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Arthropod Struct Dev. 2014 Jul;43(4):257-90. doi: 10.1016/j.asd.2014.04.002. Epub 2014 Apr 13.

Overview on spermatogenesis and sperm structure of Hexapoda.

Author information

1
Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy. Electronic address: dallai@unisi.it.

Abstract

The main characteristics of the sperm structure of Hexapoda are reported in the review. Data are dealing with the process of spermatogenesis, including the aberrant models giving rise to a reduced number of sperm cells. The sperm heteromorphism and the giant sperm exceeding the usual sperm size for length and width are considered. The characteristics of several components of a typical insect sperm are described: the plasma membrane and its glycocalyx, the nucleus, the centriole region and the centriole adjunct, the accessory bodies, the mitochondrial derivatives and the flagellar axoneme. Finally, a detailed description of the main sperm features of each hexapodan group is given with emphasis on the flagellar components considered to have great importance in phylogenetic considerations. This study may be also useful to those requiring an introduction to hexapod reproduction.

KEYWORDS:

Insect sperm ultrastructure; Phylogenesis; Spermatogenesis

PMID:
24732045
DOI:
10.1016/j.asd.2014.04.002
[Indexed for MEDLINE]
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