Fig 1.

Phylogenetic relationships of integrase gene sequences (425 bp) obtained from 38 wild-born monkeys and apes in Gabon. Phylogenetic tree of new sequences isolated from 16 Mandrillus sphinx samples (red), one Lophocebus albigena sample (Lal; brown), one C. neglectus sample (Cne; turquoise), one Cercocebus torquatus sample (Cto; red), six C. solatus samples (blue), three C. nictitans samples (Cni; green), and two C. cephus samples (Cce; purple) and eight new sequences isolated from Pan troglodytes troglodytes (Cpz for chimpanzee; green). NHPs are indicated by the name of the species (e.g., Mnd for mandrill) and the number of the sample (e.g., 122), followed by Wd (wild) for the origin.