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dc.contributor.authorHall, Matthew D-
dc.contributor.authorBussiere, Luc-
dc.contributor.authorDemont, Marco-
dc.contributor.authorWard, Paul I-
dc.contributor.authorBrooks, Robert-
dc.description.abstractThe outcome of mate choice depends on complex interactions between males and females both before and after copulation. Although the competition between males for access to mates and premating choice by females are relatively well understood, the nature of interactions between cryptic female choice and male sperm competition within the female reproductive tract is less clear. Understanding the complexity of postcopulatory sexual selection requires an understanding of how anatomy, physiology and behaviour mediate sperm transfer and storage within multiply mated females. Here we use a newly developed molecular technique to directly quantify mixed sperm stores in multiple mating females of the black field cricket, Teleogryllus commodus. In this species, female postcopulatory choice is easily observed and manipulated as females delay the removal of the spermatophore in favour of preferred males. Using twice-mated females, we find that the proportion of sperm in the spermatheca attributed to the second male to mate with a female (S2) increases linearly with the time of spermatophore attachment. Moreover, we show that the insemination success of a male increases with its attractiveness and decreases with the size of the female. The effect of male attractiveness in this context suggests a previously unknown episode of mate choice in this species that reinforces the sexual selection imposed by premating choice and conflicts with the outcome of postmating male harassment. Our results provide some of the clearest evidence yet for how sperm transfer and displacement in multiply mated females can lead directly to cryptic female choice, and that three distinct periods of sexual selection operate in black field crickets.en_UK
dc.relationHall MD, Bussiere L, Demont M, Ward PI & Brooks R (2010) Competitive PCR reveals the complexity of postcopulatory sexual selection in Teleogryllus commodus, Molecular Ecology, 19 (3), pp. 610-619.-
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.-
dc.subjectcryptic choiceen_UK
dc.subjectDNA quantificationen_UK
dc.subjectfield cricketen_UK
dc.subjectinsemination successen_UK
dc.subjectmate choiceen_UK
dc.subjectsperm competitionen_UK
dc.subject.lcshDiptera - Evolution.-
dc.titleCompetitive PCR reveals the complexity of postcopulatory sexual selection in Teleogryllus commodusen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreasonThe publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.-
dc.citation.jtitleMolecular Ecology-
dc.type.statusPublisher version (final published refereed version)-
dc.contributor.affiliationUniversity of New South Wales-
dc.contributor.affiliationBiological and Environmental Sciences-
dc.contributor.affiliationUniversity of Munich-
dc.contributor.affiliationUniversity of Zurich-
dc.contributor.affiliationUniversity of New South Wales-
Appears in Collections:Biological and Environmental Sciences Journal Articles

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