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GIG-EM phylogenetic trees. Phylogenetic trees are drawn based on concatenations of the genetic markers dinG, tonB, and DPP of the ECOR E. coli reference strains (A), of the ECOR reference strains with KC series and JO series isolates (B), of the ECOR reference strains with N series isolates, which were utilized as test isolates (C), and of the ECOR reference strains with all E. coli isolates (D). *, branches with bootstrap confidence levels of >95.
