Sperm competition and reproductive mode influence sperm dimensions and structure among snakes

Autores
Tourmente, Maximiliano; Gomendio, Montserrat; Roldan, Eduardo Danilo; Giojalas, Laura Cecilia; Chiaraviglio, Margarita
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The role of sperm competition in increasing sperm length is a controversial issue, because findings from different taxa seem contradictory. We present a comparative study of 25 species of snakes with different levels of sperm competition to test whether it influences the size and structure of different sperm components. We show that, as levels of sperm competition increase, so does sperm length, and that this elongation is largely explained by increases in midpiece length. In snakes, the midpiece is comparatively large and it contains structures, which in other taxa are present in the rest of the flagellum, suggesting that it may integrate some of its functions. Thus, increases in sperm midpiece size would result in more energy as well as greater propulsion force. Sperm competition also increases the area occupied by the fibrous sheath and outer dense fibers within the sperm midpiece, revealing for the first time an effect upon structural elements within the sperm. Finally, differences in male-male encounter rates between oviparous and viviparous species seem to lead to differences in levels of sperm competition. We conclude that the influence of sperm competition upon different sperm components varies between taxa, because their structure and function is different.
Fil: Tourmente, Maximiliano. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Diversidad Biológica y Ecologica; Argentina
Fil: Gomendio, Montserrat. Consejo Superior de Investigaciones Científicas; España. Museo Nacional de Ciencias Naturales ; España
Fil: Roldan, Eduardo Danilo. Museo Nacional de Ciencias Naturales ; España. Consejo Superior de Investigaciones Científicas; España
Fil: Giojalas, Laura Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Chiaraviglio, Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Materia
MATING SYSTEMS
REPRODUCTIVE STRATEGIES
SELECTION-SEXUAL
SNAKES
SPERM COMPETITION
SPERM STRUCTURE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/59871
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/59871
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Sperm competition and reproductive mode influence sperm dimensions and structure among snakesTourmente, MaximilianoGomendio, MontserratRoldan, Eduardo DaniloGiojalas, Laura CeciliaChiaraviglio, MargaritaMATING SYSTEMSREPRODUCTIVE STRATEGIESSELECTION-SEXUALSNAKESSPERM COMPETITIONSPERM STRUCTUREhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The role of sperm competition in increasing sperm length is a controversial issue, because findings from different taxa seem contradictory. We present a comparative study of 25 species of snakes with different levels of sperm competition to test whether it influences the size and structure of different sperm components. We show that, as levels of sperm competition increase, so does sperm length, and that this elongation is largely explained by increases in midpiece length. In snakes, the midpiece is comparatively large and it contains structures, which in other taxa are present in the rest of the flagellum, suggesting that it may integrate some of its functions. Thus, increases in sperm midpiece size would result in more energy as well as greater propulsion force. Sperm competition also increases the area occupied by the fibrous sheath and outer dense fibers within the sperm midpiece, revealing for the first time an effect upon structural elements within the sperm. Finally, differences in male-male encounter rates between oviparous and viviparous species seem to lead to differences in levels of sperm competition. We conclude that the influence of sperm competition upon different sperm components varies between taxa, because their structure and function is different.Fil: Tourmente, Maximiliano. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Diversidad Biológica y Ecologica; ArgentinaFil: Gomendio, Montserrat. Consejo Superior de Investigaciones Científicas; España. Museo Nacional de Ciencias Naturales ; EspañaFil: Roldan, Eduardo Danilo. Museo Nacional de Ciencias Naturales ; España. Consejo Superior de Investigaciones Científicas; EspañaFil: Giojalas, Laura Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Chiaraviglio, Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaWiley Blackwell Publishing, Inc2009-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/59871Tourmente, Maximiliano; Gomendio, Montserrat; Roldan, Eduardo Danilo; Giojalas, Laura Cecilia; Chiaraviglio, Margarita; Sperm competition and reproductive mode influence sperm dimensions and structure among snakes; Wiley Blackwell Publishing, Inc; Evolution; 63; 10; 10-2009; 2513-25240014-38201558-5646CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www3.interscience.wiley.com/journal/122414004/abstract?CRETRY=1&SRETRY=0info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1558-5646.2009.00739.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:42Zoai:ri.conicet.gov.ar:11336/59871instacron: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:34982025-09-03 10:06:42.858CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Sperm competition and reproductive mode influence sperm dimensions and structure among snakes
title Sperm competition and reproductive mode influence sperm dimensions and structure among snakes
spellingShingle Sperm competition and reproductive mode influence sperm dimensions and structure among snakes
Tourmente, Maximiliano
MATING SYSTEMS
REPRODUCTIVE STRATEGIES
SELECTION-SEXUAL
SNAKES
SPERM COMPETITION
SPERM STRUCTURE
title_short Sperm competition and reproductive mode influence sperm dimensions and structure among snakes
title_full Sperm competition and reproductive mode influence sperm dimensions and structure among snakes
title_fullStr Sperm competition and reproductive mode influence sperm dimensions and structure among snakes
title_full_unstemmed Sperm competition and reproductive mode influence sperm dimensions and structure among snakes
title_sort Sperm competition and reproductive mode influence sperm dimensions and structure among snakes
dc.creator.none.fl_str_mv Tourmente, Maximiliano
Gomendio, Montserrat
Roldan, Eduardo Danilo
Giojalas, Laura Cecilia
Chiaraviglio, Margarita
author Tourmente, Maximiliano
author_facet Tourmente, Maximiliano
Gomendio, Montserrat
Roldan, Eduardo Danilo
Giojalas, Laura Cecilia
Chiaraviglio, Margarita
author_role author
author2 Gomendio, Montserrat
Roldan, Eduardo Danilo
Giojalas, Laura Cecilia
Chiaraviglio, Margarita
author2_role author
author
author
author
dc.subject.none.fl_str_mv MATING SYSTEMS
REPRODUCTIVE STRATEGIES
SELECTION-SEXUAL
SNAKES
SPERM COMPETITION
SPERM STRUCTURE
topic MATING SYSTEMS
REPRODUCTIVE STRATEGIES
SELECTION-SEXUAL
SNAKES
SPERM COMPETITION
SPERM STRUCTURE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The role of sperm competition in increasing sperm length is a controversial issue, because findings from different taxa seem contradictory. We present a comparative study of 25 species of snakes with different levels of sperm competition to test whether it influences the size and structure of different sperm components. We show that, as levels of sperm competition increase, so does sperm length, and that this elongation is largely explained by increases in midpiece length. In snakes, the midpiece is comparatively large and it contains structures, which in other taxa are present in the rest of the flagellum, suggesting that it may integrate some of its functions. Thus, increases in sperm midpiece size would result in more energy as well as greater propulsion force. Sperm competition also increases the area occupied by the fibrous sheath and outer dense fibers within the sperm midpiece, revealing for the first time an effect upon structural elements within the sperm. Finally, differences in male-male encounter rates between oviparous and viviparous species seem to lead to differences in levels of sperm competition. We conclude that the influence of sperm competition upon different sperm components varies between taxa, because their structure and function is different.
Fil: Tourmente, Maximiliano. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Diversidad Biológica y Ecologica; Argentina
Fil: Gomendio, Montserrat. Consejo Superior de Investigaciones Científicas; España. Museo Nacional de Ciencias Naturales ; España
Fil: Roldan, Eduardo Danilo. Museo Nacional de Ciencias Naturales ; España. Consejo Superior de Investigaciones Científicas; España
Fil: Giojalas, Laura Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Chiaraviglio, Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
description The role of sperm competition in increasing sperm length is a controversial issue, because findings from different taxa seem contradictory. We present a comparative study of 25 species of snakes with different levels of sperm competition to test whether it influences the size and structure of different sperm components. We show that, as levels of sperm competition increase, so does sperm length, and that this elongation is largely explained by increases in midpiece length. In snakes, the midpiece is comparatively large and it contains structures, which in other taxa are present in the rest of the flagellum, suggesting that it may integrate some of its functions. Thus, increases in sperm midpiece size would result in more energy as well as greater propulsion force. Sperm competition also increases the area occupied by the fibrous sheath and outer dense fibers within the sperm midpiece, revealing for the first time an effect upon structural elements within the sperm. Finally, differences in male-male encounter rates between oviparous and viviparous species seem to lead to differences in levels of sperm competition. We conclude that the influence of sperm competition upon different sperm components varies between taxa, because their structure and function is different.
publishDate 2009
dc.date.none.fl_str_mv 2009-10
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/11336/59871
Tourmente, Maximiliano; Gomendio, Montserrat; Roldan, Eduardo Danilo; Giojalas, Laura Cecilia; Chiaraviglio, Margarita; Sperm competition and reproductive mode influence sperm dimensions and structure among snakes; Wiley Blackwell Publishing, Inc; Evolution; 63; 10; 10-2009; 2513-2524
0014-3820
1558-5646
CONICET Digital
CONICET
url http://hdl.handle.net/11336/59871
identifier_str_mv Tourmente, Maximiliano; Gomendio, Montserrat; Roldan, Eduardo Danilo; Giojalas, Laura Cecilia; Chiaraviglio, Margarita; Sperm competition and reproductive mode influence sperm dimensions and structure among snakes; Wiley Blackwell Publishing, Inc; Evolution; 63; 10; 10-2009; 2513-2524
0014-3820
1558-5646
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www3.interscience.wiley.com/journal/122414004/abstract?CRETRY=1&SRETRY=0
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1558-5646.2009.00739.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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
_version_ 1842269970827837440
score 13.13397

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