Fig. 6.

Phylogenetic trees reconstructed using the amino acid sequences of proteins P1, HC-Pro, and P3. Phylogenetic trees were reconstructed using the maximum-likelihood method in MEGA 6. Numbers at each node indicate bootstrap percentages based on 1,000 replicates in maximum-likelihood tree. Horizontal branch length is drawn to scale with the bar indicating 0.2 nt or 0.5 nt replacements per site. SPMMV(Z73124) was used as the outgroup. Sweet potato feathery mottle virus (SPFMV), Sweet potato virus C (SPVC), Sweet potato virus G (SPVG), Sweet potato virus 2 (SPV2), Sweet potato latent virus (SPLV). Other abbreviations: P1; protein 1, HC-Pro; helper component proteinase, P3; protein 3.