Category: Indigenous knowledge systems

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Prota4U: stopped making sense.

I’ve only lately begun to sip from the firehose that is Twitter. Many things about it puzzle me, but not unduly. One thing I do find odd is the feed called Prota4U. It’s an arm of The Prota Foundation, and Prota stands for Plant Resources of Tropical Africa. The Foundation’s aims are entirely laudable:

It intends to synthesize the dispersed information on the approximately 7,000 useful plants of Tropical Africa and to provide wide access to the information through Webdatabases, Books, CD-Rom’s and Special Products. … The objectives are to bring the published information, now accessible to the resourceful happy few, into the public domain. This will contribute to greater awareness and sustained use of the ‘world heritage of African useful plants’, with due respect for traditional knowledge and intellectual property rights.

One could quibble with the details, but the overall idea is sound. Prota4U — groovy to the nth degree — publishes an endless stream of tweets, roughly one every three minutes while it is awake, that don’t link to anything, often don’t say much, and frequently have nothing to do with useful plants of Tropical Africa. This particular rant was occasioned by this tweet:

Avena sativa — It has a floury texture and a mild, somewhat creamy flavour.

Fascinating. Just the thing to nibble on with my breakfast oats. But so what? And the tweet doesn’t go anywhere either. Annoyed, I Googled that descriptive phrase. And found it in two places. One, Plants for a Future’s database entry for Avena ludoviciana. The other, this tweet from Prota4U:

Avena byzantina – It has a floury texture and a mild, somewhat creamy flavour.

That too goes nowhere.

Of course in the greater scheme of things what Prota does with its information is no concern of mine, and I could simply stop following. I’m just totally puzzled by what it thinks it is doing. Someone, anyone, put me out of my misery, please.

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Nibbles: Rice conservation and use, Tunisian genebank, Buno, Popcorn, Sustainability, Brazilian social networking, Strawberry breeding, Sunflower genomics, Climate change and fisheries

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Measuring diversity in Tibetan walnuts

You collect leaves from 220 walnut trees of two morphologically very distinct species (Juglans regia and J. sigillata) from two unrelated groups of families of villagers in each of six different villages in Tibet. You get the gene-jockeys to do their microsatellite stuff on the leaves. You calculate the contribution of species, of the kin relationship of the growers and of village to genetic diversity. You expect the biggest genetic differences to be between species.

You are wrong.

Yes, the “species,” which look totally different, are in fact indistinguishable genetically. But there were significant differences among villages, and smaller but still significant differences between unrelated families of farmers within villages. So, you might be particularly interested in certain traits, for improvement say (and so are the farmers: walnut landraces in this part of Tibet are often named after fruit phenotypes). But — in this case — morphology is not a great guide to the totality of the underlying genetic diversity. So you can’t use it alone for conservation.

Which is also the conclusion researchers in Benin arrived at in their study of another tree, akee (Blighia sapida), also just out. A conservation and use (domestication, in this case) strategy “should target not only the morphotypes recognized by local populations but should also integrate the population genetics information.”

Does this amount to a general rule?

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Nibbles: Truffles, Botanicals, Cell phones, Child nutrition, Chocolate, Georgia

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Not nibbles: on women, sweetness, reinventing the CGIAR, tomatoes and seed swaps

Notes from all over: In Vietnam, a woman working on the conservation of indigenous livestock breeds — Professor Le Thi Thuy — has won the 2009 Kovalepskaia Award from the Alexander von Humboldt Foundation in Germany. ILRI’s blog post on the award tells us more about Kovalepskaya (a pioneering Russian mathematician) than about Professor Thuy or the project she directs. But we’re here to tell you that pigs may be involved.

In Australia, a casual mention of sugarbag flies took me to a post about the Weipa mission in “North Queensland on the west side of Cape York, the pointy bit at the top”. There’s a lot more to this post than the heritage of honey and how to make good use of it; not as sustainably as you might imagine, in many cases. In any case, it is a great read.

In France, right now, and elsewhere at other times, the burning question on everyone’s lips: Are Gates and CGIAR a good mix for Africa? We’re not going to rehearse all the old arguments here — SciDev.net does that for us. But we might be even bolder and ask whether the new CGIAR will be a good idea not just for Africa but for the hungry everywhere. Maybe not …

In academe, an odd paper in Nature Genetics focuses on a single gene that can boost tomato yields by 60% or some. Sure, that’s not going to feed the world, but it might make ketchup supplies more secure. The press release casts the discovery as an explanation of heterosis, which seems like overegging the pudding, but perhaps that’s just me.

In the informal seed sector, two posts that illuminate a different way of spreading agricultural biodiversity. The Guardian (no, not that one, the one that “covers Prince Edward Island like the dew”) reports on a local meeting of Seeds of Diversity Canada. I wonder how many potato varieties there are on PEI. And over at Our Earth/Ourselves, Madronna Holden ruminates on How to feed the world. A big part of her answer: A Propagation Fair.