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Ferraz JF, de Oliveira RS, Santiago CS, Soares EM, Morielle-Versute E, Taboga SR, Beguelini MR. The marked dextro-dominance causes accentuated morphophysiological variations in the female reproductive organs of the bat Molossus molossus. Tissue Cell 2023; 85:102245. [PMID: 37856937 DOI: 10.1016/j.tice.2023.102245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/21/2023] [Accepted: 10/13/2023] [Indexed: 10/21/2023]
Abstract
Molossus molossus is an insectivorous molossid bat that is important in the control of nocturnal insects. It is the nominal and the most representative species of the family. However, there are few studies about its reproduction. Thus, this study aimed to evaluate variations of its female reproductive organs during the different reproductive phases. Twenty adult females, divided into four sample groups (non-reproductive, early and advanced pregnancy and lactation), were submitted to morphological and morphometric analyses. Results show that the female reproductive system of M. molossus is composed of ovaries, a short bicornuate uterus, slightly convoluted uterine tubes and vagina. The system presents a distinct morphofunctional asymmetry, with a marked dextro-dominance. The right ovaries of all analyzed groups (NON, P1, P2, and LAC) showed follicles at different stages of development, a large number of interstitial glands and a small, but persistent corpus luteum. Ovulation is simple, unilateral and preferential, occurring exclusively in the right ovary. Follicular development in the left ovary usually does not pass the secondary stage. Implantation is fundic and preferential, occurring exclusively in the right uterine horn. The placenta is formed with two distinct chorioallantoic portions, one diffuse endotheliochorial, which covers the entire uterine cavity and regresses in the final stages of pregnancy, and the principal discoidal hemochorial portion, formed in the implantation site. The uterine cervix presents a pseudostratified epithelium, while the vagina has a little keratinized stratified epithelium, which does not accentually vary in the different reproductive stages, but can disrupt and shed in some cases.
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Affiliation(s)
- Juliana F Ferraz
- Center of Biological and Health Science, UFOB - Univ. Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Rodrigo S de Oliveira
- Center of Biological and Health Science, UFOB - Univ. Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Cornélio S Santiago
- Center of Biological and Health Science, UFOB - Univ. Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Emília M Soares
- Center of Biological and Health Science, UFOB - Univ. Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Eliana Morielle-Versute
- Department of Zoology and Botany, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Sebastião R Taboga
- Department of Biology, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Mateus R Beguelini
- Center of Biological and Health Science, UFOB - Univ. Federal do Oeste da Bahia, Barreiras, Bahia, Brazil.
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de Lima Junior NB, Ferreira de Melo IM, da Silva FR, Antonio EA, de Aguiar Júnior FCA, dos Santos KRP, Teixeira VW, Teixeira ÁAC. Reproductive Stages and Ovarian Histophysiology in Artibeus planirostris (Chiroptera: Phyllostomidae) in the Dry and Rainy Months in a Municipality of the Mesoregion of the Mata Pernambucana, Northeastern Brazil. ACTA CHIROPTEROLOGICA 2021. [DOI: 10.3161/15081109acc2021.23.1.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Nivaldo B. de Lima Junior
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
| | - Ismaela M. Ferreira de Melo
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
| | - Fabricya R. da Silva
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
| | - Erivaldo A. Antonio
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
| | - Francisco C. A. de Aguiar Júnior
- Núcleo de Biologia, Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Rua Alto do Reservatório s/n, Bela Vista, 55608-680, Vitória de Santo Antão, PE, Brazil
| | - Katharine R. P. dos Santos
- Núcleo de Biologia, Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Rua Alto do Reservatório s/n, Bela Vista, 55608-680, Vitória de Santo Antão, PE, Brazil
| | - Valéria W. Teixeira
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
| | - Álvaro A. C. Teixeira
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
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Ocampo‐González P, López‐Wilchis R, Espinoza‐Medinilla EE, Rioja‐Paradela TM. A review of the breeding biology of Chiroptera. Mamm Rev 2021. [DOI: 10.1111/mam.12236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paola Ocampo‐González
- Programa de Doctorado en Ciencias en Biodiversiad y Conservación de Ecosistemas Tropicales Instituto de Ciencias Biológicas Universidad de Ciencias y Artes de Chiapas Libramiento Norte Poniente 1150, Colonia Lajas Maciel Tuxtla Gutiérrez Chiapas29039México
| | - Ricardo López‐Wilchis
- Departamento de Biología Universidad Autónoma Metropolitana‐Iztapalapa Av. San Rafael Atlixco 186, Col. Vicentina Ciudad de México09340México
| | - Eduardo E. Espinoza‐Medinilla
- Instituto de Ciencias Biológicas Universidad de Ciencias y Artes de Chiapas Libramiento Norte Poniente 1150, Colonia Lajas Maciel Tuxtla Gutiérrez Chiapas29039México
| | - Tamara M. Rioja‐Paradela
- Posgrado en Ciencias en Desarrollo Sustentable y Gestión de Riesgos Universidad de Ciencias y Artes de Chiapas Libramiento Norte Poniente 1150, Colonia Lajas Maciel Tuxtla Gutiérrez Chiapas29039México
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Beguelini MR, Santiago CS, Guerra LHA, Santos FCA, Góes RM, Morielle-Versute E, Taboga SR. The hormonal control of the uterus of the bat Myotis nigricans during its different reproductive phases: emphasis on progesterone and estradiol. Cell Tissue Res 2021; 384:211-229. [PMID: 33409655 DOI: 10.1007/s00441-020-03342-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/05/2020] [Indexed: 10/22/2022]
Abstract
Myotis nigricans is a species of bat from the Vespertilionidae family that is endemic of the Neotropical region. Its insectivorous feeding habit plus its large range of prey species, great geographical dispersion, wide colonies, and anthropomorphized behavior make this species an important ecological agent that acts in the control of nocturnal insects. Reproductively, M. nigricans presents geographic variations, having different patterns of reproduction according to its geographical location. Despite these extremely interesting characteristics, no more detailed study of the hormonal control of the reproduction of this species has been conducted. Therefore, the aim of the present study was to evaluate the variations in serum hormone concentrations and in uterine hormonal control of this bat 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 hormone dosage and immunohistochemical analyses. The results demonstrated that the uterus of M. nigricans is strongly regulated by the interaction/cross-talk between serum concentrations of estradiol (E2) and progesterone with their respective hormone receptors. Significant increases in the concentration of E2 and progesterone are needed to regulate the early pregnancy. The persistence of the corpus luteum throughout pregnancy is necessary, since its placenta does not express aromatase. The expressions of ERα and PR appear to be synchronized in order to coordinate a large portion of the processes that occur inside the uterus of M. nigricans during pregnancy and lactation.
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Affiliation(s)
- Mateus R Beguelini
- Center of Biological and Health Science, UFOB - Universidade Federal Do Oeste da Bahia, Barreiras, Bahia, Brazil.
| | - Cornélio S Santiago
- Center of Biological and Health Science, UFOB - Universidade Federal Do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Luiz H A Guerra
- Department of Biology, UNESP - University Estadual Paulista, São José Do Rio Preto, São Paulo, Brazil
| | - Fernanda C A Santos
- Department of Histology and Embryology, UFG - Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Rejane M Góes
- Department of Biology, UNESP - University Estadual Paulista, São José Do Rio Preto, São Paulo, Brazil
| | - Eliana Morielle-Versute
- Department of Zoology and Botany, UNESP - University Estadual Paulista, São José Do Rio Preto, São Paulo, Brazil
| | - Sebastião R Taboga
- Department of Biology, UNESP - University Estadual Paulista, São José Do Rio Preto, São Paulo, Brazil
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Morphophysiological variations of the female reproductive organs of the vespertilionid bat Myotis nigricans during its different reproductive phases. Theriogenology 2020; 158:121-137. [DOI: 10.1016/j.theriogenology.2020.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 08/03/2020] [Accepted: 09/06/2020] [Indexed: 11/23/2022]
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