Investigating the effects of diurnal and nocturnal pollinators on male and female reproductive success and on floral trait selection in Silene dioica use asterix (*) to get italics

Barbot Estelle, Dufaÿ Mathilde, Godé Cécile, De Cauwer IsabellePlease use the format "First name initials family name" as in "Marie S. Curie, Niels H. D. Bohr, Albert Einstein, John R. R. Tolkien, Donna T. Strickland"

2024

<p>Plant species with mixed pollination systems are under pollinator-mediated selection by both diurnal and nocturnal pollinator species. This could impact the strength and potentially direction of selection on floral traits, as different pollinators are not necessarily attracted by the same traits. In this study, we investigated how female and male reproductive successes of the dioecious species <em>Silene dioica</em> are affected by their floral traits, in relation to (i) the pollinator group the plants were exposed to (diurnal versus nocturnal pollination) and (ii) the level of emission of a volatile organic compound typically linked to pollinator attraction (natural versus enhanced phenylacetylaldehyd (PAA) emission) in a fully crossed design. Female plants in all treatments achieved full seed set, suggesting no differences in pollination efficiency between diurnal and nocturnal pollinator groups in <em>S. dioica</em>. Nocturnal pollination resulted in stronger selection on corolla width and flower number in males, but not in females. We further found that increased PAA emission modified selection on attractive traits both in plants exposed to diurnal and nocturnal pollinators, with a stronger effect in males. This stronger response of selection patterns to pollinator group and scent emission could suggest that males are more dependent on pollinator attraction than females in their reproductive success.</p>

https://doi.org/10.5281/zenodo.11487468You should fill this box only if you chose 'All or part of the results presented in this preprint are based on data'. URL must start with http:// or https://

https://zenodo.org/doi/10.5281/zenodo.11487700You should fill this box only if you chose 'Scripts were used to obtain or analyze the results'. URL must start with http:// or https://

sex-specific selection - selection gradients - phenylacetaldehyde - pollinator exclusion - generalist pollination - Hadena bicruris

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Evolutionary Ecology, Reproduction and Sex

Silvana Marten-Rodriguez suggested: Richard Reynolds rjriv@uab.edu, Francisco Balao suggested: Stefan Dötterl Stefan.Doetterl@sbg.ac.at, Francisco Balao suggested: Florian P Schiestl florian.schiestl@systbot.uzh.ch, Rocío Perez-Barrales suggested: Amy Parachnowistch amy.parachnowitsch@unb.ca

e.g. John Doe john@doe.com

No need for them to be recommenders of PCIEvolBiol. Please do not suggest reviewers for whom there might be a conflict of interest. Reviewers are not allowed to review preprints written by close colleagues (with whom they have published in the last four years, with whom they have received joint funding in the last four years, or with whom they are currently writing a manuscript, or submitting a grant proposal), or by family members, friends, or anyone for whom bias might affect the nature of the review - see the code of conduct

2024-06-05 15:52:46

Juan Arroyo