out – and this is the hindsight bit – continuing work on lentils was not really an option; and funding for a lentil PhD would have been very difficult to find.

In any case, the MSc course leader Professor Jack Hawkes had, by March 1971, already raised the possibility of spending a year in Peru (see my posts about potatoes in Peru and about Peru in general), which I jumped at. So in January 1973, I landed in Lima, an employee of the recently-founded International Potato Center (CIP).

First impressions
Then, CIP was housed in just a single building on a developing campus in La Molina, on the eastern outskirts of Lima, where the National Agrarian University is located (in fact, just across the road from CIP). In those days, the journey to La Molina from the Lima suburbs of San Isidro or Miraflores (we lived in Miraflores on Av. Larco, close to the cliffs overlooking the Pacific Ocean) took about 20 minutes. Around La Molina it was essentially a rural setting. But even in those days, housing developments were already underway, and today what were once fields of maize are now ‘fields of concrete’. I’m told that the journey can now take forever, and CIP staff often plan to arrive early or depart late just to avoid the horrendous traffic.

But I digress. The CIP building was essentially an empty shell on both floors. This was gradually partitioned to form offices and laboratories, and over the years, new buildings were added. On my first day at CIP (Friday 5 January) I was shown to my ‘office’ on the upper (first) floor. The whole floor at that time was completely open plan from one end to the other, except for one room opposite the staircase that actually had two solid walls either side (the toilets were located on either side), and a wooden panel front. Inside was a desk, a chair, a filing cabinet, and a bookshelf. That was it!

While there were no laboratories as such at CIP until a few months later (the pathologists were using space in a national program laboratory building across the street), we did have access to a couple of screenhouses at La Molina for growing experimental materials, but that was quite a challenge in the heat of the Lima summer from January to April until facilities with some sort of cooling system were constructed.

I must admit I did wonder what I’d let myself in for. There were no established research facilities such as laboratories, I didn’t speak Spanish (although that was rectified in about six months), and went through all the stages of ‘culture shock’.

A planning meeting on germplasm
The following week CIP held the second planning workshop (but the first on germplasm and taxonomy) of a whole series that would be convened over the next decade to help plan its program. The participants were Jack Hawkes, taxonomist Carlos Ochoa (Peru), potato breeder Frank Haynes (North Carolina State University), geneticist Roger Rowe (then with the USDA regional potato germplasm project in Sturgeon Bay, Wisconsin, and later to join CIP in July 1973 as head of the breeding and genetics department), ethnobotanist and taxonomist Don Ugent (Southern Illinois University-Carbondale), and potato breeder Richard Tarn (from Agriculture and Agri-Food Canada, New Brunswick, and a former PhD student of Jack Hawkes), and myself. We made a trip to Huancayo in the central Andes (more than 3000 m above sea level) where CIP proposed to establish its highland field station (more of that below), and also to Cuzco in southern Peru (where I seized the opportunity, with Richard Tarn, of making a day trip to Machu Picchu). In Huancayo, we visited the small, but growing, potato germplasm collection which in those days was being multiplied on rented land.

The field supervisor was a young agronomist, David Baumann, who can be seen in this photo explaining the collection to the workshop participants. Around this time, plant pathologist Dr Marco Soto – who had just returned from his PhD studies in the USA – was named as the head of the Huancayo station.

The arrangements for that meeting say a lot about the early CIP days. We traveled to Huancayo by road, in two Iranian-built Hillman station wagons, one of them driven by the CIP Director General, Richard Sawyer. Another point worth mentioning is the research planning strategy that CIP implemented. Since potato research was strong in many countries around the world, Sawyer decided it would be effective to engage potato scientists from elsewhere in CIP’s research. Not only were they invited to participate in planning workshops, they also received research grants to carry out specific research projects (such as the potato breeding and nematology resistance research at Cornell University, for example), and provide graduate opportunities for students sponsored by CIP. This approach, as well as developing a regional program for research and dissemination, were heavily criticised in the early days of the CGIAR. This was not the approach taken by other centers such as IRRI, CIMMYT, and CIAT for example. It now seems a rather silly opposition, and is more the norm than the exception in how the centers of the CGIAR do business.

So who worked at CIP in the early days?
In Lima, there were only a handful of staff in January 1973 (click on the photo to see the list), me included as a Fellow in Taxonomy, even though I only had a masters degree, and would continue with my PhD research while working for CIP.

Head of plant pathology, and long-time North Carolina team member, Ed French (a US citizen of Anglo-Argentinian ancestry) had already begun to recruit staff. Post-doctoral fellow John Vessey from the UK worked on resistance to bacterial wilt, and he and his wife Marian became close friends (we are still in touch with them), although John departed for CIMMYT in Mexico in 1974, followed by United Fruit in Honduras – more bacterial wilt – before returning to the UK (John was my principal contact for the somaclone project I reported in another post).

At first, there were few internationally-recruited staff, but throughout 1973, the staff increased quite rapidly. Rainer Zachmann, a German plant pathologist working on Rhizoctonia solani, joined in February, followed by Julia Guzman, a late blight specialist from Colombia; Parviz Jatala, a nematologist from Iran; Ray Meyer, an agronomist from the USA; and Dick Wurster as head of the Outreach Dept. , among others. Dick had been working in Uganda prior to joining CIP.

A qualified pilot, Dick brought his plane with him (it had two engines – one at the front, and one behind!), which was also used by CIP to ferry staff to Huancayo on occasion, although we usually made the six hour journey by road. Jim Bryan returned from his leave in the USA to join CIP as a seed specialist.

Among the Peruvian staff were virologist Luis Salazar (who gained his PhD some years later from the University of Dundee in Scotland), nematologist Javier Franco (who studied at Rothamsted for a University of London PhD), and plant pathologist Oscar Hidalgo (who went to North Carolina State University). Just returned from Cornell was Dr Marco Soto (a plant pathologist) who became superintendent of the Huancayo experiment station. About to return from graduate studies overseas were plant physiologists Willy Roca (and his wife Charo) and Fernando Ezeta, and virologist Anna-Maria Hinostroza. Nematologist Maria Scurrah (who was born in Huancayo of German parents, and who spoke Spanish, German and English will equal rapidity) returned from her PhD studies at Cornell in 1972. Entomologist Luis Valencia was mentored by Maurie Semel who was on sabbatical from Cornell. Zosimo Huaman returned from Birmingham in April 1973.

The first support staff  included secretaries Rosa Benavides (who sadly succumbed to cancer just a few years later) and Haydee de Zelaya, caretaker José Machuca, messenger Victor Madrid (who eventually became a very talented member of the communications support team), carpenter Maestro Caycho, and screenhouse technicians, the Gomez brothers – Lauro, Felix, and Walter.

My fiancée Stephanie joined me in Lima in July 1973 and began work as a germplasm expert with the CIP potato collection. We married in October 1973 in the Municipalidad de Miraflores, near to where we were renting a 12th floor apartment on Av. Larco.

[1] Zohary, D. 1972. The wild progenitor and the place of origin of the cultivated lentil: Lens culinaris. Economic Botany 26: 326-332.

Birmingham – a center for potato studies

When the late Professor Jack Hawkes was appointed to a lectureship in botany at the University of Birmingham in 1952, he had already been working on potatoes for more than a decade. And immediately prior to arriving in Birmingham he’d spent three years in Colombia helping to establish a national potato breeding program. From then until his retirement in 1982  – and indeed throughout the 1980s – Birmingham was an important center for potato studies.

The potato germplasm that Hawkes collected (with EK Balls and W Gourlay in the 1938-39 expedition to South America) eventually formed the basis of the Empire then Commonwealth Potato Collection, maintained at the James Hutton Institute in Scotland. Throughout the 50s, 60s, 70s, and 80s Jack also had a large collection of wild potato (Solanum) species at Birmingham. This was a special quarantine collection; in the 1980s for potato quarantine purposes, Birmingham was effectively outside the European Union! For more than two decades Jack was assisted by horticultural technician Dave Downing, seen in the photo below. At the end of the 1980s we decided to donate the seed stocks from Jack’s collection to the Commonwealth Potato Collection, and it went into quarantine in Scotland. As the various lines were tested for viruses diseases they were introduced into the main collection.  Jack used this collection to train a succession of PhD students on the biosystematics of potatoes. I continued with this tradition after I joined the University of Birmingham in 1981. My first student graduated in 1982 (after I had taken over supervision from Jack).

Here is the list of University of Birmingham PhD students who worked on potatoes, as far as I can remember. All of them from 1975 (with the exception of Ian Gubb) had also attended the MSc course on genetic resources:

Richard Lester (UK), 1962. Taught at Makerere University in Uganda, before joining the Dept. of Botany at Birmingham in 1969. Retired in 2002, and died in 2006. Studied the biochemical systematics of Mexican wild Solanum species. The species Solanum lesteri is named after him.

Richard Tarn (UK), 1967. Emigrated to Canada in 1968, and joined Agriculture Canada as a potato breeder in Fredericton, New Brunswick. Retired in 2008. Studied the origin of ploidy levels in wild species.

Katsuo Armando Okada (Argentina), 1970 (?). Retired. Was with IBPGR for a while in the 1980s (?) in Colombia. Studied the origin of Solanum x rechei from Argentina.

Phillip Cribb (UK), 1972. He joined the Royal Botanic Gardens – Kew, and became a renowned orchid taxonomist. Studied the origin of the tetraploid Solanum tuberosum ssp. andigena.

Mike Jackson (UK), 1975. Studied the triploid cultigen Solanum x chaucha. Joint with CIP and Roger Rowe.

David Astley (UK), 1975. Became the curator of the vegetable genebank at Wellesbourne (now the Warwick Crop Centre). Studied the Bolivian wild species Solanum sucrense. The species S. astleyi is named after Dave.

Zosimo Huaman (Peru), 1976. He returned to the International Potato Center (CIP) in Lima, and continued working with the germplasm collection until December 2000; he then began work with several NGOs on biodiversity issues in Peru. Studied the origin of the diploid cultigen Solanum x ajanhuiri. Joint with CIP and Roger Rowe.

Peter Schmiediche (Germany), 1977. He continued working with CIP as a potato breeder (for resistance to bacterial wilt), and was later CIP’s regional leader based in Indonesia. Now retired and sharing his time between Texas (where his children settled) and his native Berlin. Studied the bitter potatoes Solanum x juzepczukii (3x) and S. x curtilobum (5x). Joint with CIP and Roger Rowe.

Luis Lopez (Colombia), 1979. Studied wild species in the Series Conicibaccata.

Lenny Taylor (UK), late 1970s. I don’t remember his thesis topic, but I think it had something to do with tetraploid forms. He joined the Potato Marketing Board (now the Potato Council) but I’ve lost contact.

Lynne Woodwards (UK), 1982. Studied the Mexican tetraploid Solanum hjertingii, which does not show enzymic blackening in cut tubers.

Rene Chavez (Peru), 1984. He returned to the University of Tacna, Peru, but also spent time at CIAT in Cali, Colombia studying a large wild cassava (Manihot spp.) collection. He sadly died of cancer a couple of years ago. Studied wide crossing to transfer resistance to tuber moth and potato cyst nematode. Joint with CIP and Peter Schmiediche.

Elizabeth Newton (UK), 1987? Studied sexually-transmitted viruses in potato. Joint with former CIP virologist Roger Jones (now at the University of Western Australia) at the MAFF Harpenden Laboratory.

Denise Clugston (UK), 1988. Studied embryo rescue and protoplast fusion to use wild species in potato breeding.

Carlos Arbizu (Peru), 1990. An expert on minor Andean tuber crops, he came from the University of Ayacucho. Spent time working in the germplasm program at CIP. Studied the origin and value of resistance to spindle tuber viroid in Solanum acaule. Joint with CIP and principal virologist Luis Salazar (who gained his PhD while studying at the Scottish Crop Research Institute in Dundee).

Ian Gubb (UK), 1991. Studied the biochemical basis of non-blackening in Solanum hjertingii. Joint with the Food Research Institute, Norwich.

Susan Juned (UK), 1994. Now a sustainable technology consultant, Sue is an active local government councillor, and has stood for election to parliament on a couple of occasions for the Liberal Democrats. Studied somaclonal variation in potato cv. Record; this commercial contract research was commissioned by United Biscuits.

David Tay (Malaysia), 2000. He worked in Australia and then was Director of the USDA Ornamental Plant Germplasm Center in Columbus, Ohio, but returned to CIP as head of the genetic resources unit in 2007. He’s now left CIP. I think he worked on diploid cultivated species. Joint with CIP. Not sure why his PhD is dated 2000, as he’d been in CIP in the late 70s.

I also supervised several MSc students who completed dissertations on potatoes (Reiner Freund from Germany, and Beatrice Male-Kayiwa and Nelson Wanyera from Uganda).

The Birmingham link with CIP is rather interesting. In the early 70s, staff at CIP seemed to have a graduate degree in the main from one of four universities: Cornell, North Carolina State, Wisconsin, or Birmingham.

Besides the Birmingham PhD students who went on to work at CIP, my wife Stephanie (MSc 1972, who had been working with the Commonwealth Potato Collection from November 1972 – June 1973 when it was still based at the Scottish Plant Breeding Station – now closed) joined the Breeding and Genetics Dept. at CIP in July 1973.

Roger Rowe, who had been in charge of the US potato genebank in Sturgeon Bay, Wisconsin, also joined CIP in July 1973 as head of the Breeding and Genetics Dept. He co-supervised (with Jack Hawkes) a number of Birmingham PhD students.

With the closure of Jack’s collection at Birmingham we were able to develop other potato research ideas since there were no longer any quarantine restrictions. In 1984 we secured funding from the Overseas Development Administration (now the Department for International Development – DfID) to work on single seed descent (SSD) from diploid potatoes to produce true potato seed (TPS). Diploids are normally self-incompatible, but evidence from a range of species had shown that such incompatibility could be broken and transgressive segregants selected. The work was originally started in collaboration with the Plant Breeding Institute (PBI) in Cambridge, but when the Thatcher government privatized the PBI and sold it to Monsanto in 1988, we continued the work at Birmingham. After a further year we hit a ‘biological brick wall’ and decided that the resources needed would be too great to warrant continued effort. This paper reflects our philosophy on TPS [1]. Another paper [2] spells out the approach we planned.

[1] 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.

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