All plant and animal species arise by speciation—the evolutionary splitting of one species
into two reproductively incompatible species. But until recently our understanding of the …

Studies of hybrid inviability, sterility and 'speciation genes' in Drosophila have given insight
into the genetic changes that result in reproductive isolation. Here, I survey some …

Recent studies of the genetics of speciation in Drosophila have focused on two problems:(i)
identifying and characterizing the genes that cause reproductive isolation, and (ii) …

Speciation—the splitting of one species into two—occurs by the evolution of any of several
forms of reproductive isolation between taxa, including the intrinsic sterility and inviability of …

The Dobzhansky-Muller (DM) model of speciation by genic incompatibility is widely
accepted as the primary cause of interspecific postzygotic isolation. Since the introduction of …

The importance of gene duplication in evolution has long been recognized. Because
duplicated genes are prone to diverge in function, gene duplication could plausibly play a …

Hybrids between closely related species are often sterile or inviable as a consequence of
failed interactions between alleles from the different species. Most genetic studies have …

Reproductive isolation is a critical step in the process of speciation. Among the most
important factors driving reproductive isolation are genetic incompatibilities. Whether these …

A central goal of evolutionary biology is to identify the genes and evolutionary forces that
cause speciation, the emergence of reproductive isolation between populations. Despite the …

To investigate the time course of speciation, we gathered literature data on 119 pairs of
closely related Drosophila species with known genetic distances, mating discrimination …