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Divergence in sex peptide-mediated female post-mating responses in Drosophila melanogaster
Transfer and receipt of seminal fluid proteins crucially affect reproductive processes in animals. Evolution in these male ejaculatory proteins is explained with post-mating sexual selection, but we lack a good understanding of the evolution of female post-mating responses (PMRs) to these proteins....
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6158525/ https://www.ncbi.nlm.nih.gov/pubmed/30209231 http://dx.doi.org/10.1098/rspb.2018.1563 |
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author | Wensing, Kristina U. Fricke, Claudia |
author_facet | Wensing, Kristina U. Fricke, Claudia |
author_sort | Wensing, Kristina U. |
collection | PubMed |
description | Transfer and receipt of seminal fluid proteins crucially affect reproductive processes in animals. Evolution in these male ejaculatory proteins is explained with post-mating sexual selection, but we lack a good understanding of the evolution of female post-mating responses (PMRs) to these proteins. Some of these proteins are expected to mediate sexually antagonistic coevolution generating the expectation that females evolve resistance. One candidate in Drosophila melanogaster is the sex peptide (SP) which confers cost of mating in females. In this paper, we compared female SP-induced PMRs across three D. melanogaster wild-type populations after mating with SP-lacking versus control males including fitness measures. Surprisingly, we did not find any evidence for SP-mediated fitness costs in any of the populations. However, female lifetime reproductive success and lifespan were differently affected by SP receipt indicating that female PMRs diverged among populations. Injection of synthetic SP into virgin females further supported these findings and suggests that females from different populations require different amounts of SP to effectively initiate PMRs. Molecular analyses of the SP receptor suggest that genetic differences might explain the observed phenotypical divergence. We discuss the evolutionary processes that might have caused this divergence in female PMRs. |
format | Online Article Text |
id | pubmed-6158525 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-61585252018-09-28 Divergence in sex peptide-mediated female post-mating responses in Drosophila melanogaster Wensing, Kristina U. Fricke, Claudia Proc Biol Sci Evolution Transfer and receipt of seminal fluid proteins crucially affect reproductive processes in animals. Evolution in these male ejaculatory proteins is explained with post-mating sexual selection, but we lack a good understanding of the evolution of female post-mating responses (PMRs) to these proteins. Some of these proteins are expected to mediate sexually antagonistic coevolution generating the expectation that females evolve resistance. One candidate in Drosophila melanogaster is the sex peptide (SP) which confers cost of mating in females. In this paper, we compared female SP-induced PMRs across three D. melanogaster wild-type populations after mating with SP-lacking versus control males including fitness measures. Surprisingly, we did not find any evidence for SP-mediated fitness costs in any of the populations. However, female lifetime reproductive success and lifespan were differently affected by SP receipt indicating that female PMRs diverged among populations. Injection of synthetic SP into virgin females further supported these findings and suggests that females from different populations require different amounts of SP to effectively initiate PMRs. Molecular analyses of the SP receptor suggest that genetic differences might explain the observed phenotypical divergence. We discuss the evolutionary processes that might have caused this divergence in female PMRs. The Royal Society 2018-09-12 2018-09-12 /pmc/articles/PMC6158525/ /pubmed/30209231 http://dx.doi.org/10.1098/rspb.2018.1563 Text en © 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Evolution Wensing, Kristina U. Fricke, Claudia Divergence in sex peptide-mediated female post-mating responses in Drosophila melanogaster |
title | Divergence in sex peptide-mediated female post-mating responses in Drosophila melanogaster |
title_full | Divergence in sex peptide-mediated female post-mating responses in Drosophila melanogaster |
title_fullStr | Divergence in sex peptide-mediated female post-mating responses in Drosophila melanogaster |
title_full_unstemmed | Divergence in sex peptide-mediated female post-mating responses in Drosophila melanogaster |
title_short | Divergence in sex peptide-mediated female post-mating responses in Drosophila melanogaster |
title_sort | divergence in sex peptide-mediated female post-mating responses in drosophila melanogaster |
topic | Evolution |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6158525/ https://www.ncbi.nlm.nih.gov/pubmed/30209231 http://dx.doi.org/10.1098/rspb.2018.1563 |
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