Fig. 4From: Chronological set of E. coli O157:H7 bovine strains establishes a role for repeat sequences and mobile genetic elements in genome diversificationa NcoI restriction site maps of the chromosomes from FRIK804 (outer), FRIK1275 (middle), and FRIK1625 (inner). An alignment and comparison of farm X strains detected the presence of two indels which distinguished each strain. The identity of each indel was determined using the nucleotide sequence of FRIK804. The location of indel-3 was consistent with the absence of the stx2-prophage in FRIK1625. Indel-4 was determined to overlap portions of two adjacent prophage, Φ804–9 and Φ804–10. b Hierarchical clustering and pairwise alignment scoring of NcoI chromosome restriction maps was used to assess relative similarity of the three farm X strains with 30 other E. coli. EHEC O157:H7 strains grouped together (black), and farm X strains (underlined) formed a cluster (bold), indicating that these strains were closely related to one another. FRIK966 is a lineage group II strain included for comparative purposesBack to article page