Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases

Detalhes bibliográficos
Autor(a) principal: Beguelini, Mateus R.
Data de Publicação: 2020
Outros Autores: Santiago, Cornélio S., Morielle-Versute, Eliana [UNESP], Taboga, Sebastião R. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.theriogenology.2020.09.004
http://hdl.handle.net/11449/205188
Resumo: Myotis nigricans is an important species of insectivorous bat from the Vespertilionidae family, which is endemic of the Neotropics. Despite its wide distribution, no detailed study of the reproduction is found for this species. Thus, the aim of the present study was to evaluate and characterize morphological and morphometric variations of the female reproductive organs of M. nigricans during its different reproductive phases. Twenty adult females were collected, divided into four (4) sample groups, according to the reproductive status (nonreproductive, initial and advanced pregnancy and lactating), and submitted to anatomical, histological and morphometric analyses. The results demonstrated that the female reproductive organs of M. nigricans were composed of the ovaries, the uterus, the uterine tubes and the vagina, in addition to the mammary glands. The ovaries present a great number of interstitial glands and a small but persistent corpus luteum. Ovulation is simple, unilateral and non-preferential, possibly alternated in successive ovulations and may be sequential with the occurrence of postpartum estrus. The uterus is bicornuate, implantation is fundic and the placenta is chorioallantoic, discoidal and hemochorial. The vaginal epithelium is weakly keratinized and shows great disorganization during the periods of pregnancy and lactation.
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spelling Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phasesMammary glandOvaryUterine tubeUterusVaginaMyotis nigricans is an important species of insectivorous bat from the Vespertilionidae family, which is endemic of the Neotropics. Despite its wide distribution, no detailed study of the reproduction is found for this species. Thus, the aim of the present study was to evaluate and characterize morphological and morphometric variations of the female reproductive organs of M. nigricans during its different reproductive phases. Twenty adult females were collected, divided into four (4) sample groups, according to the reproductive status (nonreproductive, initial and advanced pregnancy and lactating), and submitted to anatomical, histological and morphometric analyses. The results demonstrated that the female reproductive organs of M. nigricans were composed of the ovaries, the uterus, the uterine tubes and the vagina, in addition to the mammary glands. The ovaries present a great number of interstitial glands and a small but persistent corpus luteum. Ovulation is simple, unilateral and non-preferential, possibly alternated in successive ovulations and may be sequential with the occurrence of postpartum estrus. The uterus is bicornuate, implantation is fundic and the placenta is chorioallantoic, discoidal and hemochorial. The vaginal epithelium is weakly keratinized and shows great disorganization during the periods of pregnancy and lactation.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado da BahiaCenter of Biological and Health Science UFOB - Universidade Federal do Oeste da BahiaDepartment of Zoology and Botany UNESP – Univ. Estadual PaulistaDepartment of Biology UNESP – Univ. Estadual PaulistaDepartment of Zoology and Botany UNESP – Univ. Estadual PaulistaDepartment of Biology UNESP – Univ. Estadual PaulistaCNPq: 407106/2018-9Fundação de Amparo à Pesquisa do Estado da Bahia: 7616/2015Fundação de Amparo à Pesquisa do Estado da Bahia: 9038/2015UFOB - Universidade Federal do Oeste da BahiaUniversidade Estadual Paulista (Unesp)Beguelini, Mateus R.Santiago, Cornélio S.Morielle-Versute, Eliana [UNESP]Taboga, Sebastião R. [UNESP]2021-06-25T10:11:19Z2021-06-25T10:11:19Z2020-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article121-137http://dx.doi.org/10.1016/j.theriogenology.2020.09.004Theriogenology, v. 158, p. 121-137.0093-691Xhttp://hdl.handle.net/11449/20518810.1016/j.theriogenology.2020.09.0042-s2.0-85091244924Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTheriogenologyinfo:eu-repo/semantics/openAccess2021-10-23T11:48:03Zoai:repositorio.unesp.br:11449/205188Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:28:49.395543Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases
title Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases
spellingShingle Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases
Beguelini, Mateus R.
Mammary gland
Ovary
Uterine tube
Uterus
Vagina
title_short Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases
title_full Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases
title_fullStr Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases
title_full_unstemmed Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases
title_sort Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases
author Beguelini, Mateus R.
author_facet Beguelini, Mateus R.
Santiago, Cornélio S.
Morielle-Versute, Eliana [UNESP]
Taboga, Sebastião R. [UNESP]
author_role author
author2 Santiago, Cornélio S.
Morielle-Versute, Eliana [UNESP]
Taboga, Sebastião R. [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv UFOB - Universidade Federal do Oeste da Bahia
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Beguelini, Mateus R.
Santiago, Cornélio S.
Morielle-Versute, Eliana [UNESP]
Taboga, Sebastião R. [UNESP]
dc.subject.por.fl_str_mv Mammary gland
Ovary
Uterine tube
Uterus
Vagina
topic Mammary gland
Ovary
Uterine tube
Uterus
Vagina
description Myotis nigricans is an important species of insectivorous bat from the Vespertilionidae family, which is endemic of the Neotropics. Despite its wide distribution, no detailed study of the reproduction is found for this species. Thus, the aim of the present study was to evaluate and characterize morphological and morphometric variations of the female reproductive organs of M. nigricans during its different reproductive phases. Twenty adult females were collected, divided into four (4) sample groups, according to the reproductive status (nonreproductive, initial and advanced pregnancy and lactating), and submitted to anatomical, histological and morphometric analyses. The results demonstrated that the female reproductive organs of M. nigricans were composed of the ovaries, the uterus, the uterine tubes and the vagina, in addition to the mammary glands. The ovaries present a great number of interstitial glands and a small but persistent corpus luteum. Ovulation is simple, unilateral and non-preferential, possibly alternated in successive ovulations and may be sequential with the occurrence of postpartum estrus. The uterus is bicornuate, implantation is fundic and the placenta is chorioallantoic, discoidal and hemochorial. The vaginal epithelium is weakly keratinized and shows great disorganization during the periods of pregnancy and lactation.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-01
2021-06-25T10:11:19Z
2021-06-25T10:11:19Z
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://dx.doi.org/10.1016/j.theriogenology.2020.09.004
Theriogenology, v. 158, p. 121-137.
0093-691X
http://hdl.handle.net/11449/205188
10.1016/j.theriogenology.2020.09.004
2-s2.0-85091244924
url http://dx.doi.org/10.1016/j.theriogenology.2020.09.004
http://hdl.handle.net/11449/205188
identifier_str_mv Theriogenology, v. 158, p. 121-137.
0093-691X
10.1016/j.theriogenology.2020.09.004
2-s2.0-85091244924
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Theriogenology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 121-137
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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