X-linked Markers in the Mus musculus Hybrid Zone

Figure WN22.7. The width of clines at 13 X-linked SNP markers, across the hybrid zone between two subspecies of mice, Mus m. musculus and M. m. domesticus, in southern Germany. Such narrow clines are not seen for autosomal markers, showing that loci near the center of the X chromosome are unusually strongly selected. (Redrawn from Fig. 3 of Payseur et al. 2004.)