Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological...

Autores
Rossi, Luis Francisco; Luaces, Juan Pablo; Aldana Marcos, Hernan Javier; Cetica, Pablo Daniel; Perez Jimeno, Guillermo; Merani, Maria Susana
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The anatomy and histology of the male genital tract of the lesser anteater were studied. Fine details of spermatozoa regarding their genesis and morphology were also studied in six adult specimens. The testes lie in the pelvic cavity. The deferent duct emerges from the epididymis and opens into the ejaculatory duct, which drains into the membranous urethra. Accessory glands (prostate, seminal vesicle and bulbourethral gland) are histologically similar to those described in other mammals. The short penis presents an urethral orifice, while the corpus spongiosum becomes thinner at the end indicating the absence of a histologically defined glans. The seminiferous epithelium shows: (1) Sertoli cells with deep nuclear indentations, (2) spermatogonia with crusty-like chromatin, (3) spermatocytes at different stages of maturation and (4) three morphologi- cally distinct stages of spermatid differentiation according to nuclear shape, acrosome development and chromatin condensation. Sperm heads appear oval. The length of the spermatozoa averages 67.33 ± 1.60 lm. Two specimens with inactive spermatogenesis were azoospermic. Their testes and epididymis pre- sented sizes smaller than those with active spermatogenesis. These studies together with others in anteaters may contribute to successful breeding in conservation programmes.
Fil: Rossi, Luis Francisco. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Luaces, Juan Pablo. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Aldana Marcos, Hernan Javier. Universidad de Belgrano. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Cetica, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigacion y Tecnología en Reproducción Animal; Argentina
Fil: Perez Jimeno, Guillermo. Proyecto Conservacion Oso Hormiguero; Argentina
Fil: Merani, Maria Susana. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Materia
Anatomy
Histology
Male reproductive tract
Lesser anteater
Tamandua tetradactyla
Myrmecophagidae
Xenarthra
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:11336/102370
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/102370
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive FunctionsRossi, Luis FranciscoLuaces, Juan PabloAldana Marcos, Hernan JavierCetica, Pablo DanielPerez Jimeno, GuillermoMerani, Maria SusanaAnatomyHistologyMale reproductive tractLesser anteaterTamandua tetradactylaMyrmecophagidaeXenarthrahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The anatomy and histology of the male genital tract of the lesser anteater were studied. Fine details of spermatozoa regarding their genesis and morphology were also studied in six adult specimens. The testes lie in the pelvic cavity. The deferent duct emerges from the epididymis and opens into the ejaculatory duct, which drains into the membranous urethra. Accessory glands (prostate, seminal vesicle and bulbourethral gland) are histologically similar to those described in other mammals. The short penis presents an urethral orifice, while the corpus spongiosum becomes thinner at the end indicating the absence of a histologically defined glans. The seminiferous epithelium shows: (1) Sertoli cells with deep nuclear indentations, (2) spermatogonia with crusty-like chromatin, (3) spermatocytes at different stages of maturation and (4) three morphologi- cally distinct stages of spermatid differentiation according to nuclear shape, acrosome development and chromatin condensation. Sperm heads appear oval. The length of the spermatozoa averages 67.33 ± 1.60 lm. Two specimens with inactive spermatogenesis were azoospermic. Their testes and epididymis pre- sented sizes smaller than those with active spermatogenesis. These studies together with others in anteaters may contribute to successful breeding in conservation programmes.Fil: Rossi, Luis Francisco. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Luaces, Juan Pablo. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Aldana Marcos, Hernan Javier. Universidad de Belgrano. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Cetica, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigacion y Tecnología en Reproducción Animal; ArgentinaFil: Perez Jimeno, Guillermo. Proyecto Conservacion Oso Hormiguero; ArgentinaFil: Merani, Maria Susana. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaWiley Blackwell Publishing, Inc2013-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/102370Rossi, Luis Francisco; Luaces, Juan Pablo; Aldana Marcos, Hernan Javier; Cetica, Pablo Daniel; Perez Jimeno, Guillermo; et al.; Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions; Wiley Blackwell Publishing, Inc; Anatomia Histologia Embryologia-Journal Of Veterinary Medicine Series C; 42; 4; 8-2013; 247-2561439-02640340-2096CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/ahe.12008/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1111/ahe.12008info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:07:18Zoai:ri.conicet.gov.ar:11336/102370instacron: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 10:07:19.058CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions
title Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions
spellingShingle Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions
Rossi, Luis Francisco
Anatomy
Histology
Male reproductive tract
Lesser anteater
Tamandua tetradactyla
Myrmecophagidae
Xenarthra
title_short Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions
title_full Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions
title_fullStr Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions
title_full_unstemmed Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions
title_sort Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions
dc.creator.none.fl_str_mv Rossi, Luis Francisco
Luaces, Juan Pablo
Aldana Marcos, Hernan Javier
Cetica, Pablo Daniel
Perez Jimeno, Guillermo
Merani, Maria Susana
author Rossi, Luis Francisco
author_facet Rossi, Luis Francisco
Luaces, Juan Pablo
Aldana Marcos, Hernan Javier
Cetica, Pablo Daniel
Perez Jimeno, Guillermo
Merani, Maria Susana
author_role author
author2 Luaces, Juan Pablo
Aldana Marcos, Hernan Javier
Cetica, Pablo Daniel
Perez Jimeno, Guillermo
Merani, Maria Susana
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Anatomy
Histology
Male reproductive tract
Lesser anteater
Tamandua tetradactyla
Myrmecophagidae
Xenarthra
topic Anatomy
Histology
Male reproductive tract
Lesser anteater
Tamandua tetradactyla
Myrmecophagidae
Xenarthra
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The anatomy and histology of the male genital tract of the lesser anteater were studied. Fine details of spermatozoa regarding their genesis and morphology were also studied in six adult specimens. The testes lie in the pelvic cavity. The deferent duct emerges from the epididymis and opens into the ejaculatory duct, which drains into the membranous urethra. Accessory glands (prostate, seminal vesicle and bulbourethral gland) are histologically similar to those described in other mammals. The short penis presents an urethral orifice, while the corpus spongiosum becomes thinner at the end indicating the absence of a histologically defined glans. The seminiferous epithelium shows: (1) Sertoli cells with deep nuclear indentations, (2) spermatogonia with crusty-like chromatin, (3) spermatocytes at different stages of maturation and (4) three morphologi- cally distinct stages of spermatid differentiation according to nuclear shape, acrosome development and chromatin condensation. Sperm heads appear oval. The length of the spermatozoa averages 67.33 ± 1.60 lm. Two specimens with inactive spermatogenesis were azoospermic. Their testes and epididymis pre- sented sizes smaller than those with active spermatogenesis. These studies together with others in anteaters may contribute to successful breeding in conservation programmes.
Fil: Rossi, Luis Francisco. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Luaces, Juan Pablo. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Aldana Marcos, Hernan Javier. Universidad de Belgrano. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Cetica, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigacion y Tecnología en Reproducción Animal; Argentina
Fil: Perez Jimeno, Guillermo. Proyecto Conservacion Oso Hormiguero; Argentina
Fil: Merani, Maria Susana. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
description The anatomy and histology of the male genital tract of the lesser anteater were studied. Fine details of spermatozoa regarding their genesis and morphology were also studied in six adult specimens. The testes lie in the pelvic cavity. The deferent duct emerges from the epididymis and opens into the ejaculatory duct, which drains into the membranous urethra. Accessory glands (prostate, seminal vesicle and bulbourethral gland) are histologically similar to those described in other mammals. The short penis presents an urethral orifice, while the corpus spongiosum becomes thinner at the end indicating the absence of a histologically defined glans. The seminiferous epithelium shows: (1) Sertoli cells with deep nuclear indentations, (2) spermatogonia with crusty-like chromatin, (3) spermatocytes at different stages of maturation and (4) three morphologi- cally distinct stages of spermatid differentiation according to nuclear shape, acrosome development and chromatin condensation. Sperm heads appear oval. The length of the spermatozoa averages 67.33 ± 1.60 lm. Two specimens with inactive spermatogenesis were azoospermic. Their testes and epididymis pre- sented sizes smaller than those with active spermatogenesis. These studies together with others in anteaters may contribute to successful breeding in conservation programmes.
publishDate 2013
dc.date.none.fl_str_mv 2013-08
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/11336/102370
Rossi, Luis Francisco; Luaces, Juan Pablo; Aldana Marcos, Hernan Javier; Cetica, Pablo Daniel; Perez Jimeno, Guillermo; et al.; Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions; Wiley Blackwell Publishing, Inc; Anatomia Histologia Embryologia-Journal Of Veterinary Medicine Series C; 42; 4; 8-2013; 247-256
1439-0264
0340-2096
CONICET Digital
CONICET
url http://hdl.handle.net/11336/102370
identifier_str_mv Rossi, Luis Francisco; Luaces, Juan Pablo; Aldana Marcos, Hernan Javier; Cetica, Pablo Daniel; Perez Jimeno, Guillermo; et al.; Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater ( Tamandua tetradactyla , Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions; Wiley Blackwell Publishing, Inc; Anatomia Histologia Embryologia-Journal Of Veterinary Medicine Series C; 42; 4; 8-2013; 247-256
1439-0264
0340-2096
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://onlinelibrary.wiley.com/doi/10.1111/ahe.12008/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1111/ahe.12008
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
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
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score 13.13397

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