The dot plot was generated by aligning the OR1RF genome against the V583 genome using BLASTN (e-value 1e-10). The alignment pairs were plotted according to their genome coordinates. The visible areas of divergences are labeled using 'Δ ' to indicate a sequence absent in OG1RF and '∇ ' to indicate a sequence unique to OG1RF (locus tag OG1_xxxx) when compared with V583 (locus tag EFxxxx). Phages 1, 3, 4, 5, 6, 7 of V583 (φ1 to 7; see []) and the PAI locations, all of which are missing from OG1RF, are also indicated.Copyright information:Taken from "Large scale variation in illustrated by the genome analysis of strain OG1RF"http://genomebiology.com/2008/9/7/R110Genome Biology 2008;9(7):R110-R110.Published online 8 Jul 2008PMCID:PMC2530867.