FIG. 3.

Subregion tree analyses of the CRF62_BC genome. The phylogenetic trees of the five mosaic segments defined by bootscanning plot analysis were constructed with MEGA 5.0 using the neighbor-joining method. The subtype references are derived from the Los Alamos HIV Sequence Database. The reliability of tree topology was assessed by bootstrap analysis with 1,000 replications, and only bootstrap values above 0.7 are shown at the corresponding nodes. The sequences of CRF62_BC are marked in gray.