Journal of Animal Science and Technology

  • 제56권8호
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  • Pages.27.1-27.6
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  • 2014
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  • 2672-0191(pISSN)
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  • 2055-0391(eISSN)
한국축산학회 (Korean Society of Animal Sciences and Technology)
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Novel SNP in the coding region of the FTO gene is associated with marbling score in Hanwoo (Korean cattle)

  • Chung, Eui-Ryong (Division of Animal Science and Resources, College of Life Science and Natural Resources, Sangji University)
  • 투고 : 2014.06.25
  • 심사 : 2014.10.27
  • 발행 : 2014.12.31
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초록

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 < 0.001) than those with AT heterozygous genotype, and this was significant after Bonferroni correction of the significance threshold (p = 0.003). Dominance effect was also observed for the marbling score (P < 0.05) with higher marbling score of homozygous animals. However, no significant associations with meat quality traits were observed for the g.175675C > 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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참고문헌

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피인용 문헌

  1. Deciphering signature of selection affecting beef quality traits in Angus cattle vol.40, pp.1, 2014, https://doi.org/10.1007/s13258-017-0610-z