Phylogenetic analyses of the ConEnv, all consensus Envs, and the longitudinal isolates derived from experimental infection utilized in consensus gene development.

<p>A phylogenetic tree of aligned plasma amino acid sequences (gp90 regions) was constructed by the neighbor joining method from Kimura corrected distances with the optimality criterion set to distance. The tree was rooted to the ancestral Env, EV0. Bootstrap values were determined over 1000 iterations and are indicated at the nodes of the branches. Branch lengths are proportional to the distance existing between the sequences.