- Ancient DNA from an Early Neolithic Iberian population supports a pioneer colonization by first farmers. People, not just crops, moved.
- Genetic consequences of using seed mixtures in restoration: A case study of a wetland plant Lychnis flos-cuculi. After a few generations of use for seed production, it’s best to abandon ex situ stocks and go back to the wild populations.
- Creative Commons licenses and the non-commercial condition: Implications for the re-use of biodiversity information. It’s complicated. I wonder if the multi-headed hounds who guard the gates to GBDBH are aware of this. Here’s a blog post.
- Is diversification history of maize influencing selection of soil bacteria by roots? Kinda.
- A horizon scan of global conservation issues for 2012. Perennial cereals make the cut.
- How pristine are tropical forests? An ecological perspective on the pre-Columbian human footprint in Amazonia and implications for contemporary conservation. It doesn’t matter.
- Genetic diversity of carrot (Daucus carota L.) cultivars revealed by analysis of SSR loci. Western and Asian groups, the latter more diverse, because of landraces. But 88 accessions does seem a bit few. And no wilds.
- Mapping of earthworm distribution for the British Isles and Eire highlights the under-recording of an ecologically important group. 28 species! But many gaps. No diversity map. Will send them DIVA-GIS for Christmas.
Getting to grips with hairy vetch
A post over at Biofortified entitled “Will cover crops feed the world?” asked an intriguing question:
Why not take a survey of red clover and hairy vetch germplasm, looking for those that fix nitrogen at high rates, have good winter survival, and decay at a reasonable rate to provide fertilizer for crops the following year, and then combine those traits? (And while you’re at it, you could try to do something about hairy vetch’s horrendous seed yield. Non-shattering trait, anyone?)
Well, I thought to myself, maybe you can find those traits already combined. So I looked on Genesys to see what germplasm of Vicia villosa, or hairy vetch, we have to play with. Quite a bit as it turns out: 1374 accessions from 60-odd countries, conserved in 30-odd genebanks. These are the accessions which have georeferences:
I looked in a little more detail at the USDA collection over at GRIN. As luck would have it, there are data on 40-odd accessions from a 2001 evaluation trial. Among the descriptors recorded are N content and winter survival. I downloaded the Excel spreadsheet, and some quick sorting revealed a couple of accessions which are both high in N and have decent winter survival, eg PI 232958 from Hungary and PI 220880 from Belgium. Another dataset shows that some accessions in the collection are non-shattering. Alas, neither of the previous two accessions were characterized for that trait, or at least I couldn’t find the data online, but I was intrigued to see that PI 220879, also from Belgium, is non-shattering.
I posted Biofortified’s question on Facebook too and Dirk Enneking came back almost immediately with more advice:
Provorov and Tikhonovich suggest that the recently domesticated species such as Vicia villosa are better at N-fix. For non-shattering, try the named cultivars such as Ostsaat etc. and grow them where there is sufficient humidity at harvest time to reduce shattering.
Now, where’s my finder’s fee?
Brainfood: Sorghum core diversity, Indian mango diversity, Montia potential, Assisted migration, Corchorus diversity, Soil DNA, Fire!, Coffee pest, Earthworms
Making life simpler for you, we have created an open Mendeley group for the papers we link to here. If you’re already using Mendeley, feel free to join the group (and use it to suggest papers we might miss). You can also discuss papers there, but frankly, we’d prefer you to do that here. Or on Facebook. Even if you don’t use Mendeley, you can subscribe to the RSS feed from the group and get stuff that way. Are we cool, or what?
- Variation in flowering time in sorghum core collection and mapping of QTLs controlling flowering time by association analysis. 4 QTLs and 7 loci detected under different conditions. Is that, like, a lot?
- Evaluation of genetic diversity among commercial cultivars, hybrids and local mango (Mangifera indica L.) genotypes of India using cumulative RAPD and ISSR markers. Just one big happy family.
- Montia fontana L. (Portulacaceae), an interesting wild vegetable traditionally consumed in the Iberian Peninsula. Aquatic herb has high fibre and lipids. High oxalate too though. Breeders enjoined to get to work. On Montia. Riiiiight.
- Taking stock of the assisted migration debate. It’s REALLY complicated. Scientists are not that great at explaining it. More work needed all round. But now we have fancy diagrams.
- Genetic diversity and relationships in Corchorus olitorius (Malvaceae s.l.) inferred from molecular and morphological data. Out of Africa. Ethiopia, to be exact.
- Meta-barcoding of ‘dirt’ DNA from soil reflects vertebrate biodiversity. Wonder whether it works with agricultural ‘dirt.’
- The human dimension of fire regimes on Earth. Entertaining gallop through the history of the use of fire to manage landscapes around the world and down the ages. Need to catch my breath here.
- Some like it hot: The influence and implications of climate change on coffee berry borer (Hypothenemus hampei) and coffee production in East Africa. That title just had to come sometime, didn’t it.
- A critique of earthworm molecular phylogenetics. So apparently “molecular phylogenetics is now on the verge of revolutionizing earthworm systematics.” Beyond satire.
Brainfood: Millet diversity, Maize landraces and hybrids, Potato carotenoids, Wheat domestication, Value chains, Population modeling, Rhizobium diversity, Yeast diversity, Core collection, Wild Zea, Cotton geneflow, Forest fires, Forest diseases
- Identification of trait-specific germplasm and developing a mini core collection for efficient use of foxtail millet genetic resources in crop improvement. All the goodness of Setaria italica diversity in just 35 accessions.
- Farmers’ adoption of maize (Zea mays L.) hybrids and the persistence of landraces in Southwest China: implications for policy and breeding. There are pros and cons to both hybrids and landraces, and participatory plant breeding could bring together the pros and get rid of the cons.
- Carotenoid concentrations of native Andean potatoes as affected by cooking. Some carotenoids were decreased by boiling, others not so much.
- Domestication evolution, genetics and genomics in wheat. A big summary of what we know so far and what we might learn by sequencing some wild wheat relatives.
- Research Principles for Developing Country Food Value Chains. Multidimensional demands by consumers demand multidimensional research by scientists. I think.
- Range shift promotes the formation of stable range edges. Species can move for reasons other than climate change.
- Genetic diversity of rhizobia associated with indigenous legumes in different regions of Flanders (Belgium). A new genus? In Flanders?
- Assessment of yeast diversity in soils under different management regimes. Type of management and vegetation has an effect. Yeah, well, you had to be there.
- Efficiency of PowerCore in core set development using amplified fragment length polymorphic markers in mungbean. Software for making core collections seems to work.
- Three new teosintes (Zea spp., Poaceae) from México. New entities, apparently. Species? Subspecies? More study needed, natch.
- Recent long-distance transgene flow into wild populations conforms to historical patterns of gene flow in cotton (Gossypium hirsutum) at its centre of origin. Four out of eight populations have transgenes.
- Effectiveness of strict vs. multiple use protected areas in reducing tropical forest fires: A global analysis using matching methods. Indigenous areas and multiple use are best.
- The sudden emergence of pathogenicity in insect–fungus symbioses threatens naive forest ecosystems. It can happen anywhere, any time.
Nibbles: Rice biofortification, Wild walnuts, Himalayan agriculture, Eating invasives, Gissen on wine, Medicinal fungus, Soil initiative, Ag development in S Sudan, AVRDC and WorldFish, Value chains
- Boffins to rice: Pump it Up!
- Saving the nuts of Central Asia.
- Nepali women abandon hybrids for landraces and community seedbanks. Weird thing is that it’s a WWF project. But where are the extensionists? If only they had listened in Bhutan. Ok that packed a lot of links in there.
- Never saw an invasive I didn’t like.
- Architectural theorist tackles wine. Not many people hurt.
- Turns out 57 insect species can play host to that famous medicinal fungus that led to war between Tibetan communities a couple of years back. Which helps how?
- An envelope is opened at FAO.
- Seeds come to South Sudan. One hopes they are of the right kinds. And that somebody is collecting what was there before. Maybe someone should call WWF.
- You want vegetables with your fish?
- Crops for the Future says not all middlemen bad.