title: Novel SNPs in the bovine ADIPOQ and PPARGC1A genes are associated with carcass traits in Hanwoo (Korean cattle).
abstract: Adiponectin (ADIPOQ) modulates several biological processes including energy homeostasis, glucose and lipid metabolism. The bovine ADIPOQ gene was located near the QTL affecting marbling, ribeye muscle area and fat thickness on BTA1. The gene encoding peroxisome proliferator-activated receptor-γ coactivator-1α (PPARGC1A) was located within the QTL region of the traits on BTA6. Moreover, its protein product has various biological functions such as cellular energy homeostasis, including adaptive thermogenesis, adipogenesis and gluconeogenesis. Therefore, the ADIPOQ and PPARGC1A genes are a positional and functional candidate gene for carcass traits in beef cattle. The objectives of this study were to identify polymorphisms in the bovine ADIPOQ and PPARGC1A genes, to evaluate their associations with carcass traits in Hanwoo (Korean cattle) population. We identified nine SNPs in the ADIPOQ gene. Two SNPs (DQ156119: g.1436T > C and DQ156119: g.1454A > G) in the promoter region were recognized as new SNPs identified in Hanwoo. Association analysis indicated that the g.1454A > G SNP genotype was significantly associated with effects on LMA (P = 0.004) and BF (P = 0.021). The ADIPOQ haplotype was also found to have significant effect on the LMA. In the PPARGC1A gene, we identified 11 SNPs in the two unexplored regions (intron 3 and 5). Among them, seven SNPs were located in intron 3 and four SNPs were located in intron 5. Of these 11 putative novel SNPs, two SNPs (AY839822: g.292C > T and AY839823: g.1064C > T) with minor allele frequency (MAF) > 0.20 were examined for associations with carcass traits. The association analysis revealed that both SNPs in PPARGC1A gene were significantly associated with LMA (P < 0.05). These findings suggest that the SNPs of bovine ADIPOQ and PPARGC1A genes may be a useful molecular marker for selection of carcass traits in Hanwoo.
authors: Division of Animal Science and Resources, College of Life Science and Natural Resources, Sangji University, 660 Usnadong, Wonju, Gangwondo, 220-702, South Korea.
authors: Sungchul
authors: S
authors: Shin
authors: Euiryong
authors: E
authors: Chung
mesh_terms: D052242:Adiponectin / Q000235:genetics*; D000483:Alleles; D000818:Animals; D002417:Cattle; D002874:Chromosome Mapping; D005787:Gene Frequency; D023061:Gene Order; D056726:Genetic Association Studies; D005838:Genotype; D006239:Haplotypes; D008460:Meat / Q000592:standards*; D020641:Polymorphism, Single Nucleotide; D019655:Quantitative Trait, Heritable; D017422:Sequence Analysis, DNA; D014157:Transcription Factors / Q000235:genetics*
chemical_list: D052242:Adiponectin; D014157:Transcription Factors
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