Polimorphism of estrogen 1 receptor locus in populations of pigs of different genotypes and its association with reproductive charasteristics in large white sows

SUMMARY. Populations of Large White, Large Black, Poltava Meaty, Pietrain and Meishan pigs are characterized by intron PvuII-polymorphism in the estrogen 1 receptor gene (ESR1). The breeds differ in ESR1-allele frequencies and genotypes. In the populations there are deviations in genotype distribution from Hardy-Weinberg equilibrium. Established estrogen 1 receptor locus association with reproductive properties of Large White sows indicates possibility of using intron ESR1 PvuII-polymorphism as genetic multifoetus marker in pig selection.

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