생명과학회지 (Journal of Life Science)

  • 제22권1호
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  • Pages.31-35
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  • 2012
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
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한우 등심조직 내 succinate dehydrogenase 및 triosephosphate isomerase 발현이 근내 지방함량에 미치는 영향에 관한 연구

Association of Succinate Dehydrogenase and Triose Phosphate Isomerase Gene Expression with Intramuscular Fat Content in Loin Muscle of Korean (Hanwoo) Cattle

  • 투고 : 2011.08.12
  • 심사 : 2011.12.13
  • 발행 : 2012.01.30
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초록

비육 전(12개월령) 후(27개월령)기 한우 등심육을 대상으로 단백체 연구를 통하여 succinate dehydrogenase (SDH) 및 triosephosphate isomerase (TPI) 단백질의 발현 차이가 관찰되었다. 따라서 본 연구는 근내지방함량의 차이를 보이는 비육 전 후기 한우 등심육 내 차등발현을 보이는 SDH 및 TPI 유전자를 대상으로 근내지방함량과의 관련성 규명을 위하여, 비육 전 후기 및 한우 동기우 집단 50두를 대상으로 유전자 발현분석 및 통계분석을 수행하였다. 비육 전 후기 시료를 대상으로 유전자 발현분석을 수행한 결과 SDH 유전자는 12개월령에서 27개월령보다 4배 발현이 높은 것으로 확인되었으며, 한우 동기우 집단 50두 등심육을 대상으로 유전자 발현량과 근내지방함량과의 관련성을 분석한 결과에서도 근내지방함량과 고도의 통계적 유의성(p<0.001)이 있음을 확인하 다. 그러나 TPI의 경우 근내지방함량과의 관련성은 확인되지 않았다. 이러한 결과로 볼 때 SDH 유전자는 한우 등심육 내에서 근내지방함량과 관련된 유전자로 판단되며, 지속적으로 유전자구조 변이연구 등을 통한 유전자 마커로의 개발이 필요할 것으로 생각된다.

In a previous study, succinate dehydrogenase (SDH) and triose phosphate isomerase (TPI) were detected by 2D gel electrophoresis as differentially expressed proteins in the longissimus thoracis muscles of cattle aged between 12 and 27 months old. In the present study, we investigated the association of SDH and TPI gene expression with intramuscular fat content in 50 Hanwoo steers. The SDH gene was expressed at a 4 times higher level in the 12 month old group than in the 27 month old group (p<0.01). A regression analysis between gene expression value and intramuscular fat content showed a negative correlation between expression of the SDH gene and intramuscular fat content (p<0.001). In contrast, the expression of the TPI gene showed no significant association with intramuscular fat content. This result suggests that the SDH gene may be a candidate marker gene for intramuscular fat content in the longissimus thoracis of Korean cattle.

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피인용 문헌

  1. Association of Insulin-related Genes Expression with Carcass Weight in Loin Muscle of Korean Cattle (Hanwoo) vol.25, pp.1, 2015, https://doi.org/10.5352/JLS.2015.25.1.8