We review knowledge about the roles of sex chromosomes in vertebrate hybridization and
speciation, exploring a gradient of divergences with increasing reproductive isolation …

Aerobic metabolism in eukaryotic cells requires extensive interactions between products of
the nuclear and mitochondrial genomes. Rapid evolution of the mitochondrial genome …

Despite the impressive growth of knowledge on the phylogenetic systematics of dart-poison
frogs and their relatives (Dendrobatoidea) over the past decade, many problems remain to …

Speciation is driven by the evolution of reproductive isolating barriers that reduce, and
ultimately prevent, substantial gene flow between lineages. Despite its central role in …

True toads of the genus Rhinella are among the most common and diverse group of
Neotropical anurans. These toads are widely distributed throughout South America …

The radiation of Palearctic green toads (Bufotes) holds great potential to evaluate the role of
hybridization in phylogeography at multiple stages along the speciation continuum. With …

The evolution of postzygotic reproductive isolation is an important component of speciation.
But before isolation is complete there is sometimes a phase of heterosis in which hybrid …

Asexual reproduction can be triggered by interspecific hybridization, but its emergence is
supposedly rare, relying on exceptional combinations of suitable genomes. To examine how …

Understanding the relative roles of intrinsic and extrinsic reproductive barriers, and their
interplay within the geographic context of diverging taxa, remains an outstanding challenge …

Coordination between nuclear and mitochondrial genomes is critical to metabolic processes
underlying animals' ability to adapt to local environments, yet consequences of mitonuclear …