Matyukov V.S.

Intrapopulation differentiation of cholmogoric purebred cattle for gene frequencies of kappa-caseine locus

TSitologiia i genetika 2004, v 38, Issue 2, 46-50

Investigation of the sampling of 2907 cows from 17 farms of three regions of the Non-chernozem zone of the European part of Russia showed that kappa-caseine synthesis is controlled by two allelic genes - æ-Cn^А and æ-Cn^В. The average frequency of the æ-Cn^А was 0,689; of the æ-Cn^В - 0,311; in factory herds - 0,718 and 0,282, respectively; in reproductive herds - 0,714 and 0,286, respectively; in market herds - 0,629 and 0,371, respectively. The high frequency of æ-Cn^В allele (0,331) has been revealed in subpopulation of cholmogoric cattle of the Komi Republic. In the herds of cholmogoric cattle of the flood-plains of Pechora river æ-Cn^В frequency reached 0,520 and 0,575. The assumption is made about selective role of polymorphism and necessity of rational use of gene pool of domestic cattle.

Matyukov V.S. Intrapopulation differentiation of cholmogoric purebred cattle for gene frequencies of kappa-caseine locus // Tsitol Genet. – 2004. – 38(2). – P. 46-50.