Dopaminergic inhibition of reproduction in teleost fishes: ecophysiological and evolutionary implications

Autor: N. Le Belle, Marie-Emilie Sébert, Catherine Pasqualini, Sylvie Dufour, Finn-Arne Weltzien, Philippe Vernier, B. Vidal
Přispěvatelé: Biologie des organismes marins et écosystèmes (BOME), Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN), Développement, évolution et plasticité du système nerveux (DEPSN), Centre National de la Recherche Scientifique (CNRS), Institut de Neurobiologie Alfred Fessard (INAF), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2005
Předmět:
puberty
MESH: Reproduction
MESH: Sexual Maturation
phylogeny
Receptors
Dopamine
Gonadotropin-Releasing Hormone
0302 clinical medicine
MESH: Gonadotropin-Releasing Hormone
sex change
MESH: Receptors
Dopamine
MESH: Animals
MESH: Ecosystem
Sexual Maturation
media_common
0303 health sciences
biology
General Neuroscience
Dopaminergic
Fishes
Vertebrate
Biological Evolution
[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]
Reproduction
dopamine
medicine.medical_specialty
endocrine system
media_common.quotation_subject
MESH: Dopamine
Neuroendocrinology
teleosts
Inhibitory postsynaptic potential
Gonadotropic cell
General Biochemistry
Genetics and Molecular Biology
reproduction
03 medical and health sciences
History and Philosophy of Science
Phylogenetics
biology.animal
Internal medicine
MESH: Evolution
evolution
medicine
Animals
14. Life underwater
Ecosystem
030304 developmental biology
Endocrinology
MESH: Fishes
Evolutionary biology
neuroendocrinology
Adaptation
030217 neurology & neurosurgery
Zdroj: Annals of the New York Academy of Sciences
Annals of the New York Academy of Sciences, Wiley, 2005, 1040, pp.9. ⟨10.1196/annals.1327.002⟩
Annals of the New York Academy of Sciences, Wiley, 2005, 1040, pp.9-21. ⟨10.1196/annals.1327.002⟩
Annals of the New York Academy of Sciences, 2005, 1040, pp.9-21. ⟨10.1196/annals.1327.002⟩
ISSN: 0077-8923
1749-6632
DOI: 10.1196/annals.1327.002⟩
Popis: International audience; In many teleosts, dopamine (DA) exerts direct inhibitory control on gonadotropes, counteracting the stimulatory effect of gonadotropin-releasing hormone (GnRH) on gonadotropin release. This dual control by GnRH and DA has been demonstrated in various adult teleosts and has major implications for aquaculture. Because of its unique life cycle, the European eel has provided a powerful model for demonstrating the key role of DA in the control of puberty. Data from tetrapods suggest that the inhibitory role of DA on reproduction is not restricted to the teleosts. Thus, DA inhibitory control could represent an ancient evolutionary component in the neuroendocrine regulation of reproduction that may have been differentially maintained throughout vertebrate evolution. The intensity of DA inhibition, its main site of action, and its involvement in the control of puberty, seasonal reproduction, ovulation, spermiation, or even sex change may differ among classes of vertebrates, as well as within smaller phylogenetic units such as teleosts or mammals. An inhibitory role for DA has been reported also in some invertebrates, indicating that neuronal DA pathways may have been recruited in various groups of metazoa to participate in the control of reproduction. In addition to the incontestable GnRH neurons, the recruitment of DA neurons for the neuroendocrine control of reproduction provides an additional brain pathway for the integration of various species-specific, internal, and environmental cues. In teleosts, the plasticity of the DA neuroendocrine role may have contributed to their large diversity of biological cycles and to their successful adaptation to various environments.
Databáze: OpenAIRE
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