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The more pieces, the better the puzzle: sperm concentration increases gametic compatibility

Sherman, Craig D. H., Ab Rahim, Emi S., Olsson, Mats and Careau, Vincent 2015, The more pieces, the better the puzzle: sperm concentration increases gametic compatibility, Ecology and evolution, vol. 5, no. 19, pp. 4354-4364, doi: 10.1002/ece3.1684.

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Title The more pieces, the better the puzzle: sperm concentration increases gametic compatibility
Author(s) Sherman, Craig D. H.ORCID iD for Sherman, Craig D. H. orcid.org/0000-0003-2099-0462
Ab Rahim, Emi S.
Olsson, Mats
Careau, Vincent
Journal name Ecology and evolution
Volume number 5
Issue number 19
Start page 4354
End page 4364
Total pages 11
Publisher Wiley
Place of publication London, Eng.
Publication date 2015-10
ISSN 2045-7758
Keyword(s) Mytilus
Cryptic female choice
Genotype by environment
Good genes
Polyandry
Quantitative genetics
Sperm competition
Summary The genetic benefits individuals receive from mate choice have been the focus of numerous studies, with several showing support for both intrinsic genetic benefits and compatibility effects on fertilization success and offspring viability. However, the robustness of these effects have rarely been tested across an ecologically relevant environmental gradient. In particular, sperm environment is a crucial factor determining fertilization success in many species, especially those with external fertilization. Here, we test the importance of sperm environment in mediating compatibility-based selection on fertilization using a factorial breeding design. We detected a significant intrinsic male effect on fertilization success at only one of four sperm concentrations. Compatibility effects were significant at the two highest sperm concentrations and, interestingly, the magnitude of the compatibility effect consistently increased with sperm concentration. This suggests that females are able to modify the probability of sperm-egg fusion as the amount of sperm available increases.
Language eng
DOI 10.1002/ece3.1684
Field of Research 060201 Behavioural Ecology
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30079934

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.