Ovarian histology and follicular development of the snake Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae)
The ovary is a dynamic structure that changes seasonally throughout the reproductive cycle of females. Follicular development occurs in two stages: previtellogenesis and vitellogenesis, where significant changes occur on oocytes and follicular epithelium structure. The knowledge of these events is e...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Facultad de Ciencias Exactas y Naturales y Agrimensura
2024
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/fce/article/view/7408 |
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I48-R154-article-74082024-11-07T21:29:58Z Ovarian histology and follicular development of the snake Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae) Histología ovárica y desarrollo folicular de la serpiente Amerotyphlops Brongersmianus (Scolecophidia: Typhlopidae) Sandoval, María Teresa Ruiz García, José Augusto Álvarez, Blanca Beatriz Follicle development Ovary Oogenesis Follicular atresia Squamata Desarrollo folicular Ovario Ovogénesis Atresia folicular Squamata The ovary is a dynamic structure that changes seasonally throughout the reproductive cycle of females. Follicular development occurs in two stages: previtellogenesis and vitellogenesis, where significant changes occur on oocytes and follicular epithelium structure. The knowledge of these events is essential to interpret the reproductive characteristics of a species. Based on specimens belonging to a Herpetological Collection, in this work, the ovarian and follicular morphology of juvenile and adult females of Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae), a semifossorial species inhabiting in northeastern of Argentina, was described. Ovaries of the juvenile females presented germinal beds with oogonia and oocytes in follicles in early stages of previtellogenesis. Adult females showed ovaries with follicles in different stages of previtellogenesis and vitellogenesis, germinal beds and atretic follicles. This work is the first description of the ovarian morphology of A. brongersmianus and reveals a morphological pattern similar to other species of the Order Squamata. El ovario es una estructura muy dinámica la cual se modifica estacionalmente a lo largo del ciclo reproductor de las hembras. El desarrollo folicular se produce en dos etapas: previtelogénica y vitelogénica donde ocurren importantes cambios en la estructura de los ovocitos, así como también del epitelio folicular. El conocimiento de estos eventos es fundamental para interpretar las características reproductoras de una especie. Basado en ejemplares pertenecientes a una Colección Herpetológica, en este trabajo se describió la morfología ovárica y folicular de hembras juveniles y adultas de la serpiente Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae), una especie con hábitos semifosoriales, común en el nordeste de Argentina. Los ovarios de las hembras juveniles presentaron nidos germinales con ovogonias y ovocitos en folículos en estadios iniciales de la previtelogénesis. Los ovarios de las hembras adultas presentaron folículos es diferentes estadios de la previtelógenesis y vitelogénesis, nidos germinales y folículos en proceso de atresia. Este trabajo representa la primera contribución al conocimiento de la morfología ovárica de A. brongersmianus y pone de manifiesto un patrón morfológico similar al de otras especies estudiadas del Orden Squamata. Facultad de Ciencias Exactas y Naturales y Agrimensura 2024-05-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/fce/article/view/7408 10.30972/fac.3417408 FACENA; Vol. 34 Núm. 1 (2024); 15-36 1851-507X 0325-4216 spa https://revistas.unne.edu.ar/index.php/fce/article/view/7408/7008 |
| institution |
Universidad Nacional del Nordeste |
| institution_str |
I-48 |
| repository_str |
R-154 |
| container_title_str |
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) |
| language |
Español |
| format |
Artículo revista |
| topic |
Follicle development Ovary Oogenesis Follicular atresia Squamata Desarrollo folicular Ovario Ovogénesis Atresia folicular Squamata |
| spellingShingle |
Follicle development Ovary Oogenesis Follicular atresia Squamata Desarrollo folicular Ovario Ovogénesis Atresia folicular Squamata Sandoval, María Teresa Ruiz García, José Augusto Álvarez, Blanca Beatriz Ovarian histology and follicular development of the snake Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae) |
| topic_facet |
Follicle development Ovary Oogenesis Follicular atresia Squamata Desarrollo folicular Ovario Ovogénesis Atresia folicular Squamata |
| author |
Sandoval, María Teresa Ruiz García, José Augusto Álvarez, Blanca Beatriz |
| author_facet |
Sandoval, María Teresa Ruiz García, José Augusto Álvarez, Blanca Beatriz |
| author_sort |
Sandoval, María Teresa |
| title |
Ovarian histology and follicular development of the snake Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae) |
| title_short |
Ovarian histology and follicular development of the snake Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae) |
| title_full |
Ovarian histology and follicular development of the snake Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae) |
| title_fullStr |
Ovarian histology and follicular development of the snake Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae) |
| title_full_unstemmed |
Ovarian histology and follicular development of the snake Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae) |
| title_sort |
ovarian histology and follicular development of the snake amerotyphlops brongersmianus (scolecophidia: typhlopidae) |
| description |
The ovary is a dynamic structure that changes seasonally throughout the reproductive cycle of females. Follicular development occurs in two stages: previtellogenesis and vitellogenesis, where significant changes occur on oocytes and follicular epithelium structure. The knowledge of these events is essential to interpret the reproductive characteristics of a species. Based on specimens belonging to a Herpetological Collection, in this work, the ovarian and follicular morphology of juvenile and adult females of Amerotyphlops brongersmianus (Scolecophidia: Typhlopidae), a semifossorial species inhabiting in northeastern of Argentina, was described. Ovaries of the juvenile females presented germinal beds with oogonia and oocytes in follicles in early stages of previtellogenesis. Adult females showed ovaries with follicles in different stages of previtellogenesis and vitellogenesis, germinal beds and atretic follicles. This work is the first description of the ovarian morphology of A. brongersmianus and reveals a morphological pattern similar to other species of the Order Squamata.
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| publisher |
Facultad de Ciencias Exactas y Naturales y Agrimensura |
| publishDate |
2024 |
| url |
https://revistas.unne.edu.ar/index.php/fce/article/view/7408 |
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