Male-specific genotype by environment interactions influence viability selection acting on a sexually selected inversion system in the seaweed fly, Coelopa frigida.
Evolution
; 67(1): 295-302, 2013 Jan.
Article
in En
| MEDLINE
| ID: mdl-23289580
ABSTRACT
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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Selection, Genetic
/
Ecosystem
/
Diptera
/
Mating Preference, Animal
/
Gene-Environment Interaction
/
Genotype
/
Chromosome Inversion
Limits:
Animals
Language:
En
Journal:
Evolution
Year:
2013
Document type:
Article
Affiliation country:
United kingdom