HISTOLOGICAL DESCRIPTION OF THE REPRODUCTIVE SYSTEM OF MALE AND FEMALE HATCHLINGS OF THE MAGDALENA RIVER TURTLE (Podocnemis lewyana)
In this study we described the macroscopic and microscopic histology of the reproductive system of male and female Podocnemis lewyana neonates (3.5 months old). We found macroscopic differences in the morphology of the gonads between the sexes, with ovaries being twice as long as testes, and testes...
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Universidad Nacional de Colombia
2014-09-01
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doaj-94cfd2e885c648c19f7b136eea5acfa42021-08-09T23:35:11ZengUniversidad Nacional de ColombiaActa Biológica Colombiana0120-548X1900-16492014-09-0119310.15446/abc.v19n3.4233436352HISTOLOGICAL DESCRIPTION OF THE REPRODUCTIVE SYSTEM OF MALE AND FEMALE HATCHLINGS OF THE MAGDALENA RIVER TURTLE (Podocnemis lewyana)Andrés Camilo Sánchez Ospina0Berardo Rodríguez1Claudia Patricia Ceballos2Universidad de Antioquia - Facultad de Ciencias Agrarias - Escuela de Medicina VeterinariaUniversidad de Antioquia - Facultad de Ciencias Agrarias - Escuela de Medicina VeterinariaUniversidad de Antioquia - Facultad de Ciencias Agrarias - Escuela de Medicina Veterinaria In this study we described the macroscopic and microscopic histology of the reproductive system of male and female Podocnemis lewyana neonates (3.5 months old). We found macroscopic differences in the morphology of the gonads between the sexes, with ovaries being twice as long as testes, and testes being twice as wide as ovaries. Microscopically, we identified several immature elements, such as the lack of a muscle layer in the oviduct of females, and simple epithelia instead of pseudostratified epithelia in the oviduct and epididymis described in reptile adults. We also found a black pigment observed macroscopically in the mesovarium, and macroscopically and histologically in the epididymis. This pigment is consistent with the center of melano-macrophages described in other vertebrates. Finally we described a supporting mesenchymal structure, the appendage of the oviduct, which was much longer than what has been described in other Podocnemis species. https://revistas.unal.edu.co/index.php/actabiol/article/view/42334epididymishistologyovaryoviductpigmenttestis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Andrés Camilo Sánchez Ospina Berardo Rodríguez Claudia Patricia Ceballos |
spellingShingle |
Andrés Camilo Sánchez Ospina Berardo Rodríguez Claudia Patricia Ceballos HISTOLOGICAL DESCRIPTION OF THE REPRODUCTIVE SYSTEM OF MALE AND FEMALE HATCHLINGS OF THE MAGDALENA RIVER TURTLE (Podocnemis lewyana) Acta Biológica Colombiana epididymis histology ovary oviduct pigment testis |
author_facet |
Andrés Camilo Sánchez Ospina Berardo Rodríguez Claudia Patricia Ceballos |
author_sort |
Andrés Camilo Sánchez Ospina |
title |
HISTOLOGICAL DESCRIPTION OF THE REPRODUCTIVE SYSTEM OF MALE AND FEMALE HATCHLINGS OF THE MAGDALENA RIVER TURTLE (Podocnemis lewyana) |
title_short |
HISTOLOGICAL DESCRIPTION OF THE REPRODUCTIVE SYSTEM OF MALE AND FEMALE HATCHLINGS OF THE MAGDALENA RIVER TURTLE (Podocnemis lewyana) |
title_full |
HISTOLOGICAL DESCRIPTION OF THE REPRODUCTIVE SYSTEM OF MALE AND FEMALE HATCHLINGS OF THE MAGDALENA RIVER TURTLE (Podocnemis lewyana) |
title_fullStr |
HISTOLOGICAL DESCRIPTION OF THE REPRODUCTIVE SYSTEM OF MALE AND FEMALE HATCHLINGS OF THE MAGDALENA RIVER TURTLE (Podocnemis lewyana) |
title_full_unstemmed |
HISTOLOGICAL DESCRIPTION OF THE REPRODUCTIVE SYSTEM OF MALE AND FEMALE HATCHLINGS OF THE MAGDALENA RIVER TURTLE (Podocnemis lewyana) |
title_sort |
histological description of the reproductive system of male and female hatchlings of the magdalena river turtle (podocnemis lewyana) |
publisher |
Universidad Nacional de Colombia |
series |
Acta Biológica Colombiana |
issn |
0120-548X 1900-1649 |
publishDate |
2014-09-01 |
description |
In this study we described the macroscopic and microscopic histology of the reproductive system of male and female Podocnemis lewyana neonates (3.5 months old). We found macroscopic differences in the morphology of the gonads between the sexes, with ovaries being twice as long as testes, and testes being twice as wide as ovaries. Microscopically, we identified several immature elements, such as the lack of a muscle layer in the oviduct of females, and simple epithelia instead of pseudostratified epithelia in the oviduct and epididymis described in reptile adults. We also found a black pigment observed macroscopically in the mesovarium, and macroscopically and histologically in the epididymis. This pigment is consistent with the center of melano-macrophages described in other vertebrates. Finally we described a supporting mesenchymal structure, the appendage of the oviduct, which was much longer than what has been described in other Podocnemis species.
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topic |
epididymis histology ovary oviduct pigment testis |
url |
https://revistas.unal.edu.co/index.php/actabiol/article/view/42334 |
work_keys_str_mv |
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