ABSTRACT Traits that influence the interactions between males and females can evolve very rapidly through sexual selection1 or sexually antagonistic coevolution2. Rapid change in the

fertilization systems of independent populations can give rise to reproductive incompatibilities between populations3,4, and may contribute to speciation5. Here I provide evidence for

cryptic reproductive divergence among three sibling species of _Drosophila_ that leads to a form of postmating isolation. When a female mates with both a conspecific and a heterospecific

male, the conspecific sperm fertilize the vast majority of the eggs, regardless of the order of the matings. Heterospecific sperm fertilize fewer eggs after these double matings than after

found within species. These results indicate that females mediate sperm competition, and that second-male sperm precedence is not an automatic consequence of the mechanics of sperm storage.

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support SIMILAR CONTENT BEING VIEWED BY OTHERS GENOMICS OF A SEXUALLY SELECTED SPERM ORNAMENT AND FEMALE PREFERENCE IN _DROSOPHILA_ Article 22 November 2024 WHY PUT ALL YOUR EGGS IN ONE

BASKET? EVOLUTIONARY PERSPECTIVES ON THE ORIGINS OF MONOGENIC REPRODUCTION Article Open access 16 June 2023 DIVERGENT EVOLUTIONARY TRAJECTORIES SHAPE THE POSTMATING TRANSCRIPTIONAL PROFILES

OF CONSPECIFICALLY AND HETEROSPECIFICALLY MATED CACTOPHILIC _DROSOPHILA_ FEMALES Article Open access 19 August 2022 REFERENCES * Fisher, R. A. _The Genetical Theory of Natural Selection_

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(1993). Article  Google Scholar  Download references ACKNOWLEDGEMENTS I thank K. C. Price, P. Rooney, K. Kyle, C. Kim and K. Dyer for technical assistance; J. Coyne for inspiration and

help; and H. A. Orr, M. Turelli, M. Noor, N. Johnson and M. Wade for comments. This work was supported by an NSF predoctoral fellowship to the author, and by an NIH grant to J. Coyne. AUTHOR

INFORMATION AUTHORS AND AFFILIATIONS * Department of Ecology and Evolution, University of Chicago, 1101 East 57th Street, Chicago, 60637, Illinois, USA Catherine S. C. Price Authors *

Catherine S. C. Price View author publications You can also search for this author inPubMed Google Scholar CORRESPONDING AUTHOR Correspondence to Catherine S. C. Price. RIGHTS AND

PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Price, C. Conspecific sperm precedence in _Drosophila_. _Nature_ 388, 663–666 (1997). https://doi.org/10.1038/41753

Download citation * Received: 25 February 1997 * Accepted: 19 May 1997 * Issue Date: 14 August 1997 * DOI: https://doi.org/10.1038/41753 SHARE THIS ARTICLE Anyone you share the following

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