Oct 8, 2005

Sexual selection can resolve sex-linked sexual antagonism

Science
Arianne Y K Albert, Sarah P Otto

Abstract

Sexual selection is a potent evolutionary force. However, very few models have considered the evolution of female preferences for traits expressed in both sexes. Here we explore how female preferences coevolve with sexually antagonistic traits, which involve alleles that are beneficial to one sex but harmful to the other. We show that with a sexually antagonistic trait on the X chromosome (males XY, females XX), females evolve to prefer mates carrying alleles beneficial to daughters. In contrast, with a Z-linked trait (males ZZ, females ZW), females more often evolve mating preferences for mates carrying alleles beneficial to sons (that is, flashy displays).

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Mentioned in this Paper

Reproduction
Sex Chromosomes
Sexual Behavior, Animal
X Chromosome
Linkage Disequilibrium
Protogyny
Alleles
Genetic Polymorphism
Ilex paraguayensis homeopathic preparation
Biological Evolution

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