The chicken continues to hold its position as a leading model organism within many areas of
research, as well as being a major source of protein for human consumption. The First …

Sex chromosomes are widespread in species with separate sexes. They have evolved many
times independently, and display a truly remarkable diversity. New sequencing technologies …

Genomes are typically mosaics of regions with different evolutionary histories. When
speciation events are closely spaced in time, recombination makes the regions sharing the …

The idea that sex differences in selection drive the evolution of suppressed recombination
between sex chromosomes is well developed in population genetics. Yet, despite a now …

The major histocompatibility complex (MHC) is of central importance to the immune system,
and an optimal MHC diversity is believed to maximize pathogen elimination. Birds show …

Structural rearrangements have been shown to be important in local adaptation and
speciation, but have been difficult to reliably identify and characterize in non-model species …

In coevolutionary arms races, interacting species impose selection on each other,
generating reciprocal adaptations and counter adaptations. This process is typically …

Germline mutations are the ultimate source of genetic variation and the raw material for
organismal evolution. Despite their significance, the frequency and genomic locations of …

Antagonistic selection has long been considered a major driver of the formation and
expansion of sex chromosomes. For example, sexually antagonistic variation on an …

There is considerable evidence for mitochondrial-nuclear co-adaptation as a key
evolutionary driver. Hypotheses regarding the roles of sex-linkage have emphasized Z …