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• W2139279517 abstract "Here, we review the recently burgeoning literature on color polymorphisms, seeking to integrate studies of the maintenance of genetic variation and the evolution of reproductive isolation. Our survey reveals that several mechanisms, some operating between populations and others within them, can contribute to both color polymorphism persistence and speciation. As expected, divergent selection clearly can couple with gene flow to maintain color polymorphism and mediate speciation. More surprisingly, recent evidence suggests that diverse forms of within-population sexual selection can generate negative frequency dependence and initiate reproductive isolation. These findings deserve additional study, particularly concerning the roles of heterogeneous visual environments and correlational selection. Finally, comparative studies and more comprehensive approaches are required to elucidate when color polymorphism evolves, persists, or leads to speciation. Here, we review the recently burgeoning literature on color polymorphisms, seeking to integrate studies of the maintenance of genetic variation and the evolution of reproductive isolation. Our survey reveals that several mechanisms, some operating between populations and others within them, can contribute to both color polymorphism persistence and speciation. As expected, divergent selection clearly can couple with gene flow to maintain color polymorphism and mediate speciation. More surprisingly, recent evidence suggests that diverse forms of within-population sexual selection can generate negative frequency dependence and initiate reproductive isolation. These findings deserve additional study, particularly concerning the roles of heterogeneous visual environments and correlational selection. Finally, comparative studies and more comprehensive approaches are required to elucidate when color polymorphism evolves, persists, or leads to speciation. positive frequency-dependent selection by predators such that rare prey suffer higher predation; often found in aposematic mimicry systems. warning coloration that advertises unpalatability of prey to predators. negative frequency-dependent selection by predators such that rare prey suffer less predation than common prey. non-linear selection in which multiple traits have an interactive effect on fitness; specific suites of traits are favored over others. the case where the fitness of an allele (or trait) in the population depends upon its density. selection where extremes of a phenotypic distribution are favored over intermediate phenotypes within a population. the case where different phenotypes are favored over intermediates in different environments and populations. selection where the fitness of an allele depends upon its frequency in the population; selection favoring the rare allele is negative frequency-dependent, selection favoring the common allele is positive frequency-dependent. the movement of alleles between populations via migration and subsequent survival and successful reproduction between immigrants and non-immigrants. A gene or linkage group that can produce a signal, detect the signal in others and direct benefit to others possessing that signal. the case where individuals heterozygous for an allele have a fitness advantage compared with homozygotes (also known as heterozygote advantage or over-dominance); it can be associated with disassortative mating between homozygotes. antagonism between genes at the same locus in the two sexes. antagonism between male and female phenotypes encoded by alleles at different loci in each sex. a group of sympatric species with a common mimetic pattern. two or more unpalatable species that converge on the same warning color pattern. negative frequency-dependent sexual selection favoring rare male morphs over common ones (often via female mate choice). the situation where characteristics that enhance the reproductive success of one sex reduce the fitness of the other." @default.
• W2139279517 created "2016-06-24" @default.
• W2139279517 creator A5018239990 @default.
• W2139279517 creator A5079735697 @default.
• W2139279517 date "2007-02-01" @default.
• W2139279517 modified "2023-10-04" @default.
• W2139279517 title "Linking color polymorphism maintenance and speciation" @default.
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• W2139279517 doi "https://doi.org/10.1016/j.tree.2006.10.005" @default.
• W2139279517 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/17055107" @default.
• W2139279517 hasPublicationYear "2007" @default.
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