Abstract
Soybean mosaic virus (SMV) is a devastating plant virus classified in the family Potyviridae, and known to infect cultivated soybeans (Glycine max). In this study, seven new SMVs were isolated from wild soybean samples and analyzed by whole-genome sequencing. An updated SMV phylogeny was built with the seven new and 83 known SMV genomic sequences. Results showed that three northeastern SMV isolates were distributed in clade III and IV, while four southern SMVs were grouped together in clade II and all contained a recombinant BCMV fragment (~900 bp) in the upstream part of the genome. This work revealed that wild soybeans in China also act as important SMV hosts and play a role in the transmission and diversity of SMVs.
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