Fig. 6From: Rates of evolutionary change of resident Escherichia coli O157:H7 differ within the same ecological nicheComparison of the current study’s method (inside ring) to NCBI’s pathogen detection project (outer ring) reveled homology of results in STEC O157:H7 classification. To the right of the main tree are enlarged clades specific trees of clades 3 and 4 for greater clarity as they each contain more than one SNP clusterBack to article page