[Polymorphisms of DGAT2 gene and its associations with several growth traits in Nanyang cattle].
The associations between SNPs in intron 6 and intron 7 of the bovine diacylglycerolacyltransferase (DGAT2) gene and growth traits in purebred Nanyang cattle (n=131) were reported in this study. Alleles detected in intron 6 were allele A and B with frequencies of 0.875 and 0.125, respectively; alleles detected in intron 7 were allele N and M with frequencies of 0.968 and 0.032, respectively. The animals with genotype AA in intron 6 showed 3.8% increases in body height (P < 0.01), 3.9% increases in body weight (P < 0.05), 3.8% (P < 0.05), 3.6% (P < 0.05), 3.8% (P < 0.01) and 3.1%( P < 0.01) increase in body length at age six-month to two-year compared with genotype AB, respectively. They also showed 3.8 % (P < 0.05), 3.4 % ( P < 0.01), 3.7% (P < 0.01) and 4.3% (P < 0.01) increases in heart girth at age six-month to two-year respectively. Animals with the NM genotype show significantly higher average heart girth at age two years (P < 0.05), and Hucklebone width (P < 0.01) at age eighteen-month (P < 0.01) and two-year (P < 0.01) compared with animals with the genotype NN, respectively.
Zhang
Zheng-Feng
ZF
College of Animal Science and Technolog, Shaanxi Key Laboratory of Molecular Biology for Agricultue, Northwest A&F University, Yangling 712100, China. zhzhfeng0891@126.com
Chen
Hong
H
Li
Qiu-Ling
QL
Lei
Chu-Zhao
CZ
Zhang
Chun-Lei
CL
Wang
Xin-Zhuang
XZ
Wang
Ju-Qiang
JQ
Wang
Yi-Min
YM
D000483:Alleles; D000818:Animals; D001835:Body Weight / Q000235:genetics; D002417:Cattle / Q000235:genetics*; D051048:Diacylglycerol O-Acyltransferase / Q000235:genetics*; D005838:Genotype; D007438:Introns / Q000235:genetics; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic / Q000235:genetics*; D012150:Polymorphism, Restriction Fragment Length
D051048:Diacylglycerol O-Acyltransferase