Sex-specific selection patterns in a ...
Document type :
Article dans une revue scientifique: Article original
DOI :
PMID :
Title :
Sex-specific selection patterns in a dioecious insectpollinated plant
Author(s) :
Barbot, Estelle [Auteur correspondant]
Institut des Sciences de l'Evolution de Montpellier [UMR ISEM]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Dufaÿ, Mathilde [Auteur]
Centre d’Ecologie Fonctionnelle et Evolutive [CEFE]
De Cauwer, Isabelle [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Institut des Sciences de l'Evolution de Montpellier [UMR ISEM]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Dufaÿ, Mathilde [Auteur]
Centre d’Ecologie Fonctionnelle et Evolutive [CEFE]
De Cauwer, Isabelle [Auteur]

Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Journal title :
Evolution - International Journal of Organic Evolution
Pages :
1578-1590
Publisher :
Wiley
Publication date :
2023
ISSN :
0014-3820
English keyword(s) :
Floral traits
Bateman gradient
Pollinator-mediated selection
Fertility selection
Mating success
Paternity analyses
Bateman gradient
Pollinator-mediated selection
Fertility selection
Mating success
Paternity analyses
HAL domain(s) :
Sciences du Vivant [q-bio]
English abstract : [en]
Competition for mate acquisition is the hallmark of any sexual organism. In insect-pollinated plants, competition to attract pollinators is expected to result in pollinator-mediated selection on attractive floral traits. ...
Show more >Competition for mate acquisition is the hallmark of any sexual organism. In insect-pollinated plants, competition to attract pollinators is expected to result in pollinator-mediated selection on attractive floral traits. This could overlap with sexual selection if the number of mating partners increases with pollinator attraction, resulting in an improved reproductive success. In this study, we measured a set of floral traits and estimated individual fitness in male and female Silene dioica in an experimental population. Results align with the predictions of Bateman’s principles, in the absence of pollen limitation. In females, natural selection acted on traits that are typically linked with fertility (number of flowers and number of gametes), and selection strength was similar in open- and hand-pollinated females, suggesting a limited role of pollinator-mediated selection. In males, flowering duration and corolla width were positively associated with both reproductive success and number of mates, suggesting that sexual selection has played a role in the evolution of these traits. The use of Bateman’s metrics further confirmed stronger sexual selection in males than in females. Taken together, our results shed light on the occurrence of sex-specific patterns of selection in an insect-pollinated plant population.Show less >
Show more >Competition for mate acquisition is the hallmark of any sexual organism. In insect-pollinated plants, competition to attract pollinators is expected to result in pollinator-mediated selection on attractive floral traits. This could overlap with sexual selection if the number of mating partners increases with pollinator attraction, resulting in an improved reproductive success. In this study, we measured a set of floral traits and estimated individual fitness in male and female Silene dioica in an experimental population. Results align with the predictions of Bateman’s principles, in the absence of pollen limitation. In females, natural selection acted on traits that are typically linked with fertility (number of flowers and number of gametes), and selection strength was similar in open- and hand-pollinated females, suggesting a limited role of pollinator-mediated selection. In males, flowering duration and corolla width were positively associated with both reproductive success and number of mates, suggesting that sexual selection has played a role in the evolution of these traits. The use of Bateman’s metrics further confirmed stronger sexual selection in males than in females. Taken together, our results shed light on the occurrence of sex-specific patterns of selection in an insect-pollinated plant population.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :
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