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3 results for “postmating responses”
Data from: Quantitative proteomics reveals rapid divergence in the postmating response of female reproductive tracts among sibling species
<p><span><span><span><span><span><span><span><span><span><span><span>Fertility depends, in part, on interactions between male and female reproductive proteins inside the female reproductive tract (FRT) that mediate postmating changes in female behavior, morphology, and physiology. Coevolution between interacting proteins within species may drive reproductive incompatibilities between species, yet the mechanisms underlying postmating-prezygotic isolating barriers remain poorly resolved. Here, we used quantitative proteomics in sibling <i>Drosophila</i> species to investigate the molecular composition of the FRT environment and its role in mediating species-specific postmating responses. We found that (1) FRT proteomes in <i>D. simulans</i> and<i> D. mauritiana</i> virgin females express unique combinations of secreted proteins and are enriched for distinct functional categories, (2) mating induces substantial changes to the FRT proteome in <i>D. mauritiana</i> but not in <i>D. simulans</i>, and (3) the <i>D. simulans </i>FRT proteome exhibits limited postmating changes irrespective of whether females mate with conspecific or heterospecific males, suggesting an active female role in mediating reproductive interactions. Comparisons with similar data in the closely related outgroup species <i>D. melanogaster </i>suggest that divergence is concentrated on the <i>D. simulans </i>lineage. Our study suggests that divergence in the FRT extracellular environment and postmating response contribute to previously described patterns of postmating-prezygotic isolation and the maintenance of species boundaries.</span></span></span></span></span></span></span></span></span></span></span></p>
Data from: Quantitative proteomics reveals rapid divergence in the postmating response of female reproductive tracts among sibling species
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Data from: Male spiders reduce pre- and postmating sexual investment in response to sperm competition risk
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