Abstract
Heterozygote disadvantage is potentially a potent driver of population genetic divergence. Also referred to as underdominance, this phenomena describes a situation where a genetic heterozygote has a lower overall fitness than either homozygote. Attention so far has mostly been given to underdominance within a single population and the maintenance of genetic differences between two populations exchanging migrants. Here we explore the dynamics of an underdominant system in a network of multiple discrete, yet interconnected, populations. Stability of genetic differences in response to increases in migration in various topological networks is assessed. The network topology can have a dominant and occasionally non-intuitive influence on the genetic stability of the system.
| Original language | English |
|---|---|
| Pages (from-to) | 156-163 |
| Number of pages | 8 |
| Journal | Journal of Theoretical Biology |
| Volume | 390 |
| DOIs | |
| Publication status | Published - 7 Feb 2016 |
Bibliographical note
Funding Information:Funding: This work was supported by a grant to ÁJL from the Charles H. and Margaret B. Edmondson Research Fund and a grant to FAR (12ADVC-51343) from the Victoria S. and Bradley L. Geist Foundation administered by the Hawai׳i Community Foundation Medical Research Program , 12ADVC-51343 .
Publisher Copyright:
© 2015 Elsevier Ltd.
Other keywords
- Coordination game
- Dynamical system
- Network topology
- Population genetics
- Underdominance