Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1808128519017857024 |