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SNP phylogeny from whole genomes from VGIIb isolates. Maximum-parsimony phylogenetic analysis was performed on all isolate genomes within VGIIb. The VGIIb tree includes 528 SNPs (147 parsimony informative) from 17 isolates (CI = 1.0). For country or state abbreviations, see the legend to Fig. 1. Numbers in black on top of branches are SNP length, and numbers in red next to branches are the bootstrap values generated from 500 generations.
