Table 5

Estimated least squares means for meat quality traits in relation to g.-995A>G and g.-311A>G SNP genotypes in purebred Large White and Duroc animals
Trait Large white Duroc
g.-995A>G Promoter region g.-311A>G Promoter region g.-995A>G Promoter region g.-311A > G Promoter region
p-value AA AG GG p-value AA AG GG p-value AA AG GG p-value AA AG GG
Glycolytic Traits n = 55 n = 37 n = 6 n = 56 n = 37 n = 5 n = 20 n = 54 n = 22 n = 45 n = 47 n = 5
Driploss%
    0.002
2.41 (0.19) 3.22 (0.18) 3.68 (0.44) 0.009 2.46 (0.16) 3.22 (0.18) 3.46 (0.51) 0.204 2.08 (0.27) 2.46 (0.15) 2.77 (0.23) 0.181 2.38 (0.16) 2.37 (0.15) 3.29 (0.47)
pHULT
    0.0003
5.67 (0.01) 5.59 (0.02) 5.52 (0.04)
    0.0002
5.67 (0.01) 5.60 (0.02) 5.43 (0.05) 0.345 5.67 (0.02) 5.63 (0.01) 5.63 (0.02) 0.172 5.65 (0.01) 5.64 (0.01) 5.56 (0.04)
pHUSM 0.637 5.55 (0.01) 5.55 (0.02) 5.51 (0.04) 0.639 5.55 (0.01) 5.54 (0.02) 5.50 (0.05) 0.684 5.55 (0.02) 5.53 (0.01) 5.54 (0.02) 0.710 5.53 (0.04) 5.53 (0.01) 5.51 (0.04)
pH45LT 0.038 6.60 (0.03) 6.51 (0.03) 6.51 (0.08) 0.056 6.67 (0.03) 6.56 (0.03) 6.60 (0.10) 0.767 6.58 (0.05) 6.55 (0.03) 6.59 (0.05) 0.827 6.55 (0.03) 6.57 (0.03) 6.51 (0.09)
pH45SM 0.139 6.6 (0.03) 6.62 (0.03) 6.51 (0.03) 0.118 6.60 (0.03) 6.50 (0.03) 6.60 (0.09) 0.684 6.57 (0.05) 6.47 (0.03) 6.51 (0.05) 0.811 6.51 (0.03) 6.51 (0.03) 6.45 (0.09)
ECULT 0.029 2.93 (0.10) 3.34 (0.12) 3.47 (0.30) 0.109 2.97 (0.10) 3.27 (0.11) 3.55 (0.34) 0.130 3.20 (0.20) 3.38 (0.11) 2.93 (0.19) 0.890 3.23 (0.12) 3.25 (0.12) 3.06 (0.38)
ECUSM 0.069 3.73 (0.17) 4.17 (0.20) 4.87 (0.50) 0.200 3.70 (0.17) 4.20 (0.20) 4.10 (0.57) 0.310 3.90 (0.17) 3.83 (0.10) 4.13 (0.16) 0.454 4.04 (0.10) 3.85 (0.10) 3.97 (0.32)
Colour
L * 0.064 45.62 (0.47) 47.44 (0.55) 47.28 (1.40) 0.077 45.65 (0.47) 47.31 (0.55) 47.88 (1.55) 0.785 45.83 (0.68) 46.20 (0.39) 46.51 (0.64) 0.997 46.09 (0.41) 46.13 (0.41) 46.16 (1.27)
b * 0.052 3.27 (0.22) 4.02 (0.25) 4.52 (0.64) 0.023 3.26 (0.21) 3.99 (0.25) 5.05 (0.70) 0.706 3.30 (0.32) 3.49 (0.18) 3.69 (0.30) 0.502 3.42 (0.19) 3.44 (0.19) 4.15 (0.59)
Fatty Acids
IMF% LT 0.467 0.95 (0.07) 1.04 (0.08) 1.19 (0.20) 0.343 0.94 (0.07) 1.05 (0.08) 1.25 (0.22) 0.918 1.86 (0.15) 1.79 (0.08) 1.82 (0.14) 0.538 1.84 (0.09) 1.83 (0.09) 1.53 (0.27)
IMF% SM 0.536 1.15 (0.06) 1.24 (0.07) 1.27 (0.17) 0.334 1.13 (0.06) 1.25 (0.07) 1.36 (0.19) 0.689 2.23 (0.17) 2.09 (0.10) 2.21 (0.16) 0.869 2.14 (0.10) 2.18 (0.10) 2.02 (0.32)

P-values significantly different at the nominal level are in bold. Associations significant at the Bonferroni-adjusted alpha are underlined.

Bonferroni-adjusted alpha levels were as follows for single SNP association analysis: Large White =0.0083, Duroc =0.0083.

IMF Intramuscular Fat, LT M. Longissimus thoracis et lumborum muscle, SM M. semimembranosus muscle, n number of genotypes.

Ryan et al.

Ryan et al. BMC Genetics 2012 13:66   doi:10.1186/1471-2156-13-66

Open Data