Two geographic subpopulations (Eastern and Western) of the Asturian Bermeya goat were analysed
using 27 microsatellites. A total of 122 individuals of Bermeya, Guadarrama, Alpine and Saanen goat
breeds were genotyped. The Eastern and Western Bermeya subpopulations had expected
heterozygosity values lower than 0.6 and within-subpopulations molecular coancestry values of 0.419,
thus illustrating a high between individuals genetic identity. The rarefacted average number of alleles
per locus found in both the Eastern and the Western Bermeya subpopulations were the lowest in the
dataset (3.8 and 3.9, respectively). The higher between-populations molecular coancestry values was
found for the pair Eastern Bermeya-Guadarrama (0.388 ± 0.006), thus reflecting the introgression of
the Pyrenean-type goat into Eastern Asturias. This parameter between the two Bermeya
subpopulations was of 0.371 ± 0.007. It could be recommended the implementation of different
conservation strategies for each of the geographic subpopulations of Bermeya goat.
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