Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus
- Autores
- Ramallo, Martín Roberto; Grober, Matthew; Canepa, Maximiliano Martin; Morandini, Leonel; Pandolfi, Matias
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In non-mammalian vertebrates, the nonapeptide arginine-vasotocin (AVT) is involved in the regulation of social behavior related to reproduction and aggression. The cichlid fish Cichlasoma dimerus is a monogamous species with complex social hierarchies. Males are found in one of two basic alternative phenotypes: Non-territorial and territorial males. In this work we characterize the vasotocinergic system in males of C. dimerus in relation to social status with particular emphasis on the various putative sites of action of AVT across the hypothalamic–pituitary–gonad (HPG) axis, and its effects on reproductive and social behavior. The location and distribution of vasotocinergic neurons in the brain was studied, highlighting a morphometric analysis of AVT producing neurons in males of different social status. The effect of AVT on pituitary gonadotropin secretion was analyzed by single pituitary culture while expression of AVT in peripheral organs was studied by RT-PCR using specific primers. Finally, the role of AVT on testicular androgen release was assessed by in vitro incubation of testis. Results showed a positive effect of AVT on gonadotropin secretion, where β-LH showcased a triphasic response under increasing AVT concentration, while β-FSH’s response was dose-dependent and directly proportional. AVT showed a positive and concentration-dependent effect over testicular androgens synthesis and secretion in vitro. Vasotocin expression was observed in testicular somatic tissue located in the interstitial compartment. Thus, the AVT system in C. dimerus appears to be of high complexity, with multiple sites of action in the hypothalamus–pituitary–gonadal axis.
Fil: Ramallo, Martín Roberto. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Grober, Matthew. Georgia State University; Estados Unidos
Fil: Canepa, Maximiliano Martin. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Morandini, Leonel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Pandolfi, Matias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina - Materia
-
androgens
cichlids
neuropeptides
Behavior - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/113527
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Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerusRamallo, Martín RobertoGrober, MatthewCanepa, Maximiliano MartinMorandini, LeonelPandolfi, MatiasandrogenscichlidsneuropeptidesBehaviorhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In non-mammalian vertebrates, the nonapeptide arginine-vasotocin (AVT) is involved in the regulation of social behavior related to reproduction and aggression. The cichlid fish Cichlasoma dimerus is a monogamous species with complex social hierarchies. Males are found in one of two basic alternative phenotypes: Non-territorial and territorial males. In this work we characterize the vasotocinergic system in males of C. dimerus in relation to social status with particular emphasis on the various putative sites of action of AVT across the hypothalamic–pituitary–gonad (HPG) axis, and its effects on reproductive and social behavior. The location and distribution of vasotocinergic neurons in the brain was studied, highlighting a morphometric analysis of AVT producing neurons in males of different social status. The effect of AVT on pituitary gonadotropin secretion was analyzed by single pituitary culture while expression of AVT in peripheral organs was studied by RT-PCR using specific primers. Finally, the role of AVT on testicular androgen release was assessed by in vitro incubation of testis. Results showed a positive effect of AVT on gonadotropin secretion, where β-LH showcased a triphasic response under increasing AVT concentration, while β-FSH’s response was dose-dependent and directly proportional. AVT showed a positive and concentration-dependent effect over testicular androgens synthesis and secretion in vitro. Vasotocin expression was observed in testicular somatic tissue located in the interstitial compartment. Thus, the AVT system in C. dimerus appears to be of high complexity, with multiple sites of action in the hypothalamus–pituitary–gonadal axis.Fil: Ramallo, Martín Roberto. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Grober, Matthew. Georgia State University; Estados UnidosFil: Canepa, Maximiliano Martin. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Morandini, Leonel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Pandolfi, Matias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaAcademic Press Inc Elsevier Science2012-11info: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/11336/113527Ramallo, Martín Roberto; Grober, Matthew; Canepa, Maximiliano Martin; Morandini, Leonel; Pandolfi, Matias; Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus; Academic Press Inc Elsevier Science; General and Comparative Endocrinology; 179; 2; 11-2012; 221-2310016-6480CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0016648012003322info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ygcen.2012.08.015info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:03:55Zoai:ri.conicet.gov.ar:11336/113527instacron: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 10:03:56.214CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus |
title |
Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus |
spellingShingle |
Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus Ramallo, Martín Roberto androgens cichlids neuropeptides Behavior |
title_short |
Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus |
title_full |
Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus |
title_fullStr |
Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus |
title_full_unstemmed |
Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus |
title_sort |
Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus |
dc.creator.none.fl_str_mv |
Ramallo, Martín Roberto Grober, Matthew Canepa, Maximiliano Martin Morandini, Leonel Pandolfi, Matias |
author |
Ramallo, Martín Roberto |
author_facet |
Ramallo, Martín Roberto Grober, Matthew Canepa, Maximiliano Martin Morandini, Leonel Pandolfi, Matias |
author_role |
author |
author2 |
Grober, Matthew Canepa, Maximiliano Martin Morandini, Leonel Pandolfi, Matias |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
androgens cichlids neuropeptides Behavior |
topic |
androgens cichlids neuropeptides Behavior |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
In non-mammalian vertebrates, the nonapeptide arginine-vasotocin (AVT) is involved in the regulation of social behavior related to reproduction and aggression. The cichlid fish Cichlasoma dimerus is a monogamous species with complex social hierarchies. Males are found in one of two basic alternative phenotypes: Non-territorial and territorial males. In this work we characterize the vasotocinergic system in males of C. dimerus in relation to social status with particular emphasis on the various putative sites of action of AVT across the hypothalamic–pituitary–gonad (HPG) axis, and its effects on reproductive and social behavior. The location and distribution of vasotocinergic neurons in the brain was studied, highlighting a morphometric analysis of AVT producing neurons in males of different social status. The effect of AVT on pituitary gonadotropin secretion was analyzed by single pituitary culture while expression of AVT in peripheral organs was studied by RT-PCR using specific primers. Finally, the role of AVT on testicular androgen release was assessed by in vitro incubation of testis. Results showed a positive effect of AVT on gonadotropin secretion, where β-LH showcased a triphasic response under increasing AVT concentration, while β-FSH’s response was dose-dependent and directly proportional. AVT showed a positive and concentration-dependent effect over testicular androgens synthesis and secretion in vitro. Vasotocin expression was observed in testicular somatic tissue located in the interstitial compartment. Thus, the AVT system in C. dimerus appears to be of high complexity, with multiple sites of action in the hypothalamus–pituitary–gonadal axis. Fil: Ramallo, Martín Roberto. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina Fil: Grober, Matthew. Georgia State University; Estados Unidos Fil: Canepa, Maximiliano Martin. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina Fil: Morandini, Leonel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina Fil: Pandolfi, Matias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina |
description |
In non-mammalian vertebrates, the nonapeptide arginine-vasotocin (AVT) is involved in the regulation of social behavior related to reproduction and aggression. The cichlid fish Cichlasoma dimerus is a monogamous species with complex social hierarchies. Males are found in one of two basic alternative phenotypes: Non-territorial and territorial males. In this work we characterize the vasotocinergic system in males of C. dimerus in relation to social status with particular emphasis on the various putative sites of action of AVT across the hypothalamic–pituitary–gonad (HPG) axis, and its effects on reproductive and social behavior. The location and distribution of vasotocinergic neurons in the brain was studied, highlighting a morphometric analysis of AVT producing neurons in males of different social status. The effect of AVT on pituitary gonadotropin secretion was analyzed by single pituitary culture while expression of AVT in peripheral organs was studied by RT-PCR using specific primers. Finally, the role of AVT on testicular androgen release was assessed by in vitro incubation of testis. Results showed a positive effect of AVT on gonadotropin secretion, where β-LH showcased a triphasic response under increasing AVT concentration, while β-FSH’s response was dose-dependent and directly proportional. AVT showed a positive and concentration-dependent effect over testicular androgens synthesis and secretion in vitro. Vasotocin expression was observed in testicular somatic tissue located in the interstitial compartment. Thus, the AVT system in C. dimerus appears to be of high complexity, with multiple sites of action in the hypothalamus–pituitary–gonadal axis. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-11 |
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/11336/113527 Ramallo, Martín Roberto; Grober, Matthew; Canepa, Maximiliano Martin; Morandini, Leonel; Pandolfi, Matias; Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus; Academic Press Inc Elsevier Science; General and Comparative Endocrinology; 179; 2; 11-2012; 221-231 0016-6480 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/113527 |
identifier_str_mv |
Ramallo, Martín Roberto; Grober, Matthew; Canepa, Maximiliano Martin; Morandini, Leonel; Pandolfi, Matias; Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus; Academic Press Inc Elsevier Science; General and Comparative Endocrinology; 179; 2; 11-2012; 221-231 0016-6480 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.sciencedirect.com/science/article/pii/S0016648012003322 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ygcen.2012.08.015 |
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 |
Academic Press Inc Elsevier Science |
publisher.none.fl_str_mv |
Academic Press Inc Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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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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1842269827597598720 |
score |
13.13397 |