Transgenerational effects of sexual interactions and sexual conflict: Non-sires boost the fecundity of females in the following generation

Paco Garcia, D.K. Dowling

    Research output: Contribution to journalArticle

    15 Citations (Scopus)

    Abstract

    © 2015 The Author(s) Published by the Royal Society. All rights reserved. The consequences of sexual interactions extend beyond the simple production of offspring. These interactions typically entail direct effects on female fitness, but may also impact the life histories of later generations. Evaluating the cross-generational effects of sexual interactions provides insights into the dynamics of sexual selection and conflict. Such studies can elucidate whether offspring fitness optima diverge across sexes upon heightened levels of sexual interaction among parents.Here,we found that, inDrosophilamelanogaster, components of reproductive success in females, but not males, were contingent on the nature of sexual interactions experienced by their mothers. In particular, maternal sexual interactions with non-sires enhanced female fecundity in the following generation. This highlights the importance of non-sire influences of sexual interactions on the expression of offspring life histories.
    Original languageEnglish
    Article number20150067
    Number of pages6
    JournalBiology Letters
    Volume11
    Issue number3
    DOIs
    Publication statusPublished - 18 Mar 2015

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