Fig. 1
From: Species and genetic variability of sweet potato viruses in China

Phylogenetic tree of polyprotein nucleotide sequences of SPFMV, SPLV, SPVG, SPVC and SPV2 isolates. The tree was generated using MEGA X (the Maximum Likelihood method, General Time Reversible model and 1000 bootstrap replicates). Sweet potato mild mottle virus (SPMMV; Z73124) was used as an outgroup taxon