Study of the genetic structure of dairy cattle based on polymorphism within the aromatase gene.
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).
Kowalewska-Luczak
I
I
Department of Genetics and Animal Breeding, Westpomeranian University of Technology, Szczecin 71-466, Poland. inga.kowalewska-luczak@zut.edu.pl
D000818:Animals; D001141:Aromatase / Q000235:genetics*; D002417:Cattle; D005260:Female; D011110:Polymorphism, Genetic
D001141:Aromatase