- New edition of the Atlas of Common Bean Production in Africa still doesn’t have localities of genebank accessions.
- Community seed banks have genebank accessions in Kenya and India.
- Canadian stamps have crabapple varieties that are probably genebank accessions somewhere.
Rooting for consumers
The International Journal of Food Science + Technology has a special issue out that sounds extremely interesting. Here’s how the introductory editorial, led by Dominique Dufour, describes it.
“Consumers have their say: assessing preferred quality traits of roots, tubers and cooking bananas, and implications for breeding” special issue, brings together new knowledge about quality traits required for roots, tubers and bananas (RTB) varieties to successfully meet diverse user preferences and expectations, along the variety development and RTB value chains (production, processing, marketing, food preparation, consumption). Key RTB crops in sub‐Saharan Africa are cassava, yams, sweetpotatoes, potatoes and bananas/plantains. They are mainly consumed directly as boiled pieces or pounded in the form of smooth, not sticky, and stretchable dough. They are also stewed, steamed or fried. Cassava, the most widely grown RTB, is generally boiled, stewed or steamed in Eastern and Southern Africa, and in West and Central Africa is usually processed directly into derivative products, e.g. whole root fermentation through retting or heap fermentation; fermentation/dewatering of the mash. Biophysical and social knowledge presented in this issue help elaborate goals for both the processing unit operations (food scientist control) and variety traits (breeder control).
In a perfect world, I’d do a deep-dive Brainfood on the whole thing, but that’s looking highly unlikely at the moment, so let me whet your appetite with this nice illustration from the paper “Cyanogenic, carotenoids and protein composition in leaves and roots across seven diverse population found in the world cassava germplasm collection at CIAT, Colombia.”
All the papers are open access. Anyone out there want to help me out with a dedicated Brainfood? Maybe go halves?
Brainfood: Extra livestock edition
- Resilience and livestock adaptations to demographic growth and technological change: A diachronic perspective from the Late Bronze Age to Late Antiquity in NE Iberia. The changing balance between sheep, cattle and pigs through time was driven by socio-economics more than environment.
- Heat stress will detrimentally impact future livestock production in East Africa. 4-19% of livestock production will have more heat to cope with.
- Pastoralism in the highest peaks: Role of the traditional grazing systems in maintaining biodiversity and ecosystem function in the alpine Himalaya. A ban on grazing would be counter-productive.
- The evolving interface between pastoralism and uncertainty : reflecting on cases from three continents. Adaptive herd management, livelihood mosaics, persisting mobility, reticular territories, and articulated social networks have been enough, but for how long more?
- Redefinition of the Mora Romagnola Pig Breed Herd Book Standard Based on DNA Markers Useful to Authenticate Its “Mono-Breed” Products: An Example of Sustainable Conservation of a Livestock Genetic Resource. Fraudsters beware.
- Estimating the genetic diversity of Pacific salmon and trout using multigene eDNA metabarcoding. DNA was recovered from the water, for pity’s sake.
Bean there, done that
Back in the day, together with co-authors Nigel Maxted and Edwin Chiwona, I used maps from the Atlas of Common Bean (Phaseolus vulgaris L.) Production in Africa 1 in a little thing called A Methodological Model for Ecogeographic Surveys of Crops. I don’t remember what software we used, and how difficult it was to do, as it was getting on for 25 years ago, but I suspect it was a bit of struggle mashing up the maps with genebank accession locality data.
Well, there’s a new edition of the atlas out, and, thanks to Genesys and Google Earth, it’s not quite so difficult (the colours represent ecologically distinct bean production areas).
Which is not to say it couldn’t be a bit easier. I mean, why not allow people to import their own data on the atlas’ nifty online interactive maps?
Oh, and BTW, only a tiny percentage of bean accessions from Kenya are geo-referenced, so that hasn’t changed much in 25 years.
Virtual veggie visit
Want to know what happens in a genebank? Do you have 8 minutes to spare?
More on the UK Vegetable Genebank for those who prefer to read.
No word on whether breeding vegetables is as tough as potatoes.