Molecular characterization and differentiation of five horse breeds raised in Algeria using polymorphic microsatellite markers
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Citation
Nima Berber, Semir Bechir Suheil Gaouar, Samira Kdidi, N. Tabet Aouel, N. Saidi Mehtar. (16/2/2014). Molecular characterization and differentiation of five horse breeds raised in Algeria using polymorphic microsatellite markers. Journal of Animal Breeding and Genetics, 131 (5), pp. 387-394.
Abstract
In this study, genetic analyses of diversity and differentiation were performed
on five horse breeds raised in Algeria (Barb, Arab-Barb, Arabian,
Thoroughbred and French Trotter). All microsatellite markers were highly
polymorphic in all the breeds. A total of 123 alleles from 14 microsatellite
loci were detected in 201 horses. The average number of alleles per locus
was the highest in the Arab-Barb horses (7.86) and lowest in the thoroughbred
breed (5.71), whereas the observed and expected heterozygosities
per breed ranged from 0.71 (Thoroughbred) to 0.752 (Barb) and 0.71
(Thoroughbred) to 0.77 (Arab-Barb), respectively. The genetic differentiation
between the breeds was significant (p < 0.01) based on the infinitesimal
model (FST). Three different approaches for evaluating the genetic
relationships were applied. Genetic distances, the factorial correspondence
analysis and structure analysis showed that a significant amount of
genetic variation is maintained in the native horse populations and the
other breeds. The Barb and Arab-Barb breeds seem to be the most
genetically related and support the decision to consider the breeds as same
population.