Genetic diversity

February 6, 2012February 6, 2012

Consolidation in the seed industry

We’ve written before about consolidation in the seed industry making the same tired joke that I want to make again now, that a picture is worth 1000 words. It doesn’t hurt to stay up to date though, which is why I am grateful to Resources Research for finding, and colouring in, the diagram from the USDA report on Research Investments and Market Structure in the Food Processing, Agricultural Input, and Biofuel Industries Worldwide.

The USDA report is not, as far as I can tell, anything to do with the US Department of Justice’s investigation of antitrust practices in the seed industry, announced a couple of years ago. So what has become of that? Anyone know?

February 6, 2012February 6, 2012

Brainfood: Falcons, Wild soybean squared, Horse domestication

Effects of Introducing Threatened Falcons into Vineyards on Abundance of Passeriformes and Bird Damage to Grapes. Potential savings of US$234/ha for Sauvignon Blanc, more for Pinot Noir.
Genetic characterization and gene flow in different geographical-distance neighbouring natural populations of wild soybean (Glycine soja Sieb. & Zucc.) and implications for protection from GM soybeans. There is a small amount of outcrossing, which decreases with distance. GM crops should be grown far from wild populations, certainly more than 1.5km. And we can work out better ways to collect for ex situ conservation.
Phylogenetic relationships, interspecific hybridization and origin of some rare characters of wild soybean in the subgenus Glycine soja in China. Intermediate forms are closer to the wild than the cultivated species.
Mitochondrial genomes from modern horses reveal the major haplogroups that underwent domestication. A diversity of maternal lines were domesticated about 150,000 years ago, leading to about 18 modern haplogroups. One of them is only found in the only remaining wild horse, E. przewalskii.

February 2, 2012February 2, 2012

How to react to emergencies

From early 2000, various agencies and individuals involved in livestock relief work began to question the quality and professionalism of their interventions.

Wow, thanks for sharing. Anyway, out of that crisis of self-esteem was LEGS born, the Livestock Emergency Guidelines and Standards. It’s not immediately clear to me after a brief browse of the website to what extent agrobiodiversity considerations come into these standards and guidelines, but I’ll explore some more and get back to you. Anyone out there aware of a similarly formalized initiative for seeds? It’s not as if guidelines for seed interventions are not needed. But they may be there already for all I know, embedded in the WFP and FAO seed relief playbooks.

LATER: And indeed they are. Good to know. Thanks to Tom Osborn from FAO.

January 30, 2012February 8, 2012

Brainfood: Tea, NGS, Grandmothers, Anti-scorbutics, Barley population structure, Climate change below ground, Rice

Genetic structure and diversity of India hybrid tea. It’s complicated. It’s important because the success of tea outside its core are is due to hybridization between Indian and Chinese types in Assam starting in 1875. It’s limited.
NGS technologies for analyzing germplasm diversity in genebanks. That’s Next-Generation Sequencing. Can be used to “identify patterns of genetic diversity, map quantitative traits and mine novel alleles.” Recommendation is for “genotyping by sequencing” to be applied stepwise, starting with a core collection. That’ll be complicated, but the real bottleneck will be the phenotyping.
The role and influence of grandmothers on child nutrition: culturally designated advisors and caregivers. Wise up, nutrition advocates. You are, apparently, ignoring egg-suckers, a primary force for good.
The importance of eating local: slaughter and scurvy in Antarctic cuisine. Who needs oranges when you have fresh penguin at hand?
Islands and streams: clusters and gene flow in wild barley populations from the Levant. There is ecogeographic patterning in the wild material, once you remove the effect of recent admixture with cultivated barley. Geneflow is more N to S than vice versa.
Global change belowground: impacts of elevated CO2, nitrogen, and summer drought on soil food webs and biodiversity. It’s complex, really complex; increased CO2 and N may result in new, simpler belowground assemblages.
Rice and Language Across Asia: Crops, Movement, and Social Change. An entire issue of Rice journal.

January 27, 2012January 27, 2012

Any crops, or crop wild relatives, in the eastern Andes?

Well, of course there are. I mean, there must be. But we can’t be sure, at least not as far as this paper in BMC ecology is concerned. The abstract of Plant and animal endemism in the eastern Andean slope: Challenges to conservation tells us that “The Andes-Amazon basin of Peru and Bolivia is one of the most data-poor, biologically rich, and rapidly changing areas of the world” and goes on to say that the scientists “mapped ecological systems, endemic species concentrations, and irreplaceable areas with respect to national level protected areas”. It concludes:

We found that many endemic species and ecological systems are lacking national-level protection; a third of endemic species have distributions completely outside of national protected areas. Protected areas cover only 20% of areas of high endemism and 20% of irreplaceable areas. Almost 40% of the 91 ecological systems are in serious need of protection (=< 2% of their ranges protected).

Are any of the plants they studied wild relatives of crops? How about actual crops? Anyone able to comment?