FIG. 2.

Phylogenetic relationships in a pol region of newly derived SIVmnd sequences from adult and juvenile mandrills living in a semi-free-ranging colony at CIRMF in Gabon to other primate lentiviruses. This unrooted neighbor-joining tree (see Materials and Methods for further details) was inferred from amino acid comparisons from the pol integrase region; 138 amino acid sites were included. SIVmndGB1 corresponds to the sequence of the molecular clone (38). The numbers correspond to bootstrap support for phylogenetic clusterings. Bootstrap values lower than 75% are not shown. Branch lengths are drawn to scale, with the scale bar indicating amino acid replacements per site.