Recent studies of cosmopolitan Drosophila populations have found hundreds to thousands
of genetic loci with seasonally fluctuating allele frequencies, bringing temporally fluctuating …

Sexual dimorphism is one of the most prevalent, and often the most extreme, examples of
phenotypic variation within species, and arises primarily from genomic variation that is …

How natural diversity is maintained is an evolutionary puzzle. Genetic variation can be
eroded by drift and directional selection but some polymorphisms persist for long time …

Between the 1930s and 1950s, scientists developed key principles of population genetics to
try and explain the aging process. Almost a century later, these aging theories, including …

Background Understanding genetic architecture is essential for determining how traits will
change in response to evolutionary processes such as selection, genetic drift and/or gene …

Sexually antagonistic (SA) genetic variation—in which alleles favored in one sex are
disfavored in the other—is predicted to be common and has been documented in several …

When different alleles are favored in different environments, dominance reversal where
alternate alleles are dominant in the environment in which they are favored can generate net …

Selection varies between categories of individuals, with far-reaching ramifications: Sex-
specific selection can impede or accelerate adaptation, and differences in selection between …

Since the autosomal genome is shared between the sexes, sex-specific fitness optima
present an evolutionary challenge. While sexually antagonistic selection might favor …

Genetic variance (VG) in fitness related traits is often unexpectedly high, evoking the
question how VG can be maintained in the face of selection. Sexually antagonistic (SA) …