Genetic diversity in five Czech native horse breeds assessed using microsatellite markers

Lubos Vostry, Hana Vydorvá-Vostrá, Barbora Hofmanová, Nina Moravčíková, Zdenka Veselá, Ivan Majzlík


Received: 2018-05-07 | Accepted: 2018-05-14 | Available online: 2018-11-26

The aim of the present study was to analyse the genetic diversity of the endangered horse breeds kept in the Czech Republic. A set of 13 microsatellites was used for genotyping 349 Silesian Norikers, 397 Norikers, 552 Czech-Moravian Belgian horses, 271 Old Kladrubers (175 greys, 95 blacks) and 241 Hucul horses. The proportion of obtained heterozygosity indicates no major loss of genetic diversity within analyzed breeds. The Wright’s FST and genetic distances indicated genetic segregation of both colour varieties of the Old Kladruber breed and small genetic distances between draft horse breeds. Moreover, the membership probability outputs showed that the frequencies of alleles varied across the three main regions. First region is represented by draft horse breeds, second region is represented by Old Kladruber horse and the last is represented by Hucul breed. The study provides data and information utilizable in the management of conservation programs in order to reduce inbreeding and to minimize loss of genetic variability.

Keywords: admixture, endangered breeds, horse, loss of genetic diversity


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