Phylogenetic analysis of SPCFV based on the CP and NaBP nucleotide sequences.

<p>Nine SPCFV isolates from wild plant species (▲) or sweetpotatoes (●) in this study are compared with 29 and 23 isolates, respectively, from previous studies. (<b>A, B</b>) Sequences for CP (<b>A</b>) and NaBP (<b>B</b>) were analyzed. Sequences cluster according to the geographical origin of the virus isolates, i.e., East Africa (SPCFV-EA) or Asia (SPCFV-Asian1 and SPCFV-Asian2). The geographical origins are unknown for isolates Le-97-598_EU375905, TN399_EU375909 and 007VIIMS_EU375897. Numbers at branches represent bootstrap values of 1000 replicates. Only bootstrap values of ≥50% are shown. Scale indicates nucleotide substitutions per site according to Tamura [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0167769#pone.0167769.ref069" target="_blank">69</a>].