Summary of the CGH and WGPScanning analyses of O157 and non-O157 EHEC strains. Results from the CGH analysis of 29 EHEC strains using an O157 oligoDNA microarray are shown in the upper half of each segment, and those from the genome structural analysis by the WGPScaning method in the lower half. Above the CGH data, genes on prophages (Sps), prophage-like elements (SpLEs), and plasmids are indicated in red (the first row), repeated genes in black (the second row), and genes conserved or partially conserved in K-12 in green or pink, respectively (the third row). Genes judged as present in the CGH analysis are indicated in blue and those absent in yellow. Singleton and repeated genes classified as 'uncertain' are indicated in pink and gray, respectively. Results from the WGPScanning analysis are presented as follows. Segments of the same sizes as those from O157 Sakai are indicated in gray, and those with large (≥5 kb) and small (<5 kb) size reductions in blue and light blue, respectively. The segments with large (≥5 kb) and small (<5 kb) size increments are indicated in orange and yellow, respectively, and those not amplified in red. When Sps, SpLEs, or their corresponding elements were not integrated in relevant loci, such regions are depicted as blank areas. The segments containing potential integration sites for large genomic elements are indicated by arrowheads. Positions of known and newly identified integration sites for Stx phages and LEE elements are indicated between the panels for the CGH and WGPScanning data. In this figure, each segment is not drawn to scale but to the gene position in the data presentation of the CGH analyses. The data from the first half of EHEC chromosomes are shown in this figure, and those from the second half and plasmids in Figure 2.