- The risks of success in quality vegetable markets: Possible genetic erosion in Marmande tomatoes (Solanum lycopersicum L.) and consumer dissatisfaction. Market takes the fun out of landraces.
- Genetic variability of root peel thickness and its influence in extractable starch from cassava (Manihot esculenta Crantz) roots. Starch content depends on dry matter content and peel thickness. About 1500 accessions from CIAT evaluated for the latter, so lots to play around with.
- A meta-analysis of crop pest and natural enemy response to landscape complexity. More landscape complexity means more natural enemies. Still no cure for cancer.
- American Chestnut past and future: Implications of restoration for resource pulses and consumer populations of eastern U.S. forests. Reintroduction of blight-resistant chestnut may have some weird effects on other species.
- Keep collecting: accurate species distribution modelling requires more collections than previously thought. Oh damn.
- Variation in seed dormancy quantitative trait loci in Arabidopsis thaliana originating from one site. Is due to two QTLs. Also flowering time. But no, I don’t understand that “In contrast…” at the end of the abstract either.
- Tracking origins of invasive herbivores through herbaria and archival DNA: the case of the horse-chestnut leaf miner. Another use for old herbarium specimens: finding evidence of pests.
- Animal breeding in India – a time for reflection, and action. The reflection is that genetic improvement has stagnated, so the action needed includes better phenotypic record keeping, more attention to local diversity and community-breeding programmes.
- Performance of micropropagation-induced off-type of East African highland banana (Musa AAA – East Africa). A promising avenue for improvement, the off-types yield more better bananas, a month later.
- Pollination services in the UK: How important are honeybees? Not as important as you might think!
- The same regulatory point mutation changed seed-dispersal structures in evolution and domestication. Cabbage-family fruit development and rice shattering share the same single point mutation.
- Participatory research and on-farm management of agricultural biodiversity in Europe. By Michel “Pimpert”. That should be Pimbert. Old news, but worth mentioning.
Diverse seeds for disaster relief
SciDev.net reports on a new study reinforcing the view that after a disaster that wipes out seed stocks the local, informal seed system “in the form of loans or gifts of seed from friends and relatives” is more likely to restore agrobiodiversity to the farming systems than seed relief and markets. The study looked specifically at cowpea (Vigna unguiculata) after disastrous floods in Gaza Province, Mozambique, and strengthens the more general conclusion that seeds already in the local system offer the best chance of restoration.
I can’t help wondering, however, whether disasters of this kind might not also offer an opportunity to inject extra diversity into farming systems. Not just any old diversity, as might be provided by seed relief or generous private sector suppliers, but diversity selected to perform well under predicted climatic conditions in the disaster area. A savvy genebank system, working with relief agencies, might be able to supply small amounts of pre-selected diversity that farmers would be willing to try under the circumstances. And some of that diversity might even be better than what they had before the disaster.
Just a thought.
Amazonian ethnobotany from the beginning
The main rubber tree, which the British took to Malaysia, was the basis of all plantations. There are nine other plants in that same group from which the Indians once got rubber. But the plantations had started to supply the world with better and cheaper rubber than the Indians had been producing under terrible — almost slave — conditions. So the Indians had three or four generations when they hadn’t tapped wild rubber, and we were sent into the various countries to try to stimulate this for the war effort. I had been in the Amazon of Colombia, so I went right back among my Indians, and I worked on that during the war.
That’s the Father of Modern Ethnobotany, Richard Schultes, in part of a long interview he gave in 1990 for something called the Academy of Achievement. You can read it, listen to it, or watch videos of it. Fascinating.
Vavilov on the Beeb
If you were intrigued by news of a BBC series on the history of botany, but could not see it because you don’t live in the UK, fear not, Jeremy has snipped out the bit about Vavilov that appeared in the third programme, which was all about crop breeding.
A call for information on threatened Italian vineyards
I suppose there’s some poetic meaning to the coincidence that it is while I’m travelling in the oldest wine-producing region of the world that I notice on Facebook a call from Slow Food Italia for information on vineyards threatened with destruction. Be that as it may, it will be interesting to see what response Slow Food get, and what use they make of it. We have blogged here on various occasions about the desirability of an early warning system for genetic erosion, and how one might go about setting one up. This might have the makings of one, at least for grapevine in Italy.
