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Abbott, Jessica K.
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Abbott, J. K., Bedhomme, S. & Chippindale, A. K. (2010). Sexual conflict in wing size and shape in Drosophila melanogaster. Journal of Evolutionary Biology, 23(9), 1989-1997
Open this publication in new window or tab >>Sexual conflict in wing size and shape in Drosophila melanogaster
2010 (English)In: Journal of Evolutionary Biology, ISSN 1010-061X, E-ISSN 1420-9101, Vol. 23, no 9, p. 1989-1997Article in journal (Refereed) Published
Abstract [en]

Intralocus sexual conflict occurs when opposing selection pressures operate on loci expressed in both sexes, constraining the evolution of sexual dimorphism and displacing one or both sexes from their optimum. We eliminated intralocus conflict in Drosophila melanogaster by limiting transmission of all major chromosomes to males, thereby allowing them to win the intersexual tug-of-war. Here, we show that this male-limited (ML) evolution treatment led to the evolution (in both sexes) of masculinized wing morphology, body size, growth rate, wing loading, and allometry. In addition to more male-like size and shape, ML evolution resulted in an increase in developmental stability for males. However, females expressing ML chromosomes were less developmentally stable, suggesting that being ontogenetically more male-like was disruptive to development. We suggest that sexual selection over size and shape of the imago may therefore explain the persistence of substantial genetic variation in these characters and the ontogenetic processes underlying them.

Keywords
Drosophila melanogaster, experimental evolution, geometric morphometrics, intralocus sexual conflict, ontogenetic sexual conflict, sexual size dimorphism
National Category
Microbiology
Research subject
Biology with specialization in Evolutionary Organismal Biology
Identifiers
urn:nbn:se:uu:diva-129950 (URN)10.1111/j.1420-9101.2010.02064.x (DOI)20695965 (PubMedID)
Available from: 2010-08-26 Created: 2010-08-26 Last updated: 2017-12-12Bibliographically approved
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