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Association analyses of polymorphisms in porcine MYF5 and MYOD1 genes with carcass traits
M.
Liu A,
J.
Peng A,
D. Q.
Xu A,
R.
Zheng A,
F. E.
Li A,
J. L.
Li A,
B.
Zuo A,
M. G.
Lei A,
Y. Z.
Xiong A,
C. Y.
Deng A,
S. W.
Jiang A B
A
Agriculture Ministry Key Laboratory of Swine Genetics and Breeding, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, P. R. China.
B
Corresponding author. Email: jiangsiwen@mail.hzau.edu.cn
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Australian Journal of Agricultural Research 58(11) 1040–1045 http://dx.doi.org/10.1071/AR06420
Submitted: 25 December 2006
Accepted: 28 June 2007
Published online: 26 November 2007
Abstract
The objective of this study was to assess the effect of polymorphisms of myogenic factor 5 (MYF5) and myogenic differentiation 1 (MYOD1) genes on carcass traits in pigs. PCR-RFLP was used to identify three and one SNP(s) from the MYF5 and the MYOD1 gene, respectively. Association analysis performed on the four polymorphisms in a series of three Large White × Meishan F2 populations totalling near 400 pigs showed: (1) an MYF5 exon 1 Hsp92II polymorphism causing a Met→Leu substitution was significantly associated with fat meat percentage, shoulder fat thickness, thorax-waist fat thickness, average backfat thickness and carcass length to 1st rib (P < 0.05); (2) an MYF5 exon 2 MspI polymorphism and an intron 1 HaeIII polymorphism, which were completely linked, were significantly associated with thorax-waist fat thickness, 6–7th rib fat thickness and carcass length to 1st rib (P < 0.05); (3) an MYOD1 intron 1 DdeI polymorphism was significantly associated with carcass length to 1st rib.
Keywords:
pigs.
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