Fig. 2.

Genome-wide scan to measure the strength of association between the inferred haplotypes and the phenotype means for slope. The strength of the associations was determined by a regression-based test statistic, and its nominal P value was computed. All P values were transformed using −log₁₀ (P value). We performed permutation testing and the minimum P values across all haplotype blocks provided the multiple test-adjusted thresholds (dotted lines). Position in the genome, divided by chromosome, is depicted along the x axis. 20 is used for the X chromosome