文章基本信息

标题：Evolution of vertical and oblique transmission under fluctuating selection
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作者：Yoav Ram ; Uri Liberman ; Marcus W. Feldman 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2018
卷号：115
期号：6
页码：E1174-E1183
DOI：10.1073/pnas.1719171115
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：The evolution and maintenance of social learning, in competition with individual learning, under fluctuating selection have been well-studied in the theory of cultural evolution. Here, we study competition between vertical and oblique cultural transmission of a dichotomous phenotype under constant, periodically cycling, and randomly fluctuating selection. Conditions are derived for the existence of a stable polymorphism in a periodically cycling selection regime. Under such a selection regime, the fate of a genetic modifier of the rate of vertical transmission depends on the length of the cycle and the strength of selection. In general, the evolutionarily stable rate of vertical transmission differs markedly from the rate that maximizes the geometric mean fitness of the population. The evolution of rules of transmission has dramatically different dynamics from the more frequently studied modifiers of recombination, mutation, or migration.
关键词：periodic selection ; phenotypic polymorphism ; modifier theory ; fitness optimum ; evolutionary stability