Divergent selection and the evolution of signal traits and mating preferences

Rundle, Howard D., Chenoweth, Stephen F., Doughty, Paul and Blows, Mark W. (2005) Divergent selection and the evolution of signal traits and mating preferences. Plos Biology, 3 11: 1988-1995. doi:10.1371/journal.pbio.0030368

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Author Rundle, Howard D.
Chenoweth, Stephen F.
Doughty, Paul
Blows, Mark W.
Title Divergent selection and the evolution of signal traits and mating preferences
Journal name Plos Biology   Check publisher's open access policy
ISSN 1544-9173
Publication date 2005-11-01
Year available 2005
Sub-type Article (original research)
DOI 10.1371/journal.pbio.0030368
Open Access Status DOI
Volume 3
Issue 11
Start page 1988
End page 1995
Total pages 8
Editor Nil
Place of publication San Francisco
Publisher Public Library of Science
Language eng
Subject C1
270700 Ecology and Evolution
780105 Biological sciences
Abstract Mating preferences are common in natural populations, and their divergence among populations is considered an important source of reproductive isolation during speciation. Although mechanisms for the divergence of mating preferences have received substantial theoretical treatment, complementary experimental tests are lacking. We conducted a laboratory evolution experiment, using the fruit fly Drosophila serrata, to explore the role of divergent selection between environments in the evolution of female mating preferences. Replicate populations of D. serrata were derived from a common ancestor and propagated in one of three resource environments: two novel environments and the ancestral laboratory environment. Adaptation to both novel environments involved changes in cuticular hydrocarbons, traits that predict mating success in these populations. Furthermore, female mating preferences for these cuticular hydrocarbons also diverged among populations. A component of this divergence occurred among treatment environments, accounting for at least 17.4% of the among- population divergence in linear mating preferences and 17.2% of the among-population divergence in nonlinear mating preferences. The divergence of mating preferences in correlation with environment is consistent with the classic by- product model of speciation in which premating isolation evolves as a side effect of divergent selection adapting populations to their different environments.
Keyword Biochemistry & Molecular Biology
Cactophilic Drosophila-mojavensis
Sexually Selected Traits
Reproductive Isolation
Mate Recognition
Cuticular Hydrocarbons
Parallel Speciation
Premating Isolation
Q-Index Code C1
Institutional Status UQ
Additional Notes Originally published as:Divergent Selection and the Evolution of Signal Traits and Mating Preferences Rundle HD, Chenoweth SF, Doughty P, Blows MW Experimentally manipulating the resource environment of Drosophila serrata reveals that mating preferences can evolve, at least in part, as a result of environmentally-based divergent natural selection. Synopsis: New Environments Set the Stage for Changing Tastes in Mates doi:10.1371/journal.pbio.0030368 Copyright: © 2005 Rundle et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Created: Wed, 15 Aug 2007, 17:44:11 EST