Fig. 5
From: Development of neurologic diseases in a patient with primate T lymphotropic virus type 1 (PTLV-1)
Phylogenetic analysis of PTLV-1 envelope (env) sequences. a ML tree inferred using 269 HTLV-1 and STLV-1 taxa and an env alignment of 426-bp. Node support determined using 1000 nonparametric bootstraps. Only bootstrap values >60 are shown. Cosmo: cosmopolitan. b Bayesian inferred tree using a subset of env sequences identified from the ML analysis as having high genetic identify to HTLV-1NIH00261 and using selected West African, cosmopolitan, and Australomelanesian reference HTLV-1s for a total of 49 taxa. Posterior probabilities ≥0.7 are shown at nodes. Scale bar is in unit of time relative to the mean substitution rate used for the analysis. HTLV-1NIH00261 is shown in green text and with a green arrow. HTLV-1 from three Africans infected with STLV-1 from sooty mangabey monkeys are shown in blue text