Spermatogenesis in mosquitoes (Diptera: Culicidae).
An ultrastructural study of spermatogenesis has been carried out on 18 species of mosquitoes of the Anophelinae, Culicinae and Toxorhynchitinae sub-families. In this spermatogenesis, which follows a classical way, primordial cells, primary and secondary spermatogonia, as well as primary and secondary spermatocysts are considered. We have identified 9 stages of development all along the spermiogenesis. This process ends up with the formation of a needle-like spermatozoon showing head and tail regions. After a treatment with tannic acid, the protofilaments of the axoneme of Culex tigripes are counted. For the first time we have carried out a complete study of spermatogenesis in mosquitoes.
Ndiaye
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Department of Animal Biology, Faculty of Sciences and Techniques, Cheikh Anta Diop University, Dakar, Senegal.
Mattei
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Thiaw
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D000330:Aedes / Q000502:physiology / Q000648:ultrastructure; D000818:Animals; D000852:Anopheles / Q000502:physiology / Q000648:ultrastructure; D016922:Cellular Senescence; D003465:Culex / Q000502:physiology / Q000648:ultrastructure; D009033:Culicidae / Q000145:classification / Q000502:physiology* / Q000648:ultrastructure; D005404:Fixatives / Q000494:pharmacology; D047348:Hydrolyzable Tannins / Q000494:pharmacology; D008297:Male; D008854:Microscopy, Electron; D015388:Organelles / Q000648:ultrastructure; D013045:Species Specificity; D013091:Spermatogenesis; D013094:Spermatozoa / Q000187:drug effects / Q000648:ultrastructure*; D013737:Testis / Q000648:ultrastructure
D005404:Fixatives; D047348:Hydrolyzable Tannins