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한우 GPD1 유전자의 SNP와 육량 및 육질형질과의 연관성 분석 KCI 등재

Association Between the Single Nucleotide Polymorphism of Glycerol-3-phosphate Dehydrogenase 1 Gene and Meat Yield and Quality Traits in Hanwoo (Korean Cattle)

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동물자원연구 (Annals of Animal Resources Sciences)
강원대학교 동물자원공동연구소 (Institute of Animal Resources Kangwon National University)
초록

This study aimed to indentify single nucleotide polymorphisms (SNPs) in exon region of the glycerol-3-phosphate dehydrogenase 1 (GPD1) gene and to evaluate their associations with meat yield and quality traits in Hanwoo (Korean cattle). Two SNP markers, g.2766C>T and g.5105A>G were identified in the exons 5 and 8, respectively. Genotyping of the two SNPs was carried out using PCR-RFLP analysis in 309 Hanwoo steers to evaluate their associations with meat yield and quality traits. As a result, g.2766C>T in exon 5 was significantly associated with carcass weight (CW) and marbling score (MS). Animals with the CC genotype of g.2766C>T had heavier CW than those with the CA or AA genotype. Animals with the CC genotype of g.2766C>T also had higher MS than those with the CA or AA genotype. Additive effect was also observed with CW and MS traits. We constructed haplotypes by linkage disequilibrium analysis and analyzed association between haplotypes and meat yield and quality traits. Haplotype of GPD1 gene was associated with CW. As a result, animals with CA haplotype had heavier CW than TG haplotype. These findings suggest that the SNPs of bovine GPD1 gene may be a useful molecular marker for selection of meat yield and quality traits in Hanwoo.

저자
  • 김준성(상지대학교 동물생명자원학부) | Jun Sung Kim
  • 방주희(서울대학교 의과대학 암연구소) | Ju Hee Bang
  • 신성철(상지대학교 동물생명자원학부) | Sung Chul Shin
  • 정의룡(상지대학교 동물생명자원학부) | Eui Ryong Chung CorrespondingAuthor