The disruption of meiotic sex chromosome inactivation (MSCI) has been proposed to be a
major developmental mechanism underlying the rapid evolution of hybrid male sterility. We …

When hybridisation carries a cost, natural selection is predicted to favour evolution of traits
that allow assortative mating (reinforcement). Incipient speciation between the two European …

Over the 180 My since their origin, the sex chromosomes of mammals have evolved a gene
repertoire highly specialized for function in the male germline. The mouse Y chromosome is …

Cattails (Typha spp.) have become an increasingly dominant component of wetlands in
eastern North America and this dominance is largely attributable to the high frequency of …

The red brocket (Mazama americana) is a South American deer with a wide geographical
distribution that presents different chromosomal variants depending on their location. At …

Expression divergence, rather than sequence divergence, has been shown to be important
in speciation, particularly in the early stages of divergence of traits involved in reproductive …

Numerous loci of large effect have been shown to underlie phenotypic variation between
species. However, loci with subtle effects are presumably more frequently involved in …

Testes-biased genes evolve rapidly and are important in the establishment, solidification,
and maintenance of reproductive isolation between incipient species. The Anopheles …

Background Small mammals are important reservoirs for pathogens in military conflicts and
peacekeeping operations all over the world. This study investigates the rodent communities …

Sexual isolation, a reproductive barrier, can prevent interbreeding between diverging
populations or species. Sexual isolation can have a clear genetic basis; however, it may …