Figure 2From: Ancient, independent evolution and distinct molecular features of the novel human T-lymphotropic virus type 4Similarity plot analysis of the full-length HTLV-4(1863LE) and PTLV genomes using a 200-bp window size in 20 step increments on gap-stripped sequences. The F84 (maximum likelihood) model was used with a transition-to-transversion ratio of 2.28.Back to article page