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Histological description of the reproductive tract of male and female hatchlings of the Magdalena river turtle (Podocnemis lewyana). by Sánchez Ospina, Andrés Camilo; Rodríguez, Berardo; Ceballos, Claudia Patricia is a Agricultural and Biological Sciences article available to read on EtoBox.

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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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Author

Sánchez Ospina, Andrés Camilo; Rodríguez, Berardo; Ceballos, Claudia Patricia

Publisher

Universidad Nacional de Colombia; Bogotá: Universidad Nacional de Colombia Departamento de Biología, 2005- (ISSN 0120-548X)

Published

2014

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)