FIG 1 .

Phylogenetic relationship of MS7163 and other E. coli phylogenetic group B2 strains. The maximum likelihood phylogenetic tree of MS7163 and other strains from E. coli phylogroup B2 (listed in Table S2) was reconstructed using kSNP with a k-mer size of 21 and rooted using the E. coli phylogroup D strain UMN026 as an outgroup. Branches were colored according to their ST types (Achtman MLST scheme). MS7136 (boldface) clustered into the same group of E. coli ST95 and was closely related to NMEC strain S88.