Spermiogenesis in three species of cicadas (Hemiptera: Cicadidae)

Chawanji, A.S. and Hodgson, A.N. and Villet, M.H. and Sanborn, A.F. and Phillips, P.K. (2007) Spermiogenesis in three species of cicadas (Hemiptera: Cicadidae). Acta Zoologica, 88 (4). pp. 337-348. ISSN 0001-7272

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Official URL: doi: 10.1111/j.1463-6395.2007.00285.x

Abstract

Spermiogenesis in three species of cicadas representing one cicadettine (Monomatapa matoposa Boulard) and two cicadines (Diceroprocta biconica [Walker] and Kongota punctigera [Walker]) was investigated by light and electron microscopy. Although spermiogenesis was occurring in the testis of adult males of all species, earlier spermiogenic stages were observed in D. biconica only. While spermiogenesis was similar to that described for other insects, some differences were noted. For example granular material did not assemble around the centriole to form a centriolar adjunct but did accumulate in the cytoplasm of early spermatids adjacent to a region of the nuclear membrane where nuclear pores were aggregated. In late spermatids this material accumulated anterior to the mitochondrial derivatives in a developing postero-lateral nuclear groove. While this material has been named the ‘centriolar adjunct’ by previous authors, its formation away from the centriole raises questions about its true identity. Second, during acrosome maturation an ante-acrosomal region of cytoplasm develops. Although present in later spermatids, this region is lost in spermatozoa. Interspecific variations in chromatin condensation patterns and the number of microtubule layers encircling the spermatid nucleus during spermiogenesis were noted.

Item Type:Article
Additional Information:The definitive version is available at http://www3.interscience.wiley.com
Uncontrolled Keywords:adult; cytology; insect; maturation; mitochondrion; sperm; Centriolar adjunct; Chromatin condensation; Manchette; Nuclear pores; Proacrosomal granule; Cicadidae; Diceroprocta biconica; Hemiptera; Hexapoda
Subjects:Q Science > QH Natural history > QH301 Biology
Divisions:Faculty > Faculty of Science > Zoology & Entomology
ID Code:1920
Deposited By: Prof Martin Villet
Deposited On:13 Jul 2011 14:14
Last Modified:06 Jan 2012 16:21
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