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Table 5 Evidence for QTL significant at the 5% chromosome-wide level for traits related to muscularity and meat quality by chromosome obtained by F2 analysis. Estimated significance levels (F-value), position, % of F2 variance explained by each QTL, and gene effects.

From: QTL for microstructural and biophysical muscle properties and body composition in pigs

Trait SSC Position [cM] F-Value % Variance1 Additive   Dominance  
      Effect2 S.E. Effect2 S.E.
pH24ML 1 21 6.9* 1.8 -0.027 0.007 -0.003 0.013
C1ML 2 56 5.88* 1.4 0.146 0.045 0.098 0.118
FOM 3 58 7.9** 2.1 1.66 0.49 1.69 0.78
MCOpto 3 0 13.4**** 3.6 -1.74 0.35 0.57 0.51
FOM 4 80 19.0**** 5.1 3.21 0.53 0.06 0.89
MAML 4 78 13.8**** 3.7 1.27 0.25 0.47 0.42
pH24ML 4 90 6.4* 1.7 -0.022 0.007 -0.021 0.012
C1ML 4 26 5.4* 1.5 0.021 0.039 -0.248 0.076
MAML 6 175 11.4*** 3.0 -0.99 0.23 0.52 0.35
C24ML 6 138 6.1* 1.5 -0.273 0.083 -0.285 0.184
pH1ML 13 76 5.9* 1.6 0.038 0.012 0.021 0.016
pH24ML 15 63 5.7* 1.5 -0.031 0.009 0.026 0.024
MCOpto 15 117 8.0*** 2.2 -1.27 0.37 -0.89 0.50
pH24ML 18 66 4.8* 1.3 -0.019 0.007 -0.250 0.012
  1. *: significant at the 5% chromosome-wide level, **: significant at the 1% chromosome-wide level, ***: significant at the 5% genome-wide level, ****: significant at the 1% genome-wide level
  2. 1the fraction of phenotypic variance in the F2 explained by a QTL; calculated as the proportion of residual variance of the statistical models with and without the QTL effect
  3. 2positive values of additive genetic and dominance effects imply higher trait values forced by the Duroc allele;