Figure 3.

Maximum likelihood (ML) phylogenies based on the HBB-T1 (A) and HBB-T2 (B) alignments to the left of the recombination breakpoints identified by SBP. Haplotypes are represented by whole gene sequences with mapped conversion tracts. In HBB-T1, tracts identified by the method of Betrán et al. [56] are in light grey, tracts identified by GENECONV are in dark grey. The locations of the β-globin polymorphic site 52 and of the Chi sequence (see Section 4.2.) are depicted by arrows. Exons are marked by rectangles above the alignment.