FIG. 5.

Phylogenetic relationships in a pol region of SIVmnd and SIVdrl strains isolated from adult and juvenile mandrills and drills of distinct geographic origins (Table 1). (A) Unrooted phylogenetic tree showing both the SIVmnd-1 and SIVmnd-2 clades; (B and C) rooted phylogenetic trees showing the SIVmnd-1 clade and the SIVmnd-2 clade, respectively. The three phylogenetic trees were inferred by neighbor joining. The unrooted phylogeny was inferred from amino acid sequence comparisons (138 amino acid sites) of pol integrase. The two rooted phylogenies were inferred from nucleotide sequence comparisons (414 nucleotide sites) from the same pol region.