Escherichia coli mutators: selection criteria and migration effect.

Abstract excerpt

In silico, it has been shown that mutator alleles that increase mutation rate can be selected for by generating adaptive mutations. In vitro and in vivo, competition between wild-type bacteria and isogenic mutator mutants is consistent with this view. However, in vivo, the gain of the mutator seems to be reduced when migration is allowed. In vitro, the advantage of mutators has been described as...

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