Studies in diverse biological systems have indicated that host–parasite co-evolution is
responsible for the extraordinary genetic diversity seen in some genomic regions, such as …

Adaptive genetic variation has been thought to originate primarily from either new mutation
or standing variation. Another potential source of adaptive variation is adaptive variants from …

The cultivated apple is a major fruit crop in temperate zones. Its wild relatives, distributed
across temperate Eurasia and growing in diverse habitats, represent potentially useful …

Whole genome comparisons identified introgression from archaic to modern humans. Our
analysis of highly polymorphic human leukocyte antigen (HLA) class I, vital immune system …

It is widely documented that hybridisation occurs between many closely related species, but
the importance of introgression in adaptive evolution remains unclear, especially in animals …

Hybridization has a major role in evolution—from the introgression of important phenotypic
traits between species, to the creation of new species through hybrid speciation. Molecular …

In spite of the long‐term interest in the process of balancing selection, its frequency in
genomes and evolutionary significance remain unclear due to challenges related to its …

Supergenes are groups of tightly linked loci whose variation is inherited as a single
Mendelian locus and are a common genetic architecture for complex traits under balancing …

Balancing selection describes any form of natural selection, which results in the persistence
of multiple variants of a trait at intermediate frequencies within populations. By offering up a …

Species commonly exhibit alternative morphs, with individual fate being determined during
development by either genetic factors, environmental cues or a combination thereof. Ants …