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Marbling characterized by the amount and distribution of intramuscular fat (IMF) in longissimus muscle (LM) and measured as beef marbling score (BMS), is an economically important trait of beef cattle in Japan. The myosin binding protein C, slow type (MYBPC1) gene, involved in efficient energy metabolism and homeostasis during muscle contraction in slow skeletal muscle, has been previously shown to be expressed at different levels in the LM between high-marbled and lowmarbled steer groups using differential-display PCR (ddPCR). In this study, we found that IMF area (%) in the sacrococcygeus muscle (SM) was positively correlated with BMS in the LM in Japanese Black steers (n=22, r=0.941, P |
