- Maximizing genetic differentiation in core collections by PCA-based clustering of molecular marker data. It works. In simulations, to be fair.
- Study of rare traditional pork breeds concerning the aspect of biodiversity conservation. Mangalitsa is what you want, apparently.
- Open Variety Rights: Rethinking the Commodification of Plants. A “protected commons”? Sounds a bit like the ITPGRFA to me.
- Natural and cultural heritage in mountain landscapes: towards an integrated valuation. Yeah, but does your cultural heritage include things like agricultural biodiversity?
- Fortifying plants with the essential amino acids lysine and methionine to improve nutritional quality. Conventional breeding hasn’t worked. But has it been for want of trying? Just askin’.
- Genetic and phenotypic diversity in a germplasm working collection of cultivated tropical yams (Dioscorea spp.). Relationships among species, synonyms, duplicates, yada yada.
- Roman food refuse: urban archaeobotany in Pompeii, Regio VI, Insula 1. Romans ate a Mediterranean diet. Still no cure for cancer.
- Genetic bases of rice grain shape: so many genes, so little known. Why bother? Just askin’.
Nibbles: Survival seeds, Turkish agrobiodiversity, Mainstreaming nutrition, Hot times for conservation, Ethiopian sesame, Conserved DNA
- Survival seed bank in the news again. Must be Christmas.
- Turkish nibbles: wine, pictachios. That wine one will no doubt run and run.
- How to make sure nutrition gets a seat at the agricultural development table. And Danny breaks it down for ya.
- What leads to spurts in conservation effort? In situ only, but instructive.
- Sesame is big business in Ethiopia.
- Boffins find yet another bit of DNA that will save the world.
Chicken salad
Ultimately, researchers hope to get ancient DNA from well-dated bones. But “replicable DNA has been as rare as hen’s teeth,” Zeder says, thanks to contamination issues and tropical climes that degrade DNA. One team recently claimed to have mtDNA from an ancient Polynesian chicken bone in Chile — a dramatic find that would prove Polynesians reached the Americas before Columbus — but the find has been questioned as possibly contaminated (Science, 11 June 2010, p. 1344). Techniques are improving, however…
That cliff-hanger is a quote from a rather attractive Science spread enticingly entitled “In Search of the Wild Chicken,” reproduced a few days ago in an ILRI blog post. It’s a great story, but one wonders why there was not at least a mention of the recent paper in PLOSOne “Investigating the Global Dispersal of Chickens in Prehistory Using Ancient Mitochondrial DNA Signatures.” Those authors, after all, had 92 — count them!! — archaeological chicken bones to play with, and spun a convincing tale of “multiple prehistoric dispersals from a single Asian centre” from their analysis. Is there something of a rivalry developing in the highly competitive world of chicken DNA? Probably not, and no doubt we’ll be getting lots of cease and desist notices from the denizens of said world for even suggesting such a thing.
Nibbles: Desert afforestation, Breadfruit, Sustainable tea, Biofortification, Cassava breeding, Wheat breeding, Ancient microbrewery
- The Sahara Forest Project: what could possibly go wrong?
- Maybe they should try breadfruit. Or avocados. Or ask this guy for advice.
- Not for all the sustainable tea in China!
- Or all the high-Fe pearl millet in India.
- Or all the wild chickens in South Asia.
- Cassava gets the genomic selection treatment. Maybe wheat too?
- Did someone mention beer?
Brainfood: Spanish terraces, Flower patches, Population ecology, Maize germplasm use, Seed info system, Maize and CC, Medicago predation, Species richness prediction, Rice salt-tolerance
- The genesis of irrigated terraces in al-Andalus. A geoarchaeological perspective on intensive agriculture in semi-arid environments (Ricote, Murcia, Spain). They were built very early on, on a specific soil type, by first burning the vegetation and then essentially inverting the soil profile.
- Creating patches of native flowers facilitates crop pollination in large agricultural fields: mango as a case study. Sweet.
- The ecology of plant populations: their dynamics, interactions and evolution. A whole special issue. Most intriguing is perhaps review of plant-pollinator interactions on the Galapagos. All very important for in situ conservation of crop wild relatives.
- Diversity in global maize germplasm: Characterization and utilization. Three priorities: phenotyping, phenotyping, phenotyping.
- Phytotracker, an information management system for easy recording and tracking of plants, seeds and plasmids. They could have used GRIN-Global, but I guess that doesn’t track plasmids.
- Increasing influence of heat stress on French maize yields from the 1960s to the 2030s. Any day with maximum temperature above 32°C is bad, and their recent increase has led to yield stagnation. They are going to increase further, which means that the French are going to have to find a 12% increase in base yields by 2035 or eat less maize. Do they in fact eat any maize now? What countries are now like what France will be like in 2035?
- Combined impact of multiple exotic herbivores on different life stages of an endangered plant endemism, Medicago citrina. IUCN says it’s endangered. Rabbits, mice and rats are important parts of the problem.
- Estimating species richness: still a long way off!. Bummer.
- New allelic variants found in key rice salt-tolerance genes: an association study. A couple possibly interesting mutations identified by EcoTILLING bunch of IRRI accessions. We shall see if anything comes of them. Actually, how will we find out if something does? I hope the info will go back into the IRRI genebank documentation system.