Genetic variants affecting meat and milk production traits appear to have effects on reproduction traits in cattle

Title
Genetic variants affecting meat and milk production traits appear to have effects on reproduction traits in cattle
Publication Date
2012
Author(s)
Collis, E
Fortes, M R S
Zhang, Yuandan
( author )
OrcID: https://orcid.org/0000-0002-1998-3313
Email: yzhang4@une.edu.au
UNE Id une-id:yzhang4
Tier, Bruce
Schutt, K
Barendse, W
Hawken, R
Type of document
Journal Article
Language
en
Entity Type
Publication
Publisher
Wiley-Blackwell Publishing Ltd
Place of publication
United States of America
DOI
10.1111/j.1365-2052.2011.02272.x
UNE publication id
une:10855
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.
Link
Citation
Animal Genetics, 43(4), p. 442-446
ISSN
1365-2052
0268-9146
Start page
442
End page
446

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