Association between polymorphisms of CYP19, CYP21, and ER1 genes and milk production traits in Black-and-White cattle

Authors : Magdalena J, Wilhelm GRZESIAK, Iwona SZATKOWSKA

Pages : 41-49

View : 12 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The relationships between the SNPs of the cytochrome P450 gene insert ignore into journalissuearticles values(CYP19/PvuII);, steroid 21-hydroxylase insert ignore into journalissuearticles values(P450c21); gene insert ignore into journalissuearticles values(CYP21/HpaII);, 2 polymorphic sites of estrogen receptor alpha gene insert ignore into journalissuearticles values(ER1/BglI and ER1/SnaBI);, and milk production traits of Black-and-White cattle were analyzed. A total of 472 cows were included in the study and genotyped using PCR-RFLP. The frequencies of alleles for the Black-and-White cows were as follows: 0.923 - CYP19A, 0.077 - CYP19B, 0.042 - ER1/BglIA, and 0.958 for ER1/BglIG. For ER1/SnaBI, the frequency of allele A was 0.960 and that of allele G was 0.040. In the CYP21, all cows were genotyped as AA insert ignore into journalissuearticles values(no polymorphism);. There were no associations between CYP19/PvuII, CYP21/HpaII, ER1/BglI, ER1/SnaBI polymorphisms, and milk production traits of the investigated cows.
Keywords : CYP19 gene, CYP21 gene, milk production traits, dairy cattle, ER1 gene