Although the X chromosome is usually similar to the autosomes in size and cytogenetic
appearance, theoretical models predict that its hemizygosity in males may cause unusual …

Population genetics theory predicts that X (or Z) chromosomes could play disproportionate
roles in speciation and evolutionary divergence, and recent genome-wide analyses have …

Sexual reproduction is a fundamental aspect of life. It is defined by the occurrence of meiosis
and the fusion of two gametes of different sexes or mating types. Sex-determination …

Two empirical rules suggest that sex chromosomes play a special role in speciation. The first
is Haldane's rule–the preferential sterility and inviability of species hybrids of the …

The X or Z chromosome has several characteristics that distinguish it from the autosomes,
namely hemizygosity in the heterogametic sex, and a potentially different effective …

In this paper, we present results of the first comprehensive study of the introgression of both
autosomal and sex-chromosome markers across the central European portion of the hybrid …

Females and males of many animals exhibit a striking array of sexual dimorphisms, ranging
from the primary differences of the gametes and gonads to the somatic differences often …

A faster rate of adaptive evolution of X‐linked genes compared with autosomal genes can
be caused by the fixation of recessive or partially recessive advantageous mutations, due to …

Mutation has traditionally been considered a random process, but this paradigm is
challenged by recent evidence of divergence rate heterogeneity in different genomic …

Using cline fitting and divergence population genetics, we tested a prediction of Haldane's
rule: autosomal alleles should introgress more than z-linked alleles or mitochondrial …