Chromosome Inversions, Local Adaptation and Speciation
The University of Texas at Austin · Institut de Biologia Evolutiva · +1 more institution
Abstract
We study the evolution of inversions that capture locally adapted alleles when two populations are exchanging migrants or hybridizing. By suppressing recombination between the loci, a new inversion can spread. Neither drift nor coadaptation between the alleles (epistasis) is needed, so this local adaptation mechanism may apply to a broader range of genetic and demographic situations than alternative hypotheses that have been widely discussed. The mechanism can explain many features observed in inversion systems. It will drive an inversion to high frequency if there is no countervailing force, which could explain fixed differences observed between populations and species. An inversion can be stabilized at an…
Citation impact
- FWCI
- 9.90
- Percentile
- 100%
- References
- 117
Authors
2Topics & keywords
- Biology
- Epistasis
- Chromosomal inversion
- Genetics
- Inversion (geology)
- Evolutionary biology
- Allele
- Local adaptation