Very diverse barley discovered … and already under threat?

SciDev.net reports on a paper in Theoretical and Applied Genetics that identifies the world’s most genetically diverse barley varieties. SciDev.net and other press reports focus on the high diversity of the barleys, found growing in farmers’ fields around the captial city of Asmara in Eritrea, as a source of potentially valuable material for improving tropical varieties worldwide. They point out, too, that the populations are threatened by urban development and that Eritrea has no genebank in which to protect them. But does Eritrea really need its own genebank, or have they more pressing priorities? A researcher from ICARDA, which has a perfectly serviceable genebank, was on the team. The International Treaty on Plant Genetic Resources for Food and Agriculture guarantees free access to the material if stored there. Eritrea was one of the first signatories of the Treaty. What’s the problem?

More interesting, perhaps, is a part of the paper that the reports I read neglected to mention. The molecular analysis indicates that the Horn of Africa may be where barley was first domesticated. That honour usually goes to the Fertile Crescent, with the Horn a “secondary centre of diversity”. But Eritrean and Ethiopian barley may actually have been domesticated independently.

Thai rice on the genebank menu

158826661 3Cb29Defdd M There was a slightly odd article at Seed Magazine a little while back on Thailand’s efforts to conserve almost extinct varieties of rice in its genebank. Odd because while the story is familiar enough in this kind of piece, the details are slightly confused (or confusing). But no matter, that’s probably only of concern to a pedant like me. The rest of you won’t worry about statements like “farmers across Asia once grew more than 100 varieties of rice, but now that number is down to only 20 or 30 of the most productive types”. Instead, you’ll be thrilled to know that the Thai national collection houses nearly 24,000 varieties, 17,000 of which “are in danger of dying out because they are no longer grown by Thai farmers”. That’s great because SINGER, a window on the world of genebank accessions, lists only 5982 samples from Thailand. Maybe one of those is “the fragrant Pin Kaew variety that was named the best rice in the world at a competition in 1966 but which has since disappeared, having lost out to more productive varieties”.

flickr photo by Stef Noble used under a Creative Commons license. Purple Sticky Rice is rare, but not that rare.

Future prospects for European crop varieties

Last time I looked at the state of seed availability in Europe and how it got that way: a one-size-fits-all approach that suits industrial growers and their breeders well enough but that leaves gardeners and specialist growers out in the cold. This time, what are they doing about it.

This whole discussion began with the prosecution of the Kokopelli Association in France for selling seeds of unregistered varieties. That provoked disbelief and a note that change was being discussed. So it is. The version I saw of the “Draft Commission Directive establishing the specific conditions under which seed and propagating material of agricultural and vegetable species may be marketed in relation to the conservation in situ and the sustainable use of plant genetic resources through growing and marketing” is due to come into force on 1 April 2007

I shall refrain from the obvious joke.

The provisions of the draft are somewhat complex, and in boiling them down I will almost certainly get something wrong. But in essence, a “conservation variety” or “amateur variety … with no intrinsic value for commercial production” can be sold within a “bio-geographic region” without having to be registered under the previous seed marketing directives. There are many other conditions hedged about, like the colour of the labels and the minimum size of the packages. Two stick out. The total seed sold for each conservation variety shall not exceed 0.1% of the seed of that species used each year in the country concerned. And marketing is limited to the bio-geographic region of origin or adaptation of the variety.
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