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. 1999 Aug;73(8):6810–6820. doi: 10.1128/jvi.73.8.6810-6820.1999

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FIG. 1 — Phylogenetic trees of HIV-1 sequences. The trees were constructed from part of the env sequences including those in the V3 region (approximately 390 bp) (A) and part of the pol sequence that encodes integrase (288 bp) (B). The results obtained by the six-parameter method are shown. Each of the pol and env sequences obtained in 1994, 1995, and 1996 are boxed, and the pol and env sequences from the M/O recombinants are circled. Subtypes are indicated by brackets. Bootstrap values of key nodes are shown.

FIG. 1 — Phylogenetic trees of HIV-1 sequences. The trees were constructed from part of the env sequences including those in the V3 region (approximately 390 bp) (A) and part of the pol sequence that encodes integrase (288 bp) (B). The results obtained by the six-parameter method are shown. Each of the pol and env sequences obtained in 1994, 1995, and 1996 are boxed, and the pol and env sequences from the M/O recombinants are circled. Subtypes are indicated by brackets. Bootstrap values of key nodes are shown.