Table 1 . Summary of sample information. Coverage denotes the mean depth of genomic coverage and chosen coverage range (in square brackets) of sites analyzed in each population. Mapped sites: sites covered by at least one read. Deviating sites are bi-allelic sites (minor allele frequency >0.05) with read numbers for the two parental alleles deviating significantly from 1:1 after Benjamini-Hochberg procedure (FDR=0.05). Sites with more than two alleles are not used in our analysis.