How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae)

Autores
Boretto, Jorgelina Mariela; Jahn, Graciela Alma; Fornes, Miguel Walter; Cussac, Victor Enrique; Ibarguengoytía, Nora
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Phymaturus zapalensis inhabits harsh thermal environments in the steppe of Patagonia, Argentina, characterized by climate conditions that impose constraints on reproduction, providing an appealing model to study the role of steroid hormones in the regulation of seasonal reproductive events. Males of P. zapalensis exhibited a postnuptial spermatogenic cycle with spermiation in mid-spring in synchrony with female ovulation time when mating occurs, followed by testicular recrudescence, but do not show sperm reservoir during hibernation period in winter. Females of P. zapalensis can reproduce annually or biennially. Here, we studied the steroidogenic functions of testicular compartments of P. zapalensis by analysing serum testosterone and ultrastructure related to steroidogenic activity in Sertoli and Leydig cells, as a possible mechanism for the synchronization of male and female reproductive cycles. The testosterone cycle resembles the gonadal cycle in P. zapalensis previously described by morphology and histology of testes. Testosterone concentration is highest in mid-spring and lowest in early summer, with an initial recovery at the beginning of a new spermatogenic cycle in late summer and early autumn. Ultrastructural morphological features indicative of steroidogenic activity in Leydig and Sertoli cells were observed during the spermatogenic cycle. Evidence of temporal asynchrony in steroidogenic activity between compartments were found in males captured in summer and autumn, while synchronous activity was found during mating in spring. Temporal separation of steroidogenic activity serves to synchronize male and female cycles in P. zapalensis and assures the adjustment of reproductive activity to physiological and environmental constraints.
Fil: Boretto, Jorgelina Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Jahn, Graciela Alma. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Medicina y Biología Experimental de Cuyo; Argentina
Fil: Fornes, Miguel Walter. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; Argentina
Fil: Cussac, Victor Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Ibarguengoytía, Nora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Materia
Leydig and Sertoli cells
Lizard
Steroidogenesis
Testicular function
Testosterone
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:11336/268963
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/268963
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae)Boretto, Jorgelina MarielaJahn, Graciela AlmaFornes, Miguel WalterCussac, Victor EnriqueIbarguengoytía, NoraLeydig and Sertoli cellsLizardSteroidogenesisTesticular functionTestosteronehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Phymaturus zapalensis inhabits harsh thermal environments in the steppe of Patagonia, Argentina, characterized by climate conditions that impose constraints on reproduction, providing an appealing model to study the role of steroid hormones in the regulation of seasonal reproductive events. Males of P. zapalensis exhibited a postnuptial spermatogenic cycle with spermiation in mid-spring in synchrony with female ovulation time when mating occurs, followed by testicular recrudescence, but do not show sperm reservoir during hibernation period in winter. Females of P. zapalensis can reproduce annually or biennially. Here, we studied the steroidogenic functions of testicular compartments of P. zapalensis by analysing serum testosterone and ultrastructure related to steroidogenic activity in Sertoli and Leydig cells, as a possible mechanism for the synchronization of male and female reproductive cycles. The testosterone cycle resembles the gonadal cycle in P. zapalensis previously described by morphology and histology of testes. Testosterone concentration is highest in mid-spring and lowest in early summer, with an initial recovery at the beginning of a new spermatogenic cycle in late summer and early autumn. Ultrastructural morphological features indicative of steroidogenic activity in Leydig and Sertoli cells were observed during the spermatogenic cycle. Evidence of temporal asynchrony in steroidogenic activity between compartments were found in males captured in summer and autumn, while synchronous activity was found during mating in spring. Temporal separation of steroidogenic activity serves to synchronize male and female cycles in P. zapalensis and assures the adjustment of reproductive activity to physiological and environmental constraints.Fil: Boretto, Jorgelina Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Jahn, Graciela Alma. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Medicina y Biología Experimental de Cuyo; ArgentinaFil: Fornes, Miguel Walter. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; ArgentinaFil: Cussac, Victor Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Ibarguengoytía, Nora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaBritish Herpetological Society2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/268963Boretto, Jorgelina Mariela; Jahn, Graciela Alma; Fornes, Miguel Walter; Cussac, Victor Enrique; Ibarguengoytía, Nora; How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae); British Herpetological Society; Herpetological Journal; 22; 1-2012; 33-420268-0130CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.thebhs.org/publications/the-herpetological-journal/volume-22-number-1-january-2012/648-06-how-males-synchronize-their-reproductive-cycles-with-females-to-cope-with-seasonal-climate-an-endocrinal-and-ultrastructural-study-of-i-phymaturus-zapalensis-i-lizards-liolaemidaeinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:35:18Zoai:ri.conicet.gov.ar:11336/268963instacron: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 14:35:18.848CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae)
title How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae)
spellingShingle How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae)
Boretto, Jorgelina Mariela
Leydig and Sertoli cells
Lizard
Steroidogenesis
Testicular function
Testosterone
title_short How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae)
title_full How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae)
title_fullStr How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae)
title_full_unstemmed How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae)
title_sort How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae)
dc.creator.none.fl_str_mv Boretto, Jorgelina Mariela
Jahn, Graciela Alma
Fornes, Miguel Walter
Cussac, Victor Enrique
Ibarguengoytía, Nora
author Boretto, Jorgelina Mariela
author_facet Boretto, Jorgelina Mariela
Jahn, Graciela Alma
Fornes, Miguel Walter
Cussac, Victor Enrique
Ibarguengoytía, Nora
author_role author
author2 Jahn, Graciela Alma
Fornes, Miguel Walter
Cussac, Victor Enrique
Ibarguengoytía, Nora
author2_role author
author
author
author
dc.subject.none.fl_str_mv Leydig and Sertoli cells
Lizard
Steroidogenesis
Testicular function
Testosterone
topic Leydig and Sertoli cells
Lizard
Steroidogenesis
Testicular function
Testosterone
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Phymaturus zapalensis inhabits harsh thermal environments in the steppe of Patagonia, Argentina, characterized by climate conditions that impose constraints on reproduction, providing an appealing model to study the role of steroid hormones in the regulation of seasonal reproductive events. Males of P. zapalensis exhibited a postnuptial spermatogenic cycle with spermiation in mid-spring in synchrony with female ovulation time when mating occurs, followed by testicular recrudescence, but do not show sperm reservoir during hibernation period in winter. Females of P. zapalensis can reproduce annually or biennially. Here, we studied the steroidogenic functions of testicular compartments of P. zapalensis by analysing serum testosterone and ultrastructure related to steroidogenic activity in Sertoli and Leydig cells, as a possible mechanism for the synchronization of male and female reproductive cycles. The testosterone cycle resembles the gonadal cycle in P. zapalensis previously described by morphology and histology of testes. Testosterone concentration is highest in mid-spring and lowest in early summer, with an initial recovery at the beginning of a new spermatogenic cycle in late summer and early autumn. Ultrastructural morphological features indicative of steroidogenic activity in Leydig and Sertoli cells were observed during the spermatogenic cycle. Evidence of temporal asynchrony in steroidogenic activity between compartments were found in males captured in summer and autumn, while synchronous activity was found during mating in spring. Temporal separation of steroidogenic activity serves to synchronize male and female cycles in P. zapalensis and assures the adjustment of reproductive activity to physiological and environmental constraints.
Fil: Boretto, Jorgelina Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Jahn, Graciela Alma. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Medicina y Biología Experimental de Cuyo; Argentina
Fil: Fornes, Miguel Walter. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; Argentina
Fil: Cussac, Victor Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Ibarguengoytía, Nora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
description Phymaturus zapalensis inhabits harsh thermal environments in the steppe of Patagonia, Argentina, characterized by climate conditions that impose constraints on reproduction, providing an appealing model to study the role of steroid hormones in the regulation of seasonal reproductive events. Males of P. zapalensis exhibited a postnuptial spermatogenic cycle with spermiation in mid-spring in synchrony with female ovulation time when mating occurs, followed by testicular recrudescence, but do not show sperm reservoir during hibernation period in winter. Females of P. zapalensis can reproduce annually or biennially. Here, we studied the steroidogenic functions of testicular compartments of P. zapalensis by analysing serum testosterone and ultrastructure related to steroidogenic activity in Sertoli and Leydig cells, as a possible mechanism for the synchronization of male and female reproductive cycles. The testosterone cycle resembles the gonadal cycle in P. zapalensis previously described by morphology and histology of testes. Testosterone concentration is highest in mid-spring and lowest in early summer, with an initial recovery at the beginning of a new spermatogenic cycle in late summer and early autumn. Ultrastructural morphological features indicative of steroidogenic activity in Leydig and Sertoli cells were observed during the spermatogenic cycle. Evidence of temporal asynchrony in steroidogenic activity between compartments were found in males captured in summer and autumn, while synchronous activity was found during mating in spring. Temporal separation of steroidogenic activity serves to synchronize male and female cycles in P. zapalensis and assures the adjustment of reproductive activity to physiological and environmental constraints.
publishDate 2012
dc.date.none.fl_str_mv 2012-01
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/11336/268963
Boretto, Jorgelina Mariela; Jahn, Graciela Alma; Fornes, Miguel Walter; Cussac, Victor Enrique; Ibarguengoytía, Nora; How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae); British Herpetological Society; Herpetological Journal; 22; 1-2012; 33-42
0268-0130
CONICET Digital
CONICET
url http://hdl.handle.net/11336/268963
identifier_str_mv Boretto, Jorgelina Mariela; Jahn, Graciela Alma; Fornes, Miguel Walter; Cussac, Victor Enrique; Ibarguengoytía, Nora; How males synchronize their reproductive cycles with females to cope with seasonal climate: An endocrinal and ultrastructural study of Phymaturus zapalensis lizards (Liolaemidae); British Herpetological Society; Herpetological Journal; 22; 1-2012; 33-42
0268-0130
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.thebhs.org/publications/the-herpetological-journal/volume-22-number-1-january-2012/648-06-how-males-synchronize-their-reproductive-cycles-with-females-to-cope-with-seasonal-climate-an-endocrinal-and-ultrastructural-study-of-i-phymaturus-zapalensis-i-lizards-liolaemidae
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv British Herpetological Society
publisher.none.fl_str_mv British Herpetological Society
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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score 13.22299

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