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. 2000 Sep 5;97(19):10465–10470. doi: 10.1073/pnas.180063397

Figure 5.

Figure 5

Weak selection increases the effect of sex on mutator fixation. The fixation probability (1,000 simulations per point) of a 100-fold mutator allele, with a rate of sex of 10−4 per gene per generation (▴) or without genetic exchanges (□), is presented as a function of the strength of selection. All selective values of favorable alleles were multiplied by 0.5, 0.75, 1, 1.5, 2, and 3. The effect of sex on the fate of mutators (Inline graphic) is the ratio of the frequency of mutator fixation without sex to the frequency of mutator fixation with sex. The population size is 109 bacteria.