Table 4

Genes belonging to the energy and fat metabolism family whose expression levels were the most correlated with initial or overall tenderness scores in the reference group (young bulls slaughtered year 1)
Correlation with initial tenderness Correlation with overall tenderness
Animal type Year Number of animals Person coefficient Spearman coefficient Person coefficient Spearman coefficient
FABP4 young bulls year 1 25 0.42 0.31 0.41 0.39
PPARG young bulls year 1 25 0.59 0.48 0.52 0.46
DGAT2 young bulls year 1 25 0.61 0.51 0.57 0.56
FASN young bulls year 1 25 0.61 0.56 0.59 0.52
HADHB young bulls year 1 25 0.44 0.49 0.47 0.46

Among the 150 genes belonging to the energy and fat metabolism family with probes on the GENOTEND chip, five genes were identified with the highest correlation coefficients with tenderness scores (they were the most associated with tenderness through the principal component analysis). Individual correlation coefficients (Pearson coefficient and Spearman coefficient) are indicated for each gene. Standard errors on the estimates of Pearson coefficients are between 0.17 and 0.19. Multiple regression analyses were performed with the combination of these 5 genes for young bulls slaughtered year 1. All together, these 5 genes explained up to 66-71% of the total variability in tenderness in the reference group.

Hocquette et al.

Hocquette et al. BMC Veterinary Research 2012 8:135   doi:10.1186/1746-6148-8-135

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