TSitologiya i Genetika 2004, vol. 38, no. 2, 46-50
Cytology and Genetics , vol. , no. , , doi: https://www.doi.org/

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

Matyukov V.S.

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-CnА and æ-CnВ. The average frequency of the æ-CnА was 0,689; of the æ-CnВ - 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-CnВ 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-CnВ 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.

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TSitologiya i Genetika
2004, vol. 38, no. 2, 46-50

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