Science & Equine

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Written by Anouk van Breukelen
Posted in Breeding

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Genetic diversity in American horse populations

Domestic horses were first brought to America from the Iberian Peninsula during the second voyage of Columbus in 1493 from which the Criollo horse populations descend. During the years genetic hybridization with other breeds has taken place.

The results identify five genetic clusters: Celtic, Iberian, North American with Thoroughbred influence, Colombian breeds, other Criollo breeds. Where the other Criollo breeds had the closest genetic relationship with breeds originating from the Iberian Peninsula. The results indicate that Criollo breeds share a common ancestry, but each breed has its own identity.

> From: Cortés et al., Journal of Animal Breeding and Genetics 134 (2012) 340-350. All rights reserved to Blackwell Verlag GmbH. Click here for the online summary.

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