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Title: Genetic variants affecting meat and milk production traits appear to have effects on reproduction traits in cattle
Contributor(s): Collis, E (author); Fortes, M R S (author); Zhang, Yuandan (author); Tier, Bruce (author); Schutt, K (author); Barendse, W (author); Hawken, R (author)
Publication Date: 2012
DOI: 10.1111/j.1365-2052.2011.02272.x
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Abstract: Polymorphisms located in the genes ABCG2, DGAT1, LEP, PRLR, RORC, CAPN1 and CAST previously have been associated with milk or meat production traits. In this study, these polymorphisms were examined for significant effects on reproductive traits [age at puberty (AGECL), post-partum anoestrus interval (PPAI) and the ability ovulate prior to weaning (PW)] and on a panel of correlated traits such as weight, growth and serum concentration of insulin-like growth factor I. The effects of the polymorphisms were examined in two samples of tropically adapted beef cattle: Brahman (N = 932) and Tropical Composites (N = 1097). A polymorphism in the gene DGAT1 was associated with age at puberty in the combined sample (P = 0.042), and two polymorphisms in CAPN1 were associated with PPAI (P = 0.033) and with the ability ovulate PW (P = 0.017). The favourable allele for reproductive traits was not always the favourable allele associated with production traits. The effects of these polymorphisms on reproductive traits were small compared to their effects on the traits for which they were originally discovered.
Publication Type: Journal Article
Source of Publication: Animal Genetics, 43(4), p. 442-446
Publisher: Wiley-Blackwell Publishing Ltd
Place of Publication: United States of America
ISSN: 1365-2052
Field of Research (FOR): 070201 Animal Breeding
060412 Quantitative Genetics (incl Disease and Trait Mapping Genetics)
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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