Alleles that introgress between species can influence the evolutionary and ecological fate of
species exposed to novel environments. Hybrid offspring of different species are often unfit …

Hybridization may drive rare taxa to extinction through genetic swamping, where the rare
form is replaced by hybrids, or by demographic swamping, where population growth rates …

Understanding why some evolutionary lineages generate exceptionally high species
diversity is an important goal in evolutionary biology. Haplochromine cichlid fishes of Africa's …

Many groups of closely related species have reticulate phylogenies. Recent genomic
analyses are showing this in many insects and vertebrates, as well as in microbes and …

Domestication is a co-evolutionary process that occurs when wild plants are brought into
cultivation by humans, leading to origin of new species and/or differentiated populations that …

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 played an important role in the evolution of many lineages. With the
growing availability of genomic tools and advancements in genomic analyses, it is becoming …

Speciation is often thought of as a slow process due to the waiting times for mutations that
cause incompatibilities, and permit ecological differentiation or assortative mating. Cases of …

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 …

Summary Publication of The Genetics of Colonizing Species in 1965 launched the field of
invasion genetics and highlighted the value of biological invasions as natural ecological and …