There have been a variety of approaches taken to try to characterize and identify the genetic
basis of adaptation in nature, spanning theoretical models, experimental evolution studies …

Males and females often differ in their fitness optima for shared traits that have a shared
genetic basis, leading to sexual conflict. Morphologically differentiated sex chromosomes …

Progress on understanding how genome structure evolves is accelerating with the arrival of
new genomic, comparative, and theoretical approaches. This article reviews progress in …

It is often stated that polymorphisms for mutations affecting fitness of males and females in
opposite directions [sexually antagonistic (SA) polymorphisms] are the main selective force …

Sexual dimorphism results from sex-biased gene expression, which evolves when selection
acts differently on males and females. While there is an intimate connection between sex …

The attention given to heteromorphism and genetic degeneration of “classical sex
chromosomes”(Y chromosomes in XY systems, and the W in ZW systems that were studied …

Intralocus sexually antagonistic selection occurs when an allele is beneficial to one sex but
detrimental to the other. This form of selection is thought to be key to the evolution of sex …

Males and females often have marked phenotypic differences, and the expression of these
dissimilarities invariably involves sex differences in gene expression. Sex-biased gene …

How common is balancing selection, and what fraction of phenotypic variance is attributable
to balanced polymorphisms? Despite decades of research, answers to these questions …

Many genes are subject to contradictory selection pressures in males and females, and
balancing selection resulting from sexual conflict has the potential to substantially increase …