Starch and human diversity

Human diversity and agricultural biodiversity interact. The variation that exists between and within crops and livestock products in nutritional content is to some extent matched by — and indeed there is evidence that in some cases it has driven — genetic variation between and within the human populations that make use of them. We’ve blogged about this with regard to lactose intolerance and predisposition to iron deficiency. Now comes a study 1 linking variation among human populations in the number of copies of the amylase gene with the amount of starch in their diet 2

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Bigger not necessarily better in agrobiodiversity

Jeremy says we sound like a broken record on the lack of agricultural thinking in biodiversity circles at times, and he’s right of course. More charitably, it could be thought of as judicious use of a leitmotif. In which case another one would certainly be the unfortunate dearth of information on nutritional composition at the variety or accession level, certainly as compared to morphological and agronomic information. The reason for that is that genetic resources scientists and breeders have been more interested in things like yield and disease resistance. That’s had consequences.

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Green Millennium Revolution Villages debated

I’ve blogged a few times before about the Millennium Villages. An initiative of the Earth Institute at Columbia University launched in 2004, the Millennium Villages project aims “to demonstrate how the eight Millennium Development Goals can be met in rural Africa within five years through community-led development.” 3

Pedro Sanchez, director of the Millennium Villages Project, The Earth Institute at Columbia University debated the project, and also Africa’s proposed new Green Revolution (another frequent subject hereabouts), with the anthropologist Paul Richards of Wageningen University yesterday at the Development Studies Association Annual Conference. That’s going on at the Institute of Development Studies at the University of Sussex in the UK.

Would have been great to be there, and ask why it is that supporting the Millennium Villagers manage and enhance their agrobiodiversity doesn’t seem to be much on the agenda. But here’s the next best thing: a description of the encounter, one of a series of entries on the conference you’ll find at The Crossing, the blog of the STEPS Centre. 4

Here’s an intriguing snippet from the blog:

Richards says the Green Revolution induces spread of innovation by showing the seed system the “correct” pattern. But an alternative can be based on unsupervised learning that already takes place, he adds, whizzing through some very big and interesting ideas very quickly.

Kinda makes you wish you’d been there in person, doesn’t it?

US agricultural assistance to the vulnerable

The US Bureau of International Information Programs has been producing “a series of articles on U.S. food aid and agricultural assistance for vulnerable populations around the world.” The fifth is just out, and this is how it starts:

Scientists from the United States and other nations want to create another “green revolution,” particularly in Africa, that would help poor countries better meet their own food needs and the demands of export markets.

Within governmental, university and private-sector partnerships, researchers are working on new agricultural technologies that can help poor countries end food scarcity and malnutrition.

The article then goes on to list various examples of US scientists working with national agricultural research programmes around the world and CGIAR centres to develop such innovations as “improved crop varieties, more effective fertilizers, new livestock vaccines and new food-processing techniques.”

Which is fine. But why not even a passing mention of the National Plant Germplasm System? At over 450,000 accessions, the genebanks of the NPGS are second only to those of the CGIAR in the amount of agrobiodiversity they conserve. That’s a lot of raw materials for innovation.