- From GBDBH, a light glimmers: browse and search records of crop collecting missions.
- “Variations in early-season temperatures may alter substantially grapevine yield formation.” For Cab Sauv at any rate.
- Mixture of beans as good as resistant variety against anthracnose disease.
- Genome inversion spurs ecotypic differentiation.
- A review of medicinal plant markets.
- Today’s huge global dataset: “threats to human water security and freshwater biodiversity in global river systems.”
The geography of black rice
Sometimes it pays to spend some time in Genebank Database Hell, if you can fight through the pain.
You may remember a piece recently about the antioxidant properties of black rice. But where does black rice come from? Well, hanging around with the Genesys and GRIN-Global crowd in the past couple of days has allowed me to come up with this map in answer to that deceptively simple question.
In yellow are all the rice accessions from Asia which have coordinates, as recorded in the IRRI database, EURISCO and GRIN. In red are the black rice accessions.
You’d have thought such a map would be pretty easy to make. But you’d be wrong. I had to get an Excel spreadsheet from IRRI with the characterization data, ((For which many thanks!)) and mash it up with the passport data in Genesys for the same accessions, and then export two separate kmz files and fiddle around in Google Earth. ((Thanks to Google for the Pro license!)) Well, they don’t call it Genebank Database Hell for nothing. But it is getting better, slowly but surely.
Spatial datasets continue to proliferate, and evolve
A few more huge spatial datasets for you this morning, as I deal with jet-lag in a Maryland hotel room at 4 am.
Today there’s a high resolution dataset of the population of Africa. And an analysis of wetland protected areas. ((See in particular the map at the end of the paper superimposing Ramsar sites on the Vavilov Centres of Origin.)) And finally a global dataset of particulate matter pollution. This is presented from a human health perspective, but it could have applications in agriculture too. 
I still want to know who’s keeping track of this stuff. Maybe you don’t need to, you can just google as the need arises, but somehow I doubt it. Would love to hear from the CGIAR’s spatial data consortium folks, if they’re listening.
Meanwhile, one of the participants in that consortium has announced that they’re updating one of their iconic products, the now oldish “Atlas of the Common Bean (Phaseolus vulgaris) in Africa.” 
How long before they mash it up with that population dataset? And with the data on the location of genebank accessions, for example from Genesys.
Not that it hasn’t been done before, in a very crude way, as you can see in the map in Figure 2 below.
Europe maps its soil biodiversity
The Land Management & Natural Hazards Unit of the EU’s Joint Research Centre has just announced the publication of a European Atlas of Soil Biodiversity. Here’s the map showing where soil biodiversity is most at risk.
This is part of JRC’s European Soil Database, which complements similar soil mapping projects for other parts of the world. Grist to the FIGS mill. Here, for example, is the map of saline soils in Europe. Seems like Spain and Hungary may be the places to go if you’re looking for salt-tolerance in crop wild relatives.
Meanwhile, in England they’re worried about how effective their protected areas are at, well, protecting biodiversity, though I’m not sure to what extent that includes the soil kind. And since we’re on the subject of maps, here’s one of the protected area network of England (Tier 1 is the highest level of protection).
We’ve noted here before how our friend Nigel Maxted and his co-workers at the University of Birmingham are working to have crop wild relatives included in the thinking about protected areas in the UK. We know from their research that in fact many important crop wild relatives fall outside the protected area network altogether. It would be interesting to know to what extent these species were considered in the review of the effectiveness of the system.
Nibbles: Permaculture, Bird flu, Malnutrition, Roots & tubers in E Africa, Sweet potato
- Perennial fodder crops to the rescue.
- Cool bird flu maps. GIS to the rescue.
- Persistent malnutrition? We know how to fix it. That’s the tragedy. Meanwhile, let’s consult the e-atlas.
- Cassava and potato to the rescue.
- Orange+purple sweet potatoes to the rescue.