Intrinsic postzygotic barriers can play an important and multifaceted role in speciation, but
their contribution is often thought to be reserved to the final stages of the speciation process …

Botanists have long believed that hybrid speciation is important, especially after
chromosomal doubling (allopolyploidy). Until recently, hybridization was not thought to play …

Speciation, that is, the evolution of reproductive barriers eventually leading to complete
isolation, is a crucial process generating biodiversity. Recent work has contributed much to …

The role of chromosomal inversions in adaptation and speciation is controversial.
Historically, inversions were thought to contribute to these processes either by directly …

We study the evolution of inversions that capture locally adapted alleles when two
populations are exchanging migrants or hybridizing. By suppressing recombination between …

The African malaria mosquito, Anopheles gambiae sensu stricto (A. gambiae), provides a
unique opportunity to study the evolution of reproductive isolation because it is divided into …

Chemosensory speciation is characterized by the evolution of barriers to genetic exchange
that involve chemosensory systems and chemical signals. Here, we review some …

Evolutionary biology has long sought to explain how new traits and new species arise.
Darwin maintained that competition is key to understanding this biodiversity and held that …

The claim that eukaryotic micro-organisms have global geographic ranges, constituting a
significant departure from the situation with macro-organisms, has been supported by …

Much progress has been made in the past two decades in understanding Darwin's mystery
of the origins of species. Applying genomic techniques to the analysis of laboratory crosses …