Discrete Evolutionary Genetics: Multiplicative Fitnesses and the Mutation-Fitness Balance
Discrete Evolutionary Genetics: Multiplicative Fitnesses and the Mutation-Fitness Balance作者机构:不详
出 版 物:《Applied Mathematics》 (应用数学(英文))
年 卷 期:2011年第2卷第1期
页 面:11-22页
学科分类:07[理学] 0701[理学-数学] 070101[理学-基础数学]
主 题:Evolutionary Genetics Fitness Landscape Selection Mutation Stochastic Models Quasi-Stationarity
摘 要: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.