Phylogenetic network based on complete mtDNA genome sequences. Nomenclature of individuals is as in Table 1. Numbers along the links refer to nucleotide positions; suffixes are transversions; underlining indicates recurrent mutations; the order of the mutations on a path not interrupted by any branching or distinguished nodes is arbitrary. The same topology was supported by bootstraps, using NJ and 1000 replicates; the bootstrap values higher than 50% are shown over the branches. The star shows the position where the chimpanzee sequence roots in the network.