Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.12/8848 |
Resumo: | Vasotocin (VT) has been associated with the regulation of diferent aspects of social behavior (e.g., mating and aggression). Given the fact that androgens are also known to regulate reproductive behavior, we hypothesized that VT and androgens could be interacting, rather than acting independently, in the regulation of reproductive behavior. In the present study, we aimed to understand the efect of VT and its interaction with gonadal hormones (putatively androgens) on diferent aspects of reproductive behavior of a polygynous and territorial cichlid fsh, the Mozambique tilapia (Oreochromis mossambicus). Using a within-subject design, we treated territorial males, that were previously castrated or sham-operated, with diferent dosages of VT as well as with a V1A receptor antagonist (Manning compound) and subsequently analyzed their behavior towards females and towards an intruder male. Our results showed that VT afected the behavior of territorial males towards females but not towards males. Specifcally, VT-treated males interacted less with females (i.e., spent less time touching the transparent partition that allowed visual contact with females) and were less aggressive towards females than salinetreated males. Moreover, in sham-operated males, blocking V1A receptors increased the frequency of bites towards females in comparison to saline-treated males, but not in castrated males. This result suggests that VT down-regulates aggressiveness towards females through the action of V1A receptors in the gonads (putatively decreasing androgen secretion), and that androgens up-regulate this behavior. In summary, our results suggest that VT may modulate social behavior, through an interaction with gonadal hormones. |
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Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fishReproductive behaviorAggressive behaviorVasotocinManning compoundMozambique tilapiaVasotocin (VT) has been associated with the regulation of diferent aspects of social behavior (e.g., mating and aggression). Given the fact that androgens are also known to regulate reproductive behavior, we hypothesized that VT and androgens could be interacting, rather than acting independently, in the regulation of reproductive behavior. In the present study, we aimed to understand the efect of VT and its interaction with gonadal hormones (putatively androgens) on diferent aspects of reproductive behavior of a polygynous and territorial cichlid fsh, the Mozambique tilapia (Oreochromis mossambicus). Using a within-subject design, we treated territorial males, that were previously castrated or sham-operated, with diferent dosages of VT as well as with a V1A receptor antagonist (Manning compound) and subsequently analyzed their behavior towards females and towards an intruder male. Our results showed that VT afected the behavior of territorial males towards females but not towards males. Specifcally, VT-treated males interacted less with females (i.e., spent less time touching the transparent partition that allowed visual contact with females) and were less aggressive towards females than salinetreated males. Moreover, in sham-operated males, blocking V1A receptors increased the frequency of bites towards females in comparison to saline-treated males, but not in castrated males. This result suggests that VT down-regulates aggressiveness towards females through the action of V1A receptors in the gonads (putatively decreasing androgen secretion), and that androgens up-regulate this behavior. In summary, our results suggest that VT may modulate social behavior, through an interaction with gonadal hormones.Fundação para a Ciência e Tecnologia - FCTSpringerRepositório do ISPAAlmeida, OlindaFélix, Ana SofiaOliveira, Rui F.2022-11-29T15:01:13Z20222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.12/8848engAlmeida, O., Félix, A. S., & Oliveira, R. F. (2022). Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish. Acta Ethologica. https://doi.org/10.1007/s10211-022-00404-20873974910.1007/s10211-022-00404-2info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-04T02:15:35Zoai:repositorio.ispa.pt:10400.12/8848Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:15:24.744648Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish |
title |
Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish |
spellingShingle |
Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish Almeida, Olinda Reproductive behavior Aggressive behavior Vasotocin Manning compound Mozambique tilapia |
title_short |
Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish |
title_full |
Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish |
title_fullStr |
Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish |
title_full_unstemmed |
Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish |
title_sort |
Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish |
author |
Almeida, Olinda |
author_facet |
Almeida, Olinda Félix, Ana Sofia Oliveira, Rui F. |
author_role |
author |
author2 |
Félix, Ana Sofia Oliveira, Rui F. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Repositório do ISPA |
dc.contributor.author.fl_str_mv |
Almeida, Olinda Félix, Ana Sofia Oliveira, Rui F. |
dc.subject.por.fl_str_mv |
Reproductive behavior Aggressive behavior Vasotocin Manning compound Mozambique tilapia |
topic |
Reproductive behavior Aggressive behavior Vasotocin Manning compound Mozambique tilapia |
description |
Vasotocin (VT) has been associated with the regulation of diferent aspects of social behavior (e.g., mating and aggression). Given the fact that androgens are also known to regulate reproductive behavior, we hypothesized that VT and androgens could be interacting, rather than acting independently, in the regulation of reproductive behavior. In the present study, we aimed to understand the efect of VT and its interaction with gonadal hormones (putatively androgens) on diferent aspects of reproductive behavior of a polygynous and territorial cichlid fsh, the Mozambique tilapia (Oreochromis mossambicus). Using a within-subject design, we treated territorial males, that were previously castrated or sham-operated, with diferent dosages of VT as well as with a V1A receptor antagonist (Manning compound) and subsequently analyzed their behavior towards females and towards an intruder male. Our results showed that VT afected the behavior of territorial males towards females but not towards males. Specifcally, VT-treated males interacted less with females (i.e., spent less time touching the transparent partition that allowed visual contact with females) and were less aggressive towards females than salinetreated males. Moreover, in sham-operated males, blocking V1A receptors increased the frequency of bites towards females in comparison to saline-treated males, but not in castrated males. This result suggests that VT down-regulates aggressiveness towards females through the action of V1A receptors in the gonads (putatively decreasing androgen secretion), and that androgens up-regulate this behavior. In summary, our results suggest that VT may modulate social behavior, through an interaction with gonadal hormones. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-29T15:01:13Z 2022 2022-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.12/8848 |
url |
http://hdl.handle.net/10400.12/8848 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Almeida, O., Félix, A. S., & Oliveira, R. F. (2022). Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish. Acta Ethologica. https://doi.org/10.1007/s10211-022-00404-2 08739749 10.1007/s10211-022-00404-2 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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