A biflagellate spermatozoon in the African bonytongue Heterotis niloticus (Teleostei,Osteoglossidae) |
| |
Authors: | Xavier Mattei Bernard Marchand Yann Quilichini |
| |
Affiliation: | 1. Université de Corse, Campus Grimaldi Bât 018, Corte, France;2. UMR SPE 6134 CNRS - Université de Corse, Campus Grimaldi Bât 018, Corte, France |
| |
Abstract: | In this transmission electron microscopy study, we describe the ultrastructure of the spermatozoon of Heterotis niloticus (Osteoglossiformes), which is distinguished by having two flagella. Our investigation also highlights the great diversity of sperm cell structures observed across osteoglossiform families, such as aflagellate (Gymnarchidae, Mormyridae), monoflagellate (Notopteridae, Pantodontidae) and biflagellate spermatozoa. As biflagellate spermatozoa are rare in vertebrates, we also summarize the orders and families known to possess this ultrastructural character, most of which are fishes. |
| |
Keywords: | fish Heterotis niloticus Osteoglossiformes sperm cell TEM ultrastructure |
|
|