Fig. 2

Phylogenetic analysis of cytochrome c oxidase sequences (272 bp) belonging to consensus sequence obtained from Aprilia lice and all representative haplotypes within the clade A, identified so far, retrieved from the GenBank database. Phylogenetic trees of alignment were constructed using the neighbor-joining method by bootstrapping with 1000 replicates, and phylogenetic distances were measured by Tajima–Nei model. Only values > 50% are given. Numbers at nodes indicate the level of bootstrap support. Four sequences representative of the haplotypes B, C, D and E were also included in the analysis. A chimpanzee louse Pediculus schaeffi was used as an outgroup