- Evidence for recent evolution of cold tolerance in grasses suggests current distribution is not limited by (low) temperature. Geography a better predictor of cold tolerance than phylogeny.
- May we eat biodiversity? How to solve the impasse of conservation and exploitation of biodiversity and fishery resources. We may, if we all agree.
- Genetic diversity of cassava (Manihot esculenta Crantz) landraces and cultivars from southern, eastern and central Africa. There isn’t any.
- Evidence of sustainable intensification among British farms. Amazingly, there is some, and aiming to increase profitability can get you there.
- Key areas for conserving United States’ biodiversity likely threatened by future land use change. To the tune of 5-8% area loss, and not counting climate change. Would be interesting to know what that will do to crop wild relatives.
- Dilemma in participatory selection of varieties. If it’s a one-time deal, as it often is, it ain’t gonna work.
- Green Revolution research saved an estimated 18 to 27 million hectares from being brought into agricultural production. And saved 2 million ha of forest. But less than Borlaug thought. More on “Agricultural innovation to save the environment” from PNAS.
Nibbles: Germany edition
- Why blogging has been light this week. And also, which resulted in this. Thirsty work …
- Which is why I love our new hosts (see above).
- There’s gotta be some of these around here.
- I know there’s a lot of these. And I have to say I prefer the beer.
- And as for the sort of things this guy made…
- I wonder how many crop wild relatives there are around here though.
- Or salmon.
- Ok, that’s all from here for now, but see you again soon.
Brainfood: Wild yeast, Sorbus evolution, Taro leaf blight, Vegetable sesame, Phast phenotyping, US CWR, Risk, Citizen science, GMOs, European meadow diversity, Hedysarum diversity, Pineapple diversity
- Introducing a New Breed of Wine Yeast: Interspecific Hybridisation between a Commercial Saccharomyces cerevisiae Wine Yeast and Saccharomyces mikatae. The future of wine?
- Breeding systems, hybridization and continuing evolution in Avon Gorge Sorbus. You had me at “Avon Gorge, Bristol, UK, is a world ‘hotspot’ for Sorbus diversity.”
- Taro leaf blight — A threat to global food security. Yes, but we have the technology…
- Agromorphological characterization of Sesamum radiatum (Schum. and Thonn.), a neglected and underutilized species of traditional leafy vegetable of great importance in Benin. Yes, but we need the technology…
- Phenoscope: an automated large-scale phenotyping platform offering high spatial homogeneity. Somebody mention technology?
- An Inventory of Crop Wild Relatives of the United States. More than you’d think.
- Empirical Test of an Agricultural Landscape Model. The Importance of Farmer Preference for Risk Aversion and Crop Complexity. It’s not just about profit. At least in the UK.
- Using citizen scientists to measure an ecosystem service nationwide. Bullshit. No, really, it’s about the decomposition of cow pats.
- Intragenesis and cisgenesis as alternatives to transgenic crop development. Spingenesis.
- Managing biodiversity rich hay meadows in the EU: a comparison of Swedish and Romanian grasslands. Both need more input from local knowledge.
- Mediterranean Hedysarum phylogeny by transferable microsatellites from Medicago. Wait, Sulla? What happened to Hedysarum?
- Polymorphic microsatellite markers in pineapple (Ananas comosus (L.) Merrill). And?
Nibbles: Historical coffee, Conservation agriculture, Ecosystem services, Good weeds
- Kew’s data manglers are breathing life into the archives, but I need more narrative on coffee rust.
- Singing the praises of conservation agriculture in Tanzania.
- IFPRI discovers ecology, and it’s complicated.
- Not to be outdone, CIAT discovers weeds are important food.
Conserving Prunus africana?
I’ve been sitting on it for a while, but a paper which AoB Blog discussed back in January led me to uncover a whole load of stuff on Prunus africana. The African Cherry Tree does not rate a leaflet in the African Food Tree Species series, perhaps because it’s not a, well, food tree, but that doesn’t mean it’s not important.
Chemicals extracted from the tree’s bark are used in a range of pharmaceutical products to treat enlarged prostate (benign prostatic hyperplasia), an extremely common condition that affects up to half of men aged over 50.
Hence various efforts to develop sustainable harvesting methods. And also an interesting series of diversity and demographic studies:
- Phylogeography of the Afromontane Prunus africana reveals a former migration corridor between East and West African highlands: “The high genetic similarity found between western Uganda and west African populations indicates that a former Afromontane migration corridor may have existed through Equatorial Africa.”
- Structural diversity and regeneration of the endangered Prunus africana (Rosaceae) in Zimbabwe: “…poor regeneration, fewer P. africana trees in small and large size classes, dominance of positive height and diameter differentiation and high mingling.”
- Divergent pattern of nuclear genetic diversity across the range of the Afromontane Prunus africana mirrors variable climate of African highlands: “The observed patterns indicate divergent population history across the continent most likely associated to Pleistocene changes in climatic conditions. The high genetic similarity between populations of West Africa with population of East Africa west of the Eastern Rift Valley … provides further evidence for a historical migration route. Contrasting estimates of recent and historical gene flow indicate a shift of the main barrier to gene flow from the Lake Victoria basin to the Eastern Rift Valley…”
- Modelling the potential distribution of endangered Prunus africana (Hook.f.) Kalkm. in East Africa: “Prunus africana distribution is thus highly vulnerable to a warming climate and highlights the fact that both in-situ and ex-situ conservation will be a solution to global warming.”
Maybe we could do with some more seed behaviour data. But it would seem there is now plenty of diversity, demographic and sustainable harvesting information on which to base a comprehensive conservation strategy. Is someone coming up with one?