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Discrete Evolutionary Genetics: Multiplicative Fitnesses and the Mutation-Fitness Balance
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Abstract
We revisit the multi-allelic mutation-fitness balance problem especially when fitnesses are multiplicative. Using ideas arising from quasi-stationary distributions, we analyze the qualitative differences between the fitness-first and mutation-first models, under various schemes of the mutation pattern. We give some stochastic domination relations between the equilibrium states resulting from these models.
KeywordsEvolutionary GeneticsFitness LandscapeSelectionMutationStochastic ModelsQuasi-Stationarity
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