Rapid evolution of reproductive isolation in the wild: evidence from introduced salmon
Hendry AP, Wenburg JK, Bentzen P, Volk EC, Quinn TP. 2000. Rapid evolution of reproductive isolation in the wild: evidence from introduced salmon. Science. 290(5491):516-518
Colonization of new environments should promote rapid speciation as a byproduct of adaption to divergent selective regimes. Although this process of ecological speciation is known to have occured over millenia or centuries, nothing is known abou thow quickly reproductive isolation actually evolves when new environments are first colonized. Using DNA microsatellites, population-specific natural tags, and phenotypic variation, we tested for reproductive isolation between two adjacent salmon populations of a common ancestry that colonized divergent reproductive environments (a river and a lake beach). We found evidence for the evolution of reproductive isolation after fewer than 13 generations.
- Type
- Journal Article
- Authors
- Hendry, A.; Wenburg, J.; Bentzen, P.; Volk, E.; Quinn, T.
- Units
- BELA , CAKR , GLBA , KLGO , SITK , WRST
- Keywords
- Alaska, Anadromous, Fish, Oncorhynchus nerka, Reproductive isolation, Riverine, Sockeye Salmon, Speciation