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Distribution of UPEC strain 536 and CFT073-specific genes among 125 nonpathogenic and pathogenic E. coli isolates. Genes were grouped with the CLUSTER software based on the presence or absence of genes. Red and black denote the presence or absence of ORFs, respectively. Groups of genes belonging to distinct islands or phages are indicated. The genomic relationships of the 125 E. coli strains are indicated in Fig. 4.
