
Phylogenetic network analysis and sequence comparison of human, chimp, and gorilla inter-AD segments. (A) Phylogenetic network showing the relationships between inter-AD segments in the three species, produced using SplitsTree. Hu indicates human; Ch, chimpanzee; Go, gorilla; Prox, proximal HERV; and Dist, distal HERV. (B) Sequence states of all variant positions in the three species are shown. Human PSVs are indicated by triangles. Sequence numbering is as in Fig. 2, up to position 507. Beyond this point, one base is added to each number to take account of the gap introduced into the human sequence to facilitate sequence alignments.











