Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis

Autores
Farias, Nahuel Emiliano; Ribeiro, Pablo Damián; Lancia, Juan Pablo; Luppi, Tomas Atilio
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Explanations for the evolution of male-biased size dimorphism (MBSSD) traditionally focus on male competition and female choice, overlooking the alternative that larger males may be better at coercing females into mating. While displaying considerable diversity, 'true crabs' (Eubrachyura) share common traits that theoretically should promote the evolution of coercive mating strategies. Despite this, there is a conspicuous lack of studies investigating this aspect. We investigated several reproductive and life history traits of Panopeus meridionalis (a mud crab that exhibits extreme MBSSD) to assess whether the specific set of characters is consistent with the hypothesis of sexual antagonistic coevolution at place. We found that the high MBSSD is likely driven by sexual conflict, where males use their size to coerce females into mating. Experimental matings involved male aggression towards females. Females first resist male attempts, but are ultimately subdued. Mating is relatively brief and there is no evident pre or post copulatory guarding. The female reproductive tract lacks complex structures for long-term sperm storage or manipulation, and given the small size of seminal receptacles related to male sperm load capacity, it is unlikely for females to store sperm from multiple partners. All considered, the evidence suggests that females have limited control over paternity and support the existence of an intrinsically coercive mating system in P. meridionalis. We propose this species as an interesting model for studying the resolution of sexual conflict through antagonistic coevolution and selection in the highly diverse group of true crabs.
Fil: Farias, Nahuel Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Ribeiro, Pablo Damián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Lancia, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Luppi, Tomas Atilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Materia
BRACHYURA
MATING SYSTEM
SALT MARSH
SEXUAL SELECTION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/242507
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalisFarias, Nahuel EmilianoRibeiro, Pablo DamiánLancia, Juan PabloLuppi, Tomas AtilioBRACHYURAMATING SYSTEMSALT MARSHSEXUAL SELECTIONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Explanations for the evolution of male-biased size dimorphism (MBSSD) traditionally focus on male competition and female choice, overlooking the alternative that larger males may be better at coercing females into mating. While displaying considerable diversity, 'true crabs' (Eubrachyura) share common traits that theoretically should promote the evolution of coercive mating strategies. Despite this, there is a conspicuous lack of studies investigating this aspect. We investigated several reproductive and life history traits of Panopeus meridionalis (a mud crab that exhibits extreme MBSSD) to assess whether the specific set of characters is consistent with the hypothesis of sexual antagonistic coevolution at place. We found that the high MBSSD is likely driven by sexual conflict, where males use their size to coerce females into mating. Experimental matings involved male aggression towards females. Females first resist male attempts, but are ultimately subdued. Mating is relatively brief and there is no evident pre or post copulatory guarding. The female reproductive tract lacks complex structures for long-term sperm storage or manipulation, and given the small size of seminal receptacles related to male sperm load capacity, it is unlikely for females to store sperm from multiple partners. All considered, the evidence suggests that females have limited control over paternity and support the existence of an intrinsically coercive mating system in P. meridionalis. We propose this species as an interesting model for studying the resolution of sexual conflict through antagonistic coevolution and selection in the highly diverse group of true crabs.Fil: Farias, Nahuel Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Ribeiro, Pablo Damián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Lancia, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Luppi, Tomas Atilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaCold Spring Harbor Laboratory Press2024-04-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/242507Farias, Nahuel Emiliano; Ribeiro, Pablo Damián; Lancia, Juan Pablo; Luppi, Tomas Atilio; Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis; Cold Spring Harbor Laboratory Press; bioRxiv; 5-4-2024; 1-312692-8205CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.biorxiv.org/content/10.1101/2024.04.03.588019v1info:eu-repo/semantics/altIdentifier/doi/10.1101/2024.04.03.588019info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:35:23Zoai:ri.conicet.gov.ar:11336/242507instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:35:23.971CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis
title Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis
spellingShingle Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis
Farias, Nahuel Emiliano
BRACHYURA
MATING SYSTEM
SALT MARSH
SEXUAL SELECTION
title_short Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis
title_full Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis
title_fullStr Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis
title_full_unstemmed Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis
title_sort Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis
dc.creator.none.fl_str_mv Farias, Nahuel Emiliano
Ribeiro, Pablo Damián
Lancia, Juan Pablo
Luppi, Tomas Atilio
author Farias, Nahuel Emiliano
author_facet Farias, Nahuel Emiliano
Ribeiro, Pablo Damián
Lancia, Juan Pablo
Luppi, Tomas Atilio
author_role author
author2 Ribeiro, Pablo Damián
Lancia, Juan Pablo
Luppi, Tomas Atilio
author2_role author
author
author
dc.subject.none.fl_str_mv BRACHYURA
MATING SYSTEM
SALT MARSH
SEXUAL SELECTION
topic BRACHYURA
MATING SYSTEM
SALT MARSH
SEXUAL SELECTION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Explanations for the evolution of male-biased size dimorphism (MBSSD) traditionally focus on male competition and female choice, overlooking the alternative that larger males may be better at coercing females into mating. While displaying considerable diversity, 'true crabs' (Eubrachyura) share common traits that theoretically should promote the evolution of coercive mating strategies. Despite this, there is a conspicuous lack of studies investigating this aspect. We investigated several reproductive and life history traits of Panopeus meridionalis (a mud crab that exhibits extreme MBSSD) to assess whether the specific set of characters is consistent with the hypothesis of sexual antagonistic coevolution at place. We found that the high MBSSD is likely driven by sexual conflict, where males use their size to coerce females into mating. Experimental matings involved male aggression towards females. Females first resist male attempts, but are ultimately subdued. Mating is relatively brief and there is no evident pre or post copulatory guarding. The female reproductive tract lacks complex structures for long-term sperm storage or manipulation, and given the small size of seminal receptacles related to male sperm load capacity, it is unlikely for females to store sperm from multiple partners. All considered, the evidence suggests that females have limited control over paternity and support the existence of an intrinsically coercive mating system in P. meridionalis. We propose this species as an interesting model for studying the resolution of sexual conflict through antagonistic coevolution and selection in the highly diverse group of true crabs.
Fil: Farias, Nahuel Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Ribeiro, Pablo Damián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Lancia, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Luppi, Tomas Atilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
description Explanations for the evolution of male-biased size dimorphism (MBSSD) traditionally focus on male competition and female choice, overlooking the alternative that larger males may be better at coercing females into mating. While displaying considerable diversity, 'true crabs' (Eubrachyura) share common traits that theoretically should promote the evolution of coercive mating strategies. Despite this, there is a conspicuous lack of studies investigating this aspect. We investigated several reproductive and life history traits of Panopeus meridionalis (a mud crab that exhibits extreme MBSSD) to assess whether the specific set of characters is consistent with the hypothesis of sexual antagonistic coevolution at place. We found that the high MBSSD is likely driven by sexual conflict, where males use their size to coerce females into mating. Experimental matings involved male aggression towards females. Females first resist male attempts, but are ultimately subdued. Mating is relatively brief and there is no evident pre or post copulatory guarding. The female reproductive tract lacks complex structures for long-term sperm storage or manipulation, and given the small size of seminal receptacles related to male sperm load capacity, it is unlikely for females to store sperm from multiple partners. All considered, the evidence suggests that females have limited control over paternity and support the existence of an intrinsically coercive mating system in P. meridionalis. We propose this species as an interesting model for studying the resolution of sexual conflict through antagonistic coevolution and selection in the highly diverse group of true crabs.
publishDate 2024
dc.date.none.fl_str_mv 2024-04-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/242507
Farias, Nahuel Emiliano; Ribeiro, Pablo Damián; Lancia, Juan Pablo; Luppi, Tomas Atilio; Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis; Cold Spring Harbor Laboratory Press; bioRxiv; 5-4-2024; 1-31
2692-8205
CONICET Digital
CONICET
url http://hdl.handle.net/11336/242507
identifier_str_mv Farias, Nahuel Emiliano; Ribeiro, Pablo Damián; Lancia, Juan Pablo; Luppi, Tomas Atilio; Opposites attract: Multiple evidence of sexual antagonistic coevolution driving extreme male-biased sexual size dimorphism in Panopeus meridionalis; Cold Spring Harbor Laboratory Press; bioRxiv; 5-4-2024; 1-31
2692-8205
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.biorxiv.org/content/10.1101/2024.04.03.588019v1
info:eu-repo/semantics/altIdentifier/doi/10.1101/2024.04.03.588019
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Cold Spring Harbor Laboratory Press
publisher.none.fl_str_mv Cold Spring Harbor Laboratory Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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