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OJVRTM

Online Journal of Veterinary Research©

(Including Medical and Laboratory Research)

Established 1994

ISSN 1328-925X

 

 Volume 30 (6): 380-385, 2026.  

 Single nucleotide variations in CYP1A1 gene in cattle

 

Thanislass J PhD, Lydia Dhanammal PhD.

 

1Department (s) Veterinary Biochemistry,  Animal Genetics and Breeding, Rajiv Gandhi College of Veterinary and Animal Sciences, Pondicherry, India

 

ABSTRACT

 

Thanislass J, Dhanammal L., Single nucleotide variations in CYP1A1 gene in cattle, Onl J Vet Res, 30 (6): 380-385, 2026. CYP1A1 gene induces hydroxylation of estrogen and  breeding in cattle. Ten normal and 20 repeat breeder Bos indicus were used to determine nucleotide transitions from T à C and from Aà G in Exon 7 of the CYP1A1 gene. Transitions found were non-synonymous single nucleotide polymorphisms resulting in amino acid change from Tyrosine to Histidine and Isoleucine to Valine, respectively. This transition in cattle may affect estrogen and thus, the repeat breeding syndrome.

 

Key Words: CYP1A1, SNP, Repeat Breeding, ASPCR, Estrogen.

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