Sexual conflict and the maintenance of multivariate genetic variation

Hall, Matthew D., Lailvaux, Simon P., Blows, Mark W. and Brooks, Robert C. (2010) Sexual conflict and the maintenance of multivariate genetic variation. Evolution, 64 6: 1697-1703. doi:10.1111/j.1558-5646.2009.00932.x

Author Hall, Matthew D.
Lailvaux, Simon P.
Blows, Mark W.
Brooks, Robert C.
Title Sexual conflict and the maintenance of multivariate genetic variation
Journal name Evolution   Check publisher's open access policy
ISSN 0014-3820
Publication date 2010-06
Year available 2009
Sub-type Article (original research)
DOI 10.1111/j.1558-5646.2009.00932.x
Volume 64
Issue 6
Start page 1697
End page 1703
Total pages 7
Editor Nicholas Barton
Mark D. Rausher
Jennifer Mahar
Place of publication Lancaster, PA., U.S.A.
Publisher Society for the Study of Evolution
Collection year 2011
Language eng
Subject C1
970106 Expanding Knowledge in the Biological Sciences
0604 Genetics
Formatted abstract
Mate choice should erode additive genetic variation in sexual displays, yet these traits often harbor substantial genetic variation. Nevertheless, recent developments in quantitative genetics have suggested that multivariate genetic variation in the combinations of traits under selection may still be depleted. Accordingly, the erosion and maintenance of variation may only be detectable by studying whole suites of traits. One potential process favoring the maintenance of genetic variance in multiple trait combinations is the modification of sexual selection via sexually antagonistic interactions between males and females. Here we consider how interlocus sexual conflict can shape the genetic architecture of male sexual traits in the cricket, Teleogryllus commodus. In this species, the ability of each sex to manipulate insemination success significantly alters the selection acting on male courtship call properties. Using a quantitative genetic breeding design we estimated the additive genetic variation in these traits and then predicted the change in variation due to previously documented patterns of sexual selection. Our results indicate that female choice should indeed deplete multivariate genetic variance, but that sexual conflict over insemination success may oppose this loss of variance. We suggest that changes in the direction of selection due to sexually antagonistic interactions will be an important and potentially widespread factor in maintaining multivariate genetic variation.
© 2010 The Author(s). Journal compilation © 2010 The Society for the Study of Evolution.
Keyword Crickets
Interlocus conflict
Lek paradox
Quantitative genetics
Sexual selection
Evolutionary quantitative genetics
Female mate choice
Lek Paradox
Fluctuating selection
Field cricket
Male competition
Courtship song
Red deer
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article first published online: 28 DEC 2009

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Biological Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 19 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 19 times in Scopus Article | Citations
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Created: Sun, 20 Jun 2010, 00:06:33 EST