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Basque thesis investigates wide diversity within certain ovine, bovine and equine breeds
Date:3/1/2011

rating homogeneous and isolated groups of others over very small geographical areas. Thus, numerous ecotypes, varieties and even breeds arise over a relatively small terrain.

The thesis concludes that this high variability is especially positive for conservation programmes for breeds in danger of extinction, such as Sasi Ardi, Betizu, Terrea, Monchina, Pottoka and Jaca Navarra. Amongst these, Mr Rendo highlights the diversity found in the semi-wild Sasi Ardi sheep breed, which is why he considers it an important animal genetic resource to be conserved. Concretely, he proposed making use of the non-standard Sasi Ardi population in future programmes of conservation, given that it provides considerable variability and is not genetically very different from the flocks classified as pure.

In the case of the Betizu breed of cattle, this explains why, in recent years, its genetic structure has suffered a reduction. In order to rectify this, a redistribution of the males amongst its flocks is proposed. Also put forward is the incorporation of non-standard populations (Betizu Mix) into the conservation programme, in the same way as the Sasi Ardi sheep.

Together with the Pottoka breed of horse, Mr Rendo highlights the conservation programme undertaken over the past 15 years. The thesis showed that, thanks to the correct handling and management of the animals, the breed maintained its high initial genetic variability.

Also for genetic-forensics

The biomarkers developed in this work were not only valid for genetic-populational analysis, but also for genetic-forensic analysis. The thesis also notably showed the effectiveness of the panel of sheep microsatellites. For example, it explains why, thanks to these biomarkers, a correct assignation of Sasi Ardi animals was able to be made, differentiating them from the surrounding Latxa Cara Rubia breed. Moreover, the correct assignation of a Latxa Cara Rubia sheep to its flock of ori
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Contact: Amaia Portugal
a.portugal@elhuyar.com
34-943-363-040
Elhuyar Fundazioa
Source:Eurekalert

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