Figure 1: Unrooted maximum likelihood phylogenetic tree for HPV6 variants reconstructed based on a dataset of 184 nucleotide sequences of 453 residues with the TrN + I +G substitution model and a bootstrap of 1000 replicates. Values above 70% were considered significant. (African variants: AF; Australian variants: AUS; Brazilian variants: BR; Slovenian variants: SL.) Red: HPV6A; green: HPV6B1; purple: HPV6B2; blue: HPV6B3. Sequences in black are HPV6B that cannot be classified into sublineages.