Prevalence of Human Papillomavirus Variants and Genetic Diversity in the L1 Gene and Long Control Region of HPV16, HPV31, and HPV58 Found in North-East Brazil

Figure 2

Neighbor joining phylogenetic tree of HPV16 variants based on 759 pb of LCR. Four clusters were identified as lineages A, B, C, and D. Reference sequences are listed in Table 2. Viral lineages analyzed in this study (KJ452220-452242) are clustered into A and D branches. Only bootstrap values above 50% are represented in the branches.