title: Study of the genetic structure of dairy cattle based on polymorphism within the aromatase gene.
abstract: The study included 1083 Polish Holstein-Friesian strain Black-and-White cows. The genetic structure of the herd was determined on the basis of polymorphism within the aromatase gene (CYP19/Cfr 13I and CYP19/PvuII). Genotypes were identified by the PCR-RFLP method. The CYP19/Cfr 13I allele frequencies were as follows: A -0.86 and B -0.14. The CYP19/PvuII allele frequencies were as follows: A -0.91 and B -0.09. The highest average heterozygosity rate was found in herd A (0.2108). The largest genetic distance was between cows kept in farms A and C (0.00103).
authors.affiliation: Department of Genetics and Animal Breeding, Westpomeranian University of Technology, Szczecin 71-466, Poland. inga.kowalewska-luczak@zut.edu.pl
authors.forename: I
authors.initials: I
authors.lastname: Kowalewska-Luczak
mesh_terms: D000818:Animals; D001141:Aromatase / Q000235:genetics*; D002417:Cattle; D005260:Female; D011110:Polymorphism, Genetic
chemical_list: D001141:Aromatase