ML tree of the HIV-1 subtype G <i>pol</i> PR/RT sequences (~1,000 nt) from Central Africa, West Africa, Portugal and Spain.

<p>Branches are colored according to the geographic origin of each sequence as indicated in the legend (bottom left). Arcs indicate the positions of major subtype G clades circulating in Central Africa (G_CA), West Africa (G_WA-I and G_WA-II) and Cape Verde/Portugal (G_CV-PT) and the position of the subclade that comprises all CRF14_BG reference sequences (CRF14_BG-like). Black dots indicate the positions of the reference sequences classified as CRF14_BG based on full-length genome analysis. Asterisks point to key nodes with relatively high (*, <i>a</i>LRT > 0.80) and high (**, <i>a</i>LRT > 0.90) support. The tree was rooted using HIV-1 subtype A-D reference sequences. The branch lengths are drawn to scale with the bar at the center indicating nucleotide substitutions per site. AO/CD/CG: Angola/Democratic Republic of Congo/Republic of Congo; CM/GA/GQ: Cameroon/Gabon/Equatorial Guinea; NG/TG/GH/BJ/SN: Nigeria/Togo/Ghana/Benin/ Senegal; CV: Cape Verde; PT: Portugal; ES: Spain.