Morphology and Ultrastructure of the Amazon River Dolphin (Inia geoffrensis) Spermatozoa
| Autor: | Amaral, Rodrigo S., Silva, Vera Maria Ferreira da, Valdez Domingos, Fab?ola Xochilt, Martin, Anthony Richard |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Adult
Male Microscopy Axoneme Inia Geoffrensis Cell Ultrastructure Animal Dolphins Spermatozoon Morphological Trait Nonhuman Anatomy And Histology Spermatozoa Chromatin Microscopy Electron Ultrastructure Priority Journal Spermatozoon Tail Microscopy Electron Scanning Animals Mitochondrion Toothed Whale Cytology Acrosome |
| Zdroj: | Repositório Institucional do INPA Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
| Popis: | The spermatozoa from seven adult Amazon river dolphins (Inia geoffrensis, CETACEA: INIIDAE) were analyzed by light and electron microscopy. The spermatozoa showed an elongated ellipsoid shaped head and a long tail with a well distinguishable midpiece. The head spermatozoa have a smooth surface like other odontocetes examined, with the exception of the Delphinidae family. The mean dimensions of the spermatozoa were within the range already reported for other cetaceans. The spermatozoa midpiece, as in other cetaceans, showed a random pattern of mitochondria, different from that described for other mammals. Further studies of sperm morphology of a wider spectrum of cetacean families could help to better understand the reproductive biology of these animals and the intergeneric and intrageneric relationships among them, as well as, among other mammals. Anat Rec, 300:1519–1523, 2017. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc. |
| Databáze: | OpenAIRE |
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