Nibbles: Gene smuggling, teaching, UG99, fungi, fermentation, horse, livestock

Nibbles: Meeting, UG99, carnival, autocthonous cattle, nutrition, blackberry, garlic

Tibet’s seeds must be stored as climate changes

At the risk of offending the nabobs at Macmillan Publishing, I am going to post this letter to Nature in its entirety, because Nature requires one to pay to read it online, and the subject is too important for that. ((And thanks to Hannes Dempewolf for the tip.))

Sir
The Tibet–Qinghai plateau is an area where climate change may have huge effects as glaciers retreat, leading to large decreases in water supply in the mega-rivers of India, southeast Asia and China by the middle of the century. For the 6,000 or more species of higher plants, including the widely admired Himalayan alpines, the effects will be even more severe as vegetation zones move upwards by several hundred metres. The movement of regions suitable for growth will be followed, not accompanied, by the vegetation suited to them, increasing the risk of extinctions.

In Tibet, few of the practices adopted in many other countries are in place. Although there are 38 nature reserves, covering a third of the country, there are no botanical gardens. The preservation of seeds of Tibetan plants is virtually non-existent. The Millennium Seed Bank at Kew in the United Kingdom stores seed from only three Tibetan species, and China’s largest seed bank, the Southwest China Germplasm Bank of Wild Species in the Kunming Institute of Botany, has none.

We and researchers at other institutions are addressing this gap. We hope we’ll be in time.

W. John Cram, China–UK HUST–RRes Genetic Engineering and Genomics Joint Laboratory, Huazhong University of Science and Technology, Wuhan, Hubei 430074
Yang Zhong, School of Life Sciences and Center for Evolutionary Biology, Fudan University, Shanghai 200433, China
Tashi Tersing, Institute of Biodiversity Science and Geobiology, Tibet University, Lhasa 850000, China
Jie Cai, Millennium Seed Bank Project, Royal Botanic Gardens, Kew, Wakehurst Place, Ardingly, West Sussex RH17 6TN, UK

Association Kokopelli fined (again?)

Over a year ago we reported that a French court had fined the Kokopelli Association €17,130 for putting unregistered seeds on the market. Today we learn that a fine of €35,000 has been levied, after Baumaux, a seed company, took the association to court. It isn’t clear whether these represent one case, with an increased fine, or two separate cases. What is clear is the lunacy of the argument:

Association Kokopelli were found guilty of selling traditional and rare seed varieties, which were not on the official EU-approved list. Such seeds are deemed illegal to sell on the grounds that it gives the seller an “unfair trading advantage”.

Right. Selling people what they want, rather than (or in addition to) what you want, is unfair. ((There’s a petition you can sign up for, to save Kokopelli; not sure how useful that is now.))

In related news, the same article says that the European Commission either has met or will meet to consider the new seed marketing directives or regulations, which we have also discussed here before. Very hard to penetrate those mysteries, so nothing to report, but we’ll keep our ears open. And if any readers can shed any further light on the subject, share it with us, please.

Threatened livestock species?

Many thanks to Michael Kubisch for this contribution.

An interesting recent article in Molecular Ecology asks the provocative question of whether cattle, sheep and goats are endangered species. ((Taberlet P, Valentini A, Rezaei HR, Naderi S, Pompanon F, Negrini R, Ajmone-Marsan P. (2008) Mol. Ecol. 17(1):275-84. Are cattle, sheep, and goats endangered species?)) Yes, that is species, not breeds. While nobody will question the fact that many livestock breeds all over the world are at risk of disappearing, the suggestion that whole species may be at risk would seem far-fetched.

Well, not if you’re a geneticist. The article nicely summarizes what’s been lost in terms of genetic variation and the overwhelming impression one gets is that it’s quite a bit. Even in breeds such as Holstein cattle where animals number in the millions, the effective population size, which is an indicator of the degree of genetic variation, would suggest that such populations tend to be relatively homogeneous. The primary reason for this is, as one might expect, mostly economic necessity. The selection pressure for increasing production of desired commodities has inevitably led to the loss of genetic diversity. What seems to have accelerated this loss is the use of modern technologies such as artificial insemination, which allows for rapid and widespread dispersal of the genetic attributes of relatively few males. And this may just be the beginning. The fact that advances in cloning technology now make it feasible to generate transgenic animals with added, deleted or altered genes means that such changes would by necessity depend on their dispersal on very few founder animals. So it is likely that this trend is not only continuing but may, in fact, be accelerating.