Hybridization has long been recognized as a fundamental evolutionary process in plants
but, until recently, our understanding of its phylogenetic distribution and biological …

Hybridization has many and varied impacts on the process of speciation. Hybridization may
slow or reverse differentiation by allowing gene flow and recombination. It may accelerate …

Whether interspecific hybridization is important as a mechanism that generates biological
diversity is a matter of controversy. Whereas some authors focus on the potential of …

Beim Studium der jüngeren Kontroversen über den Darwinismus fiel mir wiederholt auf, das
sie falsche Darstellungen enthielten, so als würde es sich um irgendetwas Umfassenderes …

Like the formation of animal species, plant speciation is characterized by the evolution of
barriers to genetic exchange between previously interbreeding populations. Prezygotic …

Hybridization is frequent in many organismal groups, but its role in adaptation is poorly
understood. In sunflowers, species found in the most extreme habitats are ancient hybrids …

The study of speciation has become one of the most active areas of evolutionary biology,
and substantial progress has been made in documenting and understanding phenomena …

The African cichlid fish radiations are the most diverse extant animal radiations and provide
a unique system to test predictions of speciation and adaptive radiation theory. The past few …

Even before the publication of Darwin's Origin of Species, the perception of evolutionary
change has been a tree-like pattern of diversification-with divergent branches spreading …

Genetic analyses of reproductive barriers represent one of the few methods by which
theories of speciation can be tested. However, genetic study is often restricted to model …