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KMID : 0613820120220010031
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Journal of Life Science
2012 Volume.22 No. 1 p.31 ~ p.35
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Association of Succinate Dehydrogenase and Triose Phosphate Isomerase Gene Expression with Intramuscular Fat Content in Loin Muscle of Korean (Hanwoo) Cattle
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Kim Nam-Kuk
Lee Seung-Hwan
Lim Da-Jeong
Yoon Du-Hak
Lee Chang-Soo
Kim Oun-Hyun
Kim Hyeong-Cheol
Oh Sung-Jong
Hong Seong-Koo
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Abstract
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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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KEYWORD
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Succinate dehydrogenase, triosephosphate isomerase, gene expression, Korean cattle(Hanwoo)
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