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dc.contributor.authorAla-Honkola, Outi
dc.contributor.authorManier, Mollie K.
dc.date.accessioned2016-03-21T10:33:05Z
dc.date.available2017-02-03T22:45:07Z
dc.date.issued2016
dc.identifier.citationAla-Honkola, O., & Manier, M. K. (2016). Multiple mechanisms of cryptic female choice act on intraspecific male variation in Drosophila simulans. <em>Behavioral Ecology and Sociobiology</em>, 70 (4), 519-532. <a href="http://dx.doi.org/10.1007/s00265-016-2069-3">doi:10.1007/s00265-016-2069-3</a>
dc.identifier.otherTUTKAID_69521
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/49134
dc.description.abstractPostcopulatory sexual selection can arise when females mate with multiple males and is usually mediated by an interaction between the sexes. Cryptic female choice (CFC) is one form of postcopulatory sexual selection that occurs when female morphology, physiology, or behavior generates a bias in fertilization success. However, its importance in nonrandom reproductive success is poorly resolved due to challenges distinguishing the roles of females and males in generating patterns of fertilization bias. Nevertheless, two CFC mechanisms have recently been documented and characterized in Drosophila simulans within the context of gametic isolation in competitive hybrid matings with Drosophila mauritiana: sperm ejection and nonrandom use of sperm storage organs for fertilization. Here, we explore if and how female D. simulans employ these two mechanisms of CFC in response to intraspecific male size variation. We used transgenic males expressing green (GFP) or red fluorescent protein (RFP) in sperm heads to document postcopulatory processes, in conjunction with a probabilistic analytical model. We unexpectedly found that differential reproductive success was also a function of male population (GFP or RFP), suggesting that females use different CFC mechanisms to select for different male traits. Moreover, concordance of selection at the precopulatory (as measured by mating latency) and postcopulatory stages depends on both the male trait and the CFC mechanism examined. Larger males were more successful both before and after mating, but we unexpectedly found that females also mated more quickly with males with GFP-labeled sperm, while fertilization bias favored RFP-labeled sperm.
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofseriesBehavioral Ecology and Sociobiology
dc.subject.otherprecopulatory sexual selection
dc.subject.otherpostcopulatory sexual selection
dc.subject.othersperm competition
dc.subject.otherfemale ejection
dc.subject.otherfemale preference
dc.subject.otherfertilization bias
dc.titleMultiple mechanisms of cryptic female choice act on intraspecific male variation in Drosophila simulans
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201603211902
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosThe Department of Biological and Environmental Scienceen
dc.contributor.oppiaineEkologia ja evoluutiobiologia
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2016-03-21T10:15:05Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange519-532
dc.relation.issn0340-5443
dc.relation.volume70
dc.type.versionacceptedVersion
dc.rights.copyright© Springer-Verlag Berlin Heidelberg 2016. This is a final draft version of an article whose final and definitive form has been published by Springer. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.relation.doi10.1007/s00265-016-2069-3


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