Fig. 1

H12 signal of positive selection spanning GSTe locus. H12 values range from 0 to 1, with higher values indicating excessive haplotype sharing, a signature of recent selection. The y-axis runs from 0 to 1 for each cohort while the x-axis shows positions along the chromosome 2RL. Peaks of H12 centered on GSTe genes cluster are highlighted with a grey, vertical bar