Changes in chromosome numbers may strongly affect reproductive barriers, because
individuals heterozygous for distinct karyotypes are typically expected to be at least partially …

Comparative population genomics is an ascendant field using genomic comparisons
between species to draw inferences about forces regulating genetic variation. Comparative …

Since allozymes were first used to assess genetic diversity in the 1960s and 1970s,
biologists have attempted to characterize gene pools and conserve the diversity observed in …

Migration is typically associated with risk and uncertainty at the population level, but little is
known about its cost–benefit trade‐offs at the species level. Migratory insects in particular …

The purging of deleterious alleles has been hypothesized to mitigate inbreeding depression,
but its effectiveness in endangered species remains debatable. To understand how …

Reshuffling of genetic variation occurs both by independent assortment of chromosomes
and by homologous recombination. Such reshuffling can generate novel allele combinations …

Large‐scale chromosome rearrangements, such as fissions and fusions, are a common
feature of eukaryote evolution. They can have considerable influence on the evolution of …

We discuss the genetic, demographic, and selective forces that are likely to be at play in
restricting observed levels of DNA sequence variation in natural populations to a much …

Major changes in chromosome number and structure are linked to a series of evolutionary
phenomena, including intrinsic barriers to gene flow or suppression of recombination due to …

The effective size of a population (N e), which determines its level of neutral variability, is a
key evolutionary parameter. N e can substantially depart from census sizes of present-day …