Journal
BMB REPORTS
Volume 41, Issue 12, Pages 846-851Publisher
KOREAN SOCIETY BIOCHEMISTRY & MOLECULAR BIOLOGY
DOI: 10.5483/BMBRep.2008.41.12.846
Keywords
Analysis of Variance (ANOVA); Hanwoo (Korean Native Cattle); Marbling (intramuscular fat)-related candidate gene
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This study was conducted to identify marbling-related candidate genes in M. longissimus dorsi of high- and low-marbled Hanwoo. The longissimus dorsi muscles were selected for gene expression from eight Hanwoo, steer carcasses based on crude fat content In the analysis of variance, gene expression of five candidate genes, FABP4, SCD, PPAR gamma, Titin and Nebulin was determined to be significantly different between high- and low-marbled Hanwoo steers (P < 0.0001). The Pik-4 and CaMK II genes were also shown to have a significant effect on crude fat content (P < 0.01). In the analysis of the differential expression between high- and low marbled groups, FABP4 gene expression was approximately 2 times higher in the high marbled group relative to the low marbled group. However, the PPAR gamma and SCD gene were highly expressed in the low marbled group. In addition, Titin and Nebulin were highly expressed in the low marbled group when placed under relatively high shear force. Finally, the Pik-4 and CaM K II gene also displayed a high expression pattern in the low marbled group. [BMB reports 2008; 41(12): 846-851]
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