The Point of No Return: Evolution of Excess Mutation Rate Is Possible Even for Simple Mutation Models

Under constant selection, each trait has a fixed fitness, and small mutation rates allow populations to efficiently exploit the optimal trait. Therefore, it is reasonable expect that will evolve downwards. However, we find this need not be case, examining several models of mutation. While upwards evolution rate been found with frequency- or time-dependent demonstrate its possibility in much simpler context. This work uses adaptive dynamics study rate, replicator–mutator equation model evolution. Our approach differs from previous studies by considering wide variety methods represent We use finite string inspired genetics as well local on discretization unit intervals, handling beyond endpoints three ways. The main contribution demonstration can significantly more complicated than what usually expected relatively simple models.