Genetic Differentiation and Population Structure of Two Bulgarian Local Goat Breeds Using Microsatellite Markers
2024
Georgi Yordanov | Georgi Kalaydzhiev | Nadezhda Palova | Delka Salkova | Lyudmila Lozanova | Heliana Dundarova | Tsonka Odjakova | Pavel Todorov | Georgi Radoslavov | Peter Hristov
Establishing genetic diversity in the population is an essential first step for the sustainable conservation of valuable genetic resources under threat of extinction. Two local goat breeds, Kalofer long-haired (KLH) and Bulgarian screw-horned long-haired (BSHL), were genotyped using a panel of 14 microsatellite markers to determine their population structure and differentiation. The overall mean number of alleles was 8.82, higher in BSHL (9.71) as compared with KLH (7.92). The Ho and He values were almost equal for BSHL (0.75: 0.76, respectively) and KLH goats (0.74: 0.76, respectively). The value of the coefficient of population differentiation (FST) was very low (0.024), indicating only 2% genetic differentiation between the two goat breeds. The structure and PCoA analyses revealed considerable overlap between the two breeds, although some flocks of each breed differentiated from the common genetic pool. The results obtained in the present study can serve to differentiate purebred animals that are the basis of a selection process and a breeding strategy with a view to the conservation of these two local goat breeds.
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