Sorting of ancestral polymorphism in hybrids is driven by recombination rate variation and genetic load.

(A) Heatmap showing the fraction of sorted 20 kbp windows and the direction of sorting (ancestry component fixed) as a function of recombination rate and gene density quantiles in each hybrid population. (B) Coding regions are significantly enriched for the F. aquilonia ancestry component in all hybrid populations (P F. aquilonia allele fixed, 1: F. polyctena allele fixed) as a function of the fraction of SNPs within CDS (x-axis). Confidence intervals (in gray) were obtained using 500 genomic permutations (white line: median of the permutation approach). The data underlying this figure can be found in https://doi.org/10.6084/m9.figshare.c.6140793.v3. CDS, coding sequence; SNP, single-nucleotide polymorphism.