Sperm morphology in five species of cicadettine cicadas (Hemiptera: Cicadomorpha: Cicadidae).

  title={Sperm morphology in five species of cicadettine cicadas (Hemiptera: Cicadomorpha: Cicadidae).},
  author={Abraham Simbarashe Chawanji and Alan N Hodgson and Martin H. Villet},
  journal={Tissue \& cell},
  volume={38 6},

Spermiogenesis in three species of cicadas (Hemiptera: Cicadidae)

Interspecific variations in chromatin condensation patterns and the number of microtubule layers encircling the spermatid nucleus during spermiogenesis were noted.

Sperm ultrastructure and spermatodesm morphology of the spittle bug Locris transversa (Thunberg 1822) (Hemiptera: Cercopidae)

Compared to other members of the Cicadomorpha, the spermatozoa and spermatodesms of cercopids so far studied have some structural features in common with cicadellids and others in commonWith cicadas; therefore, if sperm features are to be useful in phylogenetic studies of cicadomorphs, attention must be given to examining key taxa to establish which character states are plesiomorphic or apomorphic.

Ultrastructure of spermatozoa in three cicada species from China (Hemiptera, Cicadomorpha, Cicadidae)

The study of sperm ultrastructure, particularly in the species of Tibicininae and Sinosenini, expands the spermatological research of Cicadidae and provides more information for phylogenetic analysis of CicAdidae.

Morphostructural investigation on spermatozoa and sperm bundles of the leafhopper Balclutha brevis Lindberg 1954 (Hemiptera: Deltocephalinae)

Morphostructural investigations on male gametes and sperm bundles of Balclutha brevis Lindberg 1954, allochthonous species in Sicily and in mainland Europe, were carried out by light and electron

Sperm ultrastructure of Pochazia shantungensis (Chou & Lu) and Ricania speculum (Walker) (Hemiptera, Ricaniidae) with phylogenetic implications

Current evidence shows that ricaniid species have D-shaped mitochondrial derivatives in cross-section and a serrated electron-dense region, and the phylogenetic relationship of Fulgoroidea with other superfamilies in Auchenorrhyncha is briefly discussed.



Comparative ultrastructure of ant spermatozoa (formicidae: Hymenoptera)

Spermatozoa obtained from A. versicolor, a species that is known to store and utilize viable sperm from this supply for over 10 years, show greater development of the mitochondrial derivatives than do the other species.

Sperm ultrastructure of the honey bee (Apis mellifera) (L) (Hymenoptera, Apidae) with emphasis on the nucleus-flagellum transition region.

The structure identified here as a centriolar adjunct is homologous to that observed in Formicidae, Ichneumonoidea and Symphyta and therefore, very probably, it is common to most Hymenoptera.

Sperm ultrastructure of Mantophasma zephyra (Insecta, Mantophasmatodea)

A cladistic analysis based on sperm features indicates a close relationship of Mantophasmatodea with Mantodea and Mantophasma zephyra spermatozoa.

The ultrastructure of the spermatozoa of bufonid and hylid frogs (Anura, Amphibia): implications for phylogeny and fertilization biology

There is no spermatological evidence supporting the recognition of Australian hylids as a group distinct from the remaining eubufonoids and, specifically, from the Hylidae, and evidence is presented in support of the tentative proposal that the Lissamphibia were primitively internally fertilizing.

The sperm centriole persists during early egg cleavage in the insect Chrysopa carnea (Neuroptera, Chrysopidae).

The giant centriole of the sperm of Chrsyopa carnea persists in the fertilized egg, and the assumption that the mature spermatozoa of insects contain no true centrioles is not valid, at least for Chrysopa.