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Association of genetic variants of the prolactin gene with milk production traits in Russian Red Pied cattle

Published online by Cambridge University Press:  23 November 2017

Masoud Alipanah ,
Lobov Kalashnikova  and
Genadi Rodionov
Masoud Alipanah*
Affiliation:
Zabol University, Zabol, Iran
Lobov Kalashnikova
Affiliation:
All-Russian Research Institute of Animal Breeding, Moscow, Russia
Genadi Rodionov
Affiliation:
Timiriazev Agricultureal Academy, Moscow, Russia
*
Email:alipanahus@yahoo.com
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Extract

Prolactin plays an important regulatory function in mammary gland development, milk secretion, and expression of milk protein genes. Hence the PRL gene is a potential genetic marker of production traits in dairy cattle. The gene was mapped on chromosome 23 by Hallerman et al. (1988). It consists of 5 exons and four introns (Camper et al. 1984) encoding the 199-amino-acid mature protein (Wallis 1974). On the basis of sequence analysis of four different cDNA clones, seven possible nucleotide substitutions were described by Sasavage et al. (1982). One of them, recognized by RsaI endonuclease, has become a popular genetic marker used for genetic characterization of cattle populations by means of PCR-RFLP (Mitra et al., 1995). Two allelic variants (B and b) have been distinguished at the DNA level, based on RsaI polymorphism in the third exon of the coding region. It has been suggested that prolactin alleles correlate with milk yield (Lewin et al., 1992).

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2007 , April 2007 , pp. 156
Copyright
Copyright © The British Society of Animal Science 2007

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References

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