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

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



Matyukov V.S. Intrapopulation differentiation of cholmogoric purebred cattle for gene frequencies of kappa-caseine locus, Tsitol Genet., 2004, vol. 38, no. 2, pp. 46-50.




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