MALE-SPECIFIC GENOTYPE BY ENVIRONMENT INTERACTIONS INFLUENCE VIABILITY SELECTION ACTING ON A SEXUALLY SELECTED INVERSION SYSTEM IN THE SEAWEED FLY, COELOPA FRIGIDA
Article first published online: 27 AUG 2012
© 2012 The Author(s). Evolution© 2012 The Society for the Study of Evolution.
Volume 67, Issue 1, pages 295–302, January 2013
How to Cite
Edward, D. A. and Gilburn, A. S. (2013), MALE-SPECIFIC GENOTYPE BY ENVIRONMENT INTERACTIONS INFLUENCE VIABILITY SELECTION ACTING ON A SEXUALLY SELECTED INVERSION SYSTEM IN THE SEAWEED FLY, COELOPA FRIGIDA. Evolution, 67: 295–302. doi: 10.1111/j.1558-5646.2012.01754.x
- Issue published online: 4 JAN 2013
- Article first published online: 27 AUG 2012
- Accepted manuscript online: 1 AUG 2012 01:02PM EST
- Received November 24, 2011, Accepted June 29, 2012, Data Archived: Dryad doi:10.5061/dryad.st217
- natural selection;
- sexual selection;
- viability selection
In the seaweed fly, Coelopa frigida, a large chromosomal inversion system is affected by sexual selection and viability selection. However, our understanding of the interaction between these two selective forces is currently limited as research has focused upon a limited range of environments. We allowed C. frigida larvae to develop in two different algae, Fucus and Laminaria, and then measured viability and body size for each inversion genotype. Significant male-specific genotype-by-environment interactions influenced viability and body size. For males developing in Laminaria, the direction of viability selection acts similarly on the inversion system as the direction of sexual selection. In contrast, for males developing in Fucus, viability selection opposes sexual selection. These results demonstrate that through considering viability selection in different environments, the costs and benefits associated with sexual selection can be found to vary.