- The UK is fully on board for Rio+20 to “prioritize sustainable agriculture”.
- Maybe they saw ILRI’s number on mixed crops and livestock?
- The Japanese say that restoring the surrounding ecosystem is what restored rice production after last year’s tsunami. So they will support the UK?
- Amateur trials genebank’s asparagus varieties. I got a great bean that way.
- AoBblog catches up with the pigeonpea priority problem.
- “‘We now know exactly what we need to do to fix the broken tomato,’ said Harry Klee of the University of Florida.” You couldn’t make this science knows how stuff up.
- A new use for liquorice: treating type 2 diabetes.
- Something is eating the palms of Antigua, including the coconut palms. I’m no expert, but the symptoms look a lot like the work of the red palm weevil, our Roman palm disaster.
Brainfood: Spanish emmer, Lathyrus breeding, Vitis in N Africa, European tree niche models over time
- Remnant genetic diversity detected in an ancient crop: Triticum dicoccon Schrank landraces from Asturias, Spain. Strong geographic differentiation even at small scales.
- Grass pea (Lathyrus sativus): Is there a case for further crop improvement? Yes, but then they would say that, wouldn’t they.
- Highly polymorphic nSSR markers: A useful tool to assess origin of North African cultivars and to provide additional proofs of secondary grapevine domestication events. North African cultivars do not derive from North African wild strains. Did anyone really think they did? Well, I guess it’s good to have the data.
- Building the niche through time: using 13,000 years of data to predict the effects of climate change on three tree species in Europe. You have to take into account past distributions when predicting future ones.
Nibbles: Welsh sheep, Indian cows, International centres, NUS in Asia, Purdue workshop, Onions, New Alliance, Community seedbanks, Seed Savers Exchange, Restoration, Shakespeare
- “I think you’re going to need different sheep.” In Wales, that is. (And different grasslands?)
- And new cattle in India, apparently.
- Another bunch of international agricultural research centres get together. Yeah, because the other lot are doing so well.
- I wonder if any of either lot will be going to this FAO symposium on NUS in Asia in a couple of weeks’ time. And no, I don’t know why we didn’t know about this earlier.
- On the whole, though, I think I’d rather be at the Purdue llama workshop.
- Or, at a pinch, this thing on the edible Alliaceae.
- Wait, there’s also a New Alliance to Increase Food Security and Nutrition. Not sure who’s invited to this party, but the “Rome-based agencies” seem to be the ones throwing it. (I guess this comes on the heels of the Chicago Council on Global Affairs’ annual symposium? Where’s a good summary of what happened there? Anyone? Ah, yes, Ian Scoones explains all.)
- One of those agencies wants to hear from you if you have experience of community “gene/seed banks.”
- Unclear if Seed Savers Exchange would qualify, but they have a bunch of peas out for the “community” to have a look at.
- These Indian award-winners would definitely qualify. Which is just as well as it seems the national genebank is up for sale.
- Meanwhile, botanic gardens get together to restore degraded ecosystems.
- The Bard’s plants. Well, some of them.
Tracking down those sodium exclusion genes in wheat: Part 2
The story thus far: Our plucky heroes have traced Triticum monococcum C68-101, the wild parent of a tetraploid wheat (Line 149) with interesting salinity tolerance genes, to the University of Sydney. Maybe. Kinda. Sort of. But they keep digging, and their perseverance is not long in being rewarded. We hear again from Ray Hare.
You may remember that you asked me back in March to track down the source details of the T. monococcum used as the donor of the sodium exclusion genes Nax1 and 2. At last after some detective work I have a fairly good set of identifiers that match up.
The original seed, that was obtained by the University of Sydney, came as part of a collection of monococcums from Dr Ralph Riley of the Plant Breeding Institute, Cambridge. Prof. Eldrid Baker assembled this collection of Triticum species back in the 1960’s. C68-101 is an accession identifier in the University of Sydney Wheat register with the accession number NS 3637. It is also known as “Triticum aegilopoides – 3″. All of the entries in the University species collection have now been lodged with the Australian Winter Cereals Collection where this monococcum accession has the AUS number 98382.
I have not been able to trace the original collection location. It is likely to be Israel or a neighbouring country. PBI Cambridge had links with the Hebrew University. I have seen no shortage of all manner of Triticum species in Syria, Lebanon, Jordan and Israel.
I would be fairly confident that other monococcums have these Nax genes. We checked out two others from this set and each one showed Na exclusion activity. We simply had to select one accession to conduct our studies.
As I said before, the A genome diploids remain rather under researched. Who knows what may come from this ploidy level. It is quite possible that few diploids were involved in the original formation of the progenitor tetraploids and some of this A genome variation has been lost in the formation of the hexaploids. The total variation in the A genome in hexaploids is likely to be small when referenced back to that in the monococcums. I have seen good isozyme variation evidence that clearly supports this belief, in the order of a few orders of magnitude.
I am happy to be of additional assistance.
Kew doesn’t store seed only at the Millennium Seed Bank
The Livingstone Online website coming up pretty much out of the blue on my Facebook timeline a couple of days back reminded me that I had wanted to point to the online database of the Kew Economic Botany Collection, if for no other reason than that we haven’t done it before, and that the collection includes seed samples, not least a few collected on the good doctor’s expeditions. Then of course they went and posted something about the database on their blog yesterday. Anyway, we’ve talked about the potential value of museum seed specimens before. In particular, if you search for “sorghum seed” in this case you get (among other things) what is clearly a rather remarkable collection of material from Tanzania, sent to Kew in 1934 by the “Director of Agriculture.” Each seed sample is labelled with a local name. Wouldn’t it be great to go back and see if landraces with those names can still be found, and maybe even compare their DNA with anything that can be extracted from these old seeds?