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KMID : 1025520140560010027
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Journal of Animal Science and Technology
2014 Volume.56 No. 1 p.27 ~ p.27
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Novel SNP in the coding region of the FTO gene is associated with marbling score in Hanwoo (Korean cattle)
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Chung Eui-Ryong
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Abstract
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The fat mass and obesity associated (FTO) gene plays an important role in the regulation of energy homeostasis, fat deposition and obesity. For this reason, the FTO gene is a physiological and functional candidate gene for carcass and meat quality traits in beef cattle. The objectives of this study were to identify SNPs in the exonic regions of FTO gene and to evaluate the association of these SNPs with carcass traits in Hanwoo (Korean cattle). In this study, we newly identified two exonic SNPs in Hanwoo population. The g.125550A?>?T SNP was located in exon 3 and the g.175675C?>?T SNP was located in exon 6. Genotyping of the two SNP markers was carried out using PCR-RFLP analysis in Hanwoo steers to evaluate their association with carcass traits. As a result, g.125550A?>?T SNP genotype was significantly associated with effects on marbling score. Animals with the AA and TT homozygous genotypes had a significantly higher marbling score (p??T SNP. Our results suggest that the exonic SNP g.125550A?>?T in the FTO gene may be used as a DNA marker for the selection of Hanwoo with higher marbling.
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KEYWORD
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FTO, Marbling, SNP, Meat quality, Hanwoo
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