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Phylogenetic relationships between strain 673 and 19 E. coli strains. Plasmid replicon types are labeled with pink squares, IS elements and drug resistance genes are labeled with green circles. Adk, fumC, gyrB, icd, mdh, purA, and recA were used as MLST sequences. MEGA version 7.0, which is based on the neighbor-joining method, was used to construct a phylogenetic tree of E. coli strains.
