Fig. 4

Phylogeny of deduced TAP2 amino acid sequences from selected species. The evolutionary history was inferred by using the Maximum Likelihood method based on the Le and Gascuel 2008 model [76]. The percentage of trees in which the associated taxa clustered together (100 bootstrap trials) are shown next to the branches. The tree is drawn to scale, with branch lengths measured in the number of substitutions per site. Positions with less than 95% site coverage were eliminated. For sequences not originating from the selected haplotypes accession numbers are shown in parenthesis. Gene sequences linked to haplotypes containing the PSMB8F gene variant (Fig. 2) are shown using red font. Sequence references not shown in figure can be found in [31]. The tree is unrooted and some bootstrap values are not shown for clarity