Interspecific variation of sperm morphology in the Australian rodent genus Zyzomys

William G. Breed; Chris M. Leigh; H. Robertson; Lisa Mantellato; C. Lambert; Anne Jequier; P. Matson

doi:10.1111/j.1463-6395.2007.00277.x

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Interspecific variation of sperm morphology in the Australian rodent genus Zyzomys

Journal article

Peer reviewed

Interspecific variation of sperm morphology in the Australian rodent genus Zyzomys

William G. Breed, Chris M. Leigh, H. Robertson, Lisa Mantellato, C. Lambert, Anne Jequier and P. Matson

Acta Zoologica, Vol.88(3), pp.257-263

07/2007

DOI: https://doi.org/10.1111/j.1463-6395.2007.00277.x

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Abstract

The sperm head morphology and tail length of two species of Australian rock rats, Zyzomys argurus and Zyzomys pedunculatus, are presented. In Z. argurus the sperm head has an apical hook together with two ventral processes extending from the upper concave surface that are largely composed of cytoskeletal material, and the sperm tail is about 135 μm in length. By contrast, in Z. pedunculatus the sperm head is paddle-shaped with the nucleus capped by an acrosome that has a large apical segment and is surrounded by a thin layer of cytoskeletal material, and the sperm tail is only around 85 μm in length. Since the structure of the spermatozoon of Z. argurus is similar to that of most of the old endemic Australian rodents it is presumed to be the ancestral condition within the Zyzomys genus with that of Z. pedunculatus being highly derived and showing convergence with the sperm structure in some other orders of mammals.

Details

Title: Interspecific variation of sperm morphology in the Australian rodent genus Zyzomys
Authors/Creators: William G. Breed (Author/Creator) - The University of Adelaide
Chris M. Leigh (Author/Creator) - The University of Adelaide
H. Robertson (Author/Creator) - Murdoch University
Lisa Mantellato (Author/Creator) - Perth Zoo, South Perth WA 6951,
C. Lambert (Author/Creator) - Perth Zoo, South Perth WA 6951,
Anne Jequier (Author/Creator) - The University of Western Australia
P. Matson (Author/Creator) - Murdoch University
Publication Details: Acta Zoologica, Vol.88(3), pp.257-263
Publisher: Blackwell Publishing
Identifiers: 991005543635407891
Copyright: © 2007 The Authors.
Murdoch Affiliation: School of Veterinary and Biomedical Sciences
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 1 Clinical & Life Sciences; 1.81 Reproductive Biology; 1.81.176 Male Fertility
Web Of Science research areas: Anatomy & Morphology; Zoology
ESI research areas: Plant & Animal Science