- Size isn’t everything, genome edition.
- Nutrient efficiency of agriculture, phosphorus edition.
- Win-wins, fisheries edition.
Nibbles: Rice conservation and use, Tunisian genebank, Buno, Popcorn, Sustainability, Brazilian social networking, Strawberry breeding, Sunflower genomics, Climate change and fisheries
- Lots of Indian rice in the IRRI genebank. Any of it being used to develop drought-tolerant varieties?
- Lots of journalists in the Tunisian genebank.
- How they make coffee in Ethiopia.
- How they make popcorn the world over. You sometimes get popcorn (or popped sorghum) with coffee in Ethiopia, now I think of it. And since we’re on an Ethiopian kick, fancy some enjera? Gary Nabhan did.
- “Productivity vs. sustainability is a ‘false choice.’” Well I never. And probably not news to these people either, or these. But to these guys?
- A Twitter roundup from Embrapa.
- Ugly hybrid of two wild strawberries may cause allergies.
- Explanation of evolution of doubled genes in wild and cultivated sunflowers certainly causes pain in brain.
- Some good climate change news for the Atlantic croaker. Being a glass-totally-empty kinda guy I predict it tastes like shit.
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?
Nibbles: Truffles, Botanicals, Cell phones, Child nutrition, Chocolate, Georgia
- Truffle genome (about to be) sequenced. Pigs unimpressed.
- Lunar influence on botanicals. Fascinating.
- Cell phones for germplasm documentation and taxonomic identification.
- Video of John Hoddinott of IFPRI discussing award-winning Lancet article on the effects of child nutrition on adult income.
- Climate-ready cacao, anyone?
- GEF agrobiodiversity project in Georgia a success story. See why.
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.