- South Sudan crisis affecting its livestock too.
- Sugar, spice, and everything nice in Zanzibar.
- The secret to sustainable fisheries: recycling waste.
- Wheat going to be hit by heat.
- The history of growing food in Cape Town.
- More from the University of Reading’s cacao quarantine facility. With video goodness.
- You can get Austrian camel cheese at the Jaipur Literary Festival.
- Khan Academy does biodiversity.
Brainfood: Safflower diversity, Afghan wheat diversity, Cassava diversity, SP drought tolerance, Olive diversity, Community genebanks, Organic yield meta-analysis, On farm success, Standardizing phenotyping, Wild collecting
- Assessment of Genetic Diversity and Population Structure in a Global Reference Collection of 531 Accessions of Carthamus tinctorius L. (Safflower) Using AFLP Markers. Bayesian analysis of genetic diversity of global (43 countries) collection held in India reveals 19 geographic groups, with most diversity in the Near East and Iran–Afghanistan regions.
- Molecular evaluation of orphan Afghan common wheat (Triticum aestivum L.) landraces collected by Dr. Kihara using single nucleotide polymorphic markers. Analysis (Bayesian, natch) of genetic diversity of over 400 wheat landraces collected 1950-1970 and conserved at the Kihara Institute for Biological Research, Japan reveals agroecological patterning and hotspot in Badakhshan province.
- Sources of pest resistance in cassava. Analysis of 89 trials over 25 years involving the CIAT cassava collection identifies 129 landraces with high resistance to thrips, 33 to green mites and 19 to whiteflies.
- Screening sweetpotato genotypes for tolerance to drought stress. Days to permanent wilting point (DPWP) points to 8 promising clones in Kenya.
- Olive domestication and diversification in the Mediterranean Basin. About 400 wild and cultivated accessions divide up into W, central and E groups and show evidence of admixture among them and local domestication events.
- The Multiple Functions and Services of Community Seedbanks. More than just conservation.
- Diversification practices reduce organic to conventional yield gap. More data and fancier maths finds a lower organic yield gap (20%), which is halved by multi-cropping and crop rotations.
- Conserving landraces and improving livelihoods: how to assess the success of on farm conservation projects? All you need is two graphs.
- Finding Our Way through Phenotypes. “We urge all biologists, data managers, and clinicians to actively support the development, evaluation, refinement, and adoption of methodologies, tools, syntaxes, and standards for capturing and computing over phenotypic data and to collaborate in bringing about a coordinated approach.” Amen.
- Wild food in Europe: A synthesis of knowledge and data of terrestrial wild food as an ecosystem service. 65 million people collect, and at least 100 million consume, wild food. But only 81 plants? Thought it would be more. But even so, quite an ecosystem service.
All maize, all the time
Lots on maize on the interwebs lately. First, there was a Nature Plants paper on the origin of the crop in the southwestern US, comparing DNA from ancient cobs with that from Mexican landraces:
“When considered together, the results suggest that the maize of the U.S. Southwest had a complex origin, first entering the U.S. via a highland route about 4,100 years ago and later via a lowland coastal route about 2,000 years ago,” said Jeffrey Ross-Ibarra, an associate professor in the Department of Plant Sciences.
A separate article in the journal summarized the results and set them in a wider context:
As genomic and palaeo-genomic studies have become more common, it has become increasingly clear that virtually every domestic plant and animal has incorporated genomes of numerous populations, including many that were not involved in the original domestication process. For example, although grapes, apples and pigs were domesticated outside of Europe, admixture with native wild European species has been so significant as to obscure the geographic origins of the modern domestic populations.
Meanwhile, the controversy over how to measure genetic erosion in maize continues, though I’m afraid in this case only the extract is free.
Which all means that the rather nice learning resource on maize domestication at the University of Utah, which I coincidentally recently came across, may need to be tweaked a bit.
Incidentally, if you plug Zea into the Native American Ethnobotany database at the University of Michigan, also a serendipitous find over the holidays, you’ll see that maize was far from being just a food plant.
There are even a couple of historical maize specimens included in the beta version of the new data portal of the Natural History Museum in London, which seems to be getting the softest of launches just now. Great to browse through. Not sure what kind of launch Brazil’s new(ish) biodiversity information system (SiBBs) got, but it too features maize records, over 400 in this case, though only 10 georeferenced. The source of most is given as “Dados repatriados – United States (no coordinates)”, which means that they came from GBIF, and in the case of maize are probably therefore mostly from GRIN. As I said a couple of posts ago for wheat, data sure does get around online.
Nibbles: Tibetan tea, Fancy maps, Fermented foods, ICIPE bioinformatics, Bull Story, Bee comeback, Men are from Mars, Hot crops
- What I really need today is some Tibetan amdo milk tea. Very parky out.
- Failing that, these cartograms will keep me warm.
- This list of supposedly amazing agriculture maps is only meh, though. Needed more cartograms.
- Oh wait, there are other fermented options out there.
- ICIPE gets into Big Data.
- Toystory has some big data of his own. Worrying perhaps to think what he’s done to the diversity of the breed, but let’s not be churlish about his achievement. At least he wasn’t a Nazi.
- UK welcomes back some bees.
- There was a big UC Davis–Mars Symposium yesterday on “An exploration of scientific discovery, innovation and collaboration in food, agriculture and health.” Some of it was on Twitter.
- Roundup of crop wild relatives etc. research at US Davis.
One wheat database to rule them all
Interesting to see Brockwell Bake, of all people, come up with an online database which
…brings together publicily available data for around 398,000 wheat lines from many wheat germplasm collections including the European Wheat Database, the Vavilov Insitute (Russia), the Australian winter cereals collection, USDA/GRIN (USA), CIMMYT, ICARDA and the Nordic Gene Centre with additional collection site information from FIGS plus pedigree, synonym and genetic data from GRIS and gene symbol and class information from the Catalogue of Gene Symbols to create a central point to help you find wheat lines of interest to you.
In terms of coverage, that’s not far short of what Genesys has, which is 415,070 accessions. Online data does get around…