Herdwick sheep pass viability test

Embryos and sperm collected almost 10 years ago at the height of the Foot and Mouth epidemic in the UK have proved viable, according to a report from the UK’s Channel 4 News. Five ewes are carrying lambs fathered by rams lost to foot and mouth disease, and another three are surrogate mothers to embryos taken from sheep culled during the epidemic.

The threat to Herdwicks, one of several hardy heritage sheep breeds particularly valued for crossbred animals, prompted a rescue mission and resulted in the formation of The Sheep Trust. The report points out that in the end the precautions weren’t necessary — only about a third of the Herdwick flock was culled — but that it was impossible to know that in advance.

The Sheep Trust has taken on 12 heritage breeds, and calculates that 10 of those are geographically very concentrated, with 95% of the animals within 65 km of the centre of the breed’s distribution. This, the Trust warns, makes them vulnerable to future outbreaks of disease.

Latest on the Egyptian Deserts Gene Bank

We’ve heard more from El-Sayed Mohamed El-Azazi, who’s doing a PhD at the Desert Research Centre on seed conservation of Acacia spp. (“Ecophysiological studies for some Acacia species grown in Egyptian Deserts and its conservation in gene bank” is the title). You’ll remember that the place was looted a few days ago, and people are justifiably worried about the Egyptian Deserts Gene Bank housed by the institute.

El-Sayed is adamant that the seeds and field genebank are safe. However, it is clear that the laboratories have been thoroughly trashed, and a lot of equipment broken or taken.


Along with the computers went a lot of data. El-Sayed says he has lost some of his PhD data. And the genebank’s database seems to be gone, although the passport data is still around in hardcopy. There are about 1100 accessions in the genebank, of about 750 wild plant species.


Which brings up a point that’s maybe not often addressed. And that is that the desirability of safety duplication goes as much for the data about germplasm accessions as for the seeds themselves.


A Svalbard for data, anyone?

Nibbles: Apples, Agave, Argentina, Araucanas, Egypt, Agro Pastorale, Add-on benefits, Oil Palm

Gaps in cassava collection in Africa highlighted

A request from MapSpaM for people to help them in mapping the distribution of cassava cultivation in Africa ((You may remember us mentioning MapSpaM before as part of an ongoing discussion of crop distribution data.)) forced me into some more playing with Google Earth. I just took MapSpaM’s draft cassava map…

…and plonked on top of it the germplasm provenance data from Genesys. Here’s the result (right click to save the kmz file):

Which highlights — not for the first time, but very powerfully — the lack of material from eastern and southern Africa in the international genebanks. It is definitely important to think about safety duplicating national collections from those countries.

Here’s a close-up for West Africa:

Pretty good representation overall, but even here there are some definite gaps. Time to get collecting again in Africa too. Though of course a geographic gap is not necessarily a genetic gap…