Fig. 3

QQ-plots and Manhattan plots for TRSV sensitivities. a QQ-plot from the initial GWAS scan. Most P-values were similar to the expected diagonal in the QQ-plot, which indicates the appropriateness of the GWAS model. b A single QTL that exceeded genome-wide significance was identified on chromosome 2. Red line indicates Bonferroni-corrected threshold with an experimental type I error rate at 0.05. Significant SNPs at a false discovery rate of 1 % are highlighted in green. c QQ-plot from a second GWAS scan using a model that included the peak SNP from the initial GWAS scan (ss715581043) as a covariate. d The Manhattan plot with one covariate in the GWAS model identified no additional significant genomic signals