Simulation results in presence and absence of phenotypic outliers in the case of multiple linked QTLs.

Total genetic heritability was set as 50% and 70% for two different sets of simulated data. 5%-contaminated data was added to phenotypes to investigate the robustness property of the approaches. (A) Analysis results in the case of 50% genetic heritability and no outlying observation; (B) analysis results in the case of 50% genetic heritability and 5% outlying observations; (C) Analysis results in the case of 70% genetic heritability and no outlying observation; (D) analysis results in the case of 70% genetic heritability and 5% outlying observations. Threshold for each method were calculated using permutation test with 1000 replicates.