Projects per year
Abstract
Sexual selection can target many different types of traits. However, the relative influence of different sexually selected traits during evolutionary divergence is poorly understood. We used the field cricket Teleogryllus oceanicus to quantify and compare how five traits from each of three sexual signal modalities and components diverge among allopatric populations: male advertisement song, cuticular hydrocarbon (CHC) profiles and forewing morphology. Population divergence was unexpectedly consistent: we estimated the among-population (genetic) variance-covariance matrix, D, for all 15 traits, and Dmax explained nearly two-thirds of its variation. CHC and wing traits were most tightly integrated, whereas song varied more independently. We modeled the dependence of among-population trait divergence on genetic distance estimated from neutral markers to test for signatures of selection versus neutral divergence. For all three sexual trait types, phenotypic variation among populations was largely explained by a neutral model of divergence. Our findings illustrate how phenotypic integration across different types of sexual traits might impose constraints on the evolution of mating isolation and divergence via sexual selection.
Original language | English |
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Pages (from-to) | 1614-1626 |
Number of pages | 13 |
Journal | Evolution |
Volume | 71 |
Issue number | 6 |
Early online date | 28 Apr 2017 |
DOIs | |
Publication status | Published - 7 Jun 2017 |
Keywords
- Acoustic communication
- Cuticular hydrocarbons
- Eigendecomposition
- Geometric morphometrics
- Multimodal signaling
- Sexual selection
Fingerprint
Dive into the research topics of 'Sexual selection and population divergence II. Divergence in different sexual traits and signal modalities in field crickets (Teleogryllus oceanicus)'. Together they form a unique fingerprint.Projects
- 3 Finished
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Genomic Invasion: Genomic Invasion and the Role of Behaviour in Rapid Evolution.
Bailey, N. W. (PI)
1/10/14 → 4/12/20
Project: Standard
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Genomic Evolution in Real Time: Genomic evolution in real time: causes and consequences of an adaptive mutation in the wild
Bailey, N. W. (PI) & Ritchie, M. G. (CoI)
9/01/12 → 8/01/15
Project: Standard
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Sexual Selection of Field Crickets: Social Learning and Sexual selection in field crickets
Bailey, N. W. (PI)
1/04/10 → 31/03/13
Project: Fellowship
Datasets
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Data from: Sexual selection and population divergence II. divergence in different sexual traits and signal modalities in field crickets (Teleogryllus oceanicus)
Pascoal, S. C. M. (Creator), Mendrok, M. (Creator), Mitchell, C. (Creator), Wilson, A. (Creator), Hunt, J. (Creator) & Bailey, N. W. (Creator), Dryad, 15 Mar 2017
DOI: 10.5061/dryad.nm38g
Dataset
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Data from: Sexual selection and population divergence I: the influence of socially flexible cuticular hydrocarbon expression in male field crickets (Teleogryllus oceanicus)
Pascoal, S. C. M. (Creator), Mendrok, M. (Creator), Mitchell , C. (Creator), Wilson, A. (Creator), Hunt, J. (Creator) & Bailey, N. W. (Creator), Dryad, 7 Dec 2015
DOI: 10.5061/dryad.tb552
Dataset