Patterns of base substitution mutation (bpsm) rates in 100-kb intervals extending clockwise from the origin of replication (oriCI) on chromosome 1 (chr1) and patterns of bpsm rates of concurrently replicated 100-kb intervals on chromosome 2 (chr2) for MMR-deficient Vibrio fischeri (A) and Vibrio cholerae (B). Patterns of bpsm rates on chr2 appear to map to those of concurrently replicated regions on chr1 in both species, but the linear regressions between concurrently replicated intervals are not significant on chr1 and chr2 in either V. fischeri or V. cholerae (V. fischeri, F = 0.62, df = 14, P = 0.4442, r2 = 0.04; V. cholerae, F = 0.07, df = 10, P = 0.7941, r2 = 0.01).