Figure. Phylogenetic analysis of complete hexon gene nucleotide sequences from human and simian adenoviruses. The maximum-likelihood tree was constructed as described in the text. Black dots indicate strains sequenced in this study; the sequences were deposited in GenBank (accession nos. KF053121–KF053130). Sequences for all reference strains used in the phylogenetic analysis were obtained from GenBank. Asterisks (*) indicate the proposed new candidate simian species. Numbers along branches and at nodes indicate bootstrap values. Scale bar indicates the branch lengths measured in the number of nucleotide and amino acid substitutions per site. AdV, adenovirus; ATCC, American Type Culture Collection; CHN, China; CgueAdV, Colobus guereza adenovirus; GgorAdV, Gorilla gorilla gorilla adenovirus; HAdV, human adenovirus; MfasAdV, Macaca fascicularis adenovirus; MmulAdV, Macaca mulatta adenovirus; PbadAdV, Piliocolobus badius adenovirus; Pham, Papio hamadryas adenovirus; PtroAdV, Pan troglodytes schweinfurthii adenovirus; and SAdV, simian adenovirus.