Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina

Autores
Rodriguez, Florencia Evelyn; Aguirre, María Victoria; Lombardo, Daniel Marcelo
Año de publicación
2024
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The order Chiroptera is one of the most numerous in terms of species among mammals. This order exhibits great diversity in the morphology of their reproductive systems and gonads. In females, a wide variety of uterine morphologies is observed, as well as variations in ovarian morphology and functionality. On the other hand, in males, the testicles exhibit typical mammalian morphology,but the penile structure shows particularities unique to each species. In mammals, the penis is an organ that facilitates fertilization. It has a cylindrical shape with a body through which the urethra runs, and an erectile tissue called the corpus cavernosum, along with a distal portion, the glans, where the urethra continues and ends externally, surrounded by a second erectile tissue, the corpus spongiosum. In some species of bats, the presence of accessory erectile tissues and a penile bone or baculum, also found in other mammals, has been observed. The histological description of this organ is important at the phylogenetic level within this order due to the variation betweenspecies. Therefore, the objective of this study is to describe the penile morphology of Eumops patagonicus at the histological level, belonging to the family Molossidae, a species abundant in urban areas of northeastern Argentina. Samples of E. patagonicus penises were collected (n=8), processed for conventional histology, and stained with hematoxylin-eosin and Gomori´s trichrome. The samples were photographed, differentiating three sections: base, middle, and tip sections. The base section corresponds to the body, while the middle and tip sections correspond to the glans. It was observed that the base of the penis is formed by the urethra, which is surroundedby the corpus cavernosum enclosed by its tunica albuginea of dense connective tissue, which emits an incomplete septum dividing it into two regions. Two peripheral nerves are observed on the sides. In the glans region, the urethra is surrounded by the corpus spongiosum, which is delimited by its tunica albuginea, and in the central region, the presence of a baculum is noted. Externally, the penis is covered by thin skin with a large number of hair follicles, which are absent in the glans that is covered whit skin. Compared to other previously described Eumops species, E. patagonicus has corpus spongiosum in the glans region accompanying the urethra. Moreover, this study reveals the presence of an incomplete septum in the corpus cavernosum, which is not observed in other Chiroptera species. This description of the penis of a member of the Eumops genus lays the foundation for future comparative studies between species of the same genus and family, as it has been of great importance in other taxa such as Rodentia, carnivorous Mustelids, and primates, especially the description of the presence of a baculum.
Fil: Rodriguez, Florencia Evelyn. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; Argentina
Fil: Aguirre, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; Argentina
Fil: Lombardo, Daniel Marcelo. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Cátedra de Histología y Embriologías; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
XXVI Annual Meeting of the Argentinean Society of Biology
Buenos Aires
Argentina
Sociedad Argentina de Biología
Materia
Reprodictive Biology
Bat
Baculum
Histology
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/291157
Acceder
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spelling Description of the penile histology of Eumops patagonicus: A bat from northeastern ArgentinaRodriguez, Florencia EvelynAguirre, María VictoriaLombardo, Daniel MarceloReprodictive BiologyBatBaculumHistologyhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The order Chiroptera is one of the most numerous in terms of species among mammals. This order exhibits great diversity in the morphology of their reproductive systems and gonads. In females, a wide variety of uterine morphologies is observed, as well as variations in ovarian morphology and functionality. On the other hand, in males, the testicles exhibit typical mammalian morphology,but the penile structure shows particularities unique to each species. In mammals, the penis is an organ that facilitates fertilization. It has a cylindrical shape with a body through which the urethra runs, and an erectile tissue called the corpus cavernosum, along with a distal portion, the glans, where the urethra continues and ends externally, surrounded by a second erectile tissue, the corpus spongiosum. In some species of bats, the presence of accessory erectile tissues and a penile bone or baculum, also found in other mammals, has been observed. The histological description of this organ is important at the phylogenetic level within this order due to the variation betweenspecies. Therefore, the objective of this study is to describe the penile morphology of Eumops patagonicus at the histological level, belonging to the family Molossidae, a species abundant in urban areas of northeastern Argentina. Samples of E. patagonicus penises were collected (n=8), processed for conventional histology, and stained with hematoxylin-eosin and Gomori´s trichrome. The samples were photographed, differentiating three sections: base, middle, and tip sections. The base section corresponds to the body, while the middle and tip sections correspond to the glans. It was observed that the base of the penis is formed by the urethra, which is surroundedby the corpus cavernosum enclosed by its tunica albuginea of dense connective tissue, which emits an incomplete septum dividing it into two regions. Two peripheral nerves are observed on the sides. In the glans region, the urethra is surrounded by the corpus spongiosum, which is delimited by its tunica albuginea, and in the central region, the presence of a baculum is noted. Externally, the penis is covered by thin skin with a large number of hair follicles, which are absent in the glans that is covered whit skin. Compared to other previously described Eumops species, E. patagonicus has corpus spongiosum in the glans region accompanying the urethra. Moreover, this study reveals the presence of an incomplete septum in the corpus cavernosum, which is not observed in other Chiroptera species. This description of the penis of a member of the Eumops genus lays the foundation for future comparative studies between species of the same genus and family, as it has been of great importance in other taxa such as Rodentia, carnivorous Mustelids, and primates, especially the description of the presence of a baculum.Fil: Rodriguez, Florencia Evelyn. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; ArgentinaFil: Aguirre, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; ArgentinaFil: Lombardo, Daniel Marcelo. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Cátedra de Histología y Embriologías; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaXXVI Annual Meeting of the Argentinean Society of BiologyBuenos AiresArgentinaSociedad Argentina de BiologíaTech Science Press2024info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/291157Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina; XXVI Annual Meeting of the Argentinean Society of Biology; Buenos Aires; Argentina; 2024; 13-130327-95451667-5746CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.techscience.com/biocell/v48nSuppl.5/63061Nacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T15:47:21Zoai:ri.conicet.gov.ar:11336/291157instacron: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:34982026-08-25 15:47:21.276CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina
title Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina
spellingShingle Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina
Rodriguez, Florencia Evelyn
Reprodictive Biology
Bat
Baculum
Histology
title_short Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina
title_full Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina
title_fullStr Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina
title_full_unstemmed Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina
title_sort Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina
dc.creator.none.fl_str_mv Rodriguez, Florencia Evelyn
Aguirre, María Victoria
Lombardo, Daniel Marcelo
author Rodriguez, Florencia Evelyn
author_facet Rodriguez, Florencia Evelyn
Aguirre, María Victoria
Lombardo, Daniel Marcelo
author_role author
author2 Aguirre, María Victoria
Lombardo, Daniel Marcelo
author2_role author
author
dc.subject.none.fl_str_mv Reprodictive Biology
Bat
Baculum
Histology
topic Reprodictive Biology
Bat
Baculum
Histology
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The order Chiroptera is one of the most numerous in terms of species among mammals. This order exhibits great diversity in the morphology of their reproductive systems and gonads. In females, a wide variety of uterine morphologies is observed, as well as variations in ovarian morphology and functionality. On the other hand, in males, the testicles exhibit typical mammalian morphology,but the penile structure shows particularities unique to each species. In mammals, the penis is an organ that facilitates fertilization. It has a cylindrical shape with a body through which the urethra runs, and an erectile tissue called the corpus cavernosum, along with a distal portion, the glans, where the urethra continues and ends externally, surrounded by a second erectile tissue, the corpus spongiosum. In some species of bats, the presence of accessory erectile tissues and a penile bone or baculum, also found in other mammals, has been observed. The histological description of this organ is important at the phylogenetic level within this order due to the variation betweenspecies. Therefore, the objective of this study is to describe the penile morphology of Eumops patagonicus at the histological level, belonging to the family Molossidae, a species abundant in urban areas of northeastern Argentina. Samples of E. patagonicus penises were collected (n=8), processed for conventional histology, and stained with hematoxylin-eosin and Gomori´s trichrome. The samples were photographed, differentiating three sections: base, middle, and tip sections. The base section corresponds to the body, while the middle and tip sections correspond to the glans. It was observed that the base of the penis is formed by the urethra, which is surroundedby the corpus cavernosum enclosed by its tunica albuginea of dense connective tissue, which emits an incomplete septum dividing it into two regions. Two peripheral nerves are observed on the sides. In the glans region, the urethra is surrounded by the corpus spongiosum, which is delimited by its tunica albuginea, and in the central region, the presence of a baculum is noted. Externally, the penis is covered by thin skin with a large number of hair follicles, which are absent in the glans that is covered whit skin. Compared to other previously described Eumops species, E. patagonicus has corpus spongiosum in the glans region accompanying the urethra. Moreover, this study reveals the presence of an incomplete septum in the corpus cavernosum, which is not observed in other Chiroptera species. This description of the penis of a member of the Eumops genus lays the foundation for future comparative studies between species of the same genus and family, as it has been of great importance in other taxa such as Rodentia, carnivorous Mustelids, and primates, especially the description of the presence of a baculum.
Fil: Rodriguez, Florencia Evelyn. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; Argentina
Fil: Aguirre, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; Argentina
Fil: Lombardo, Daniel Marcelo. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Cátedra de Histología y Embriologías; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
XXVI Annual Meeting of the Argentinean Society of Biology
Buenos Aires
Argentina
Sociedad Argentina de Biología
description The order Chiroptera is one of the most numerous in terms of species among mammals. This order exhibits great diversity in the morphology of their reproductive systems and gonads. In females, a wide variety of uterine morphologies is observed, as well as variations in ovarian morphology and functionality. On the other hand, in males, the testicles exhibit typical mammalian morphology,but the penile structure shows particularities unique to each species. In mammals, the penis is an organ that facilitates fertilization. It has a cylindrical shape with a body through which the urethra runs, and an erectile tissue called the corpus cavernosum, along with a distal portion, the glans, where the urethra continues and ends externally, surrounded by a second erectile tissue, the corpus spongiosum. In some species of bats, the presence of accessory erectile tissues and a penile bone or baculum, also found in other mammals, has been observed. The histological description of this organ is important at the phylogenetic level within this order due to the variation betweenspecies. Therefore, the objective of this study is to describe the penile morphology of Eumops patagonicus at the histological level, belonging to the family Molossidae, a species abundant in urban areas of northeastern Argentina. Samples of E. patagonicus penises were collected (n=8), processed for conventional histology, and stained with hematoxylin-eosin and Gomori´s trichrome. The samples were photographed, differentiating three sections: base, middle, and tip sections. The base section corresponds to the body, while the middle and tip sections correspond to the glans. It was observed that the base of the penis is formed by the urethra, which is surroundedby the corpus cavernosum enclosed by its tunica albuginea of dense connective tissue, which emits an incomplete septum dividing it into two regions. Two peripheral nerves are observed on the sides. In the glans region, the urethra is surrounded by the corpus spongiosum, which is delimited by its tunica albuginea, and in the central region, the presence of a baculum is noted. Externally, the penis is covered by thin skin with a large number of hair follicles, which are absent in the glans that is covered whit skin. Compared to other previously described Eumops species, E. patagonicus has corpus spongiosum in the glans region accompanying the urethra. Moreover, this study reveals the presence of an incomplete septum in the corpus cavernosum, which is not observed in other Chiroptera species. This description of the penis of a member of the Eumops genus lays the foundation for future comparative studies between species of the same genus and family, as it has been of great importance in other taxa such as Rodentia, carnivorous Mustelids, and primates, especially the description of the presence of a baculum.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/291157
Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina; XXVI Annual Meeting of the Argentinean Society of Biology; Buenos Aires; Argentina; 2024; 13-13
0327-9545
1667-5746
CONICET Digital
CONICET
url http://hdl.handle.net/11336/291157
identifier_str_mv Description of the penile histology of Eumops patagonicus: A bat from northeastern Argentina; XXVI Annual Meeting of the Argentinean Society of Biology; Buenos Aires; Argentina; 2024; 13-13
0327-9545
1667-5746
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.techscience.com/biocell/v48nSuppl.5/63061
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eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Nacional
dc.publisher.none.fl_str_mv Tech Science Press
publisher.none.fl_str_mv Tech Science Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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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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