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Type: Journal article
Title: Sperm morphology in the Malagasy rodents (Muroidea: nesomyinae)
Author: Ding, X.
Leigh, C.
Goodman, S.
Bedford, J.
Carleton, M.
Breed, W.
Citation: Journal of Morphology, 2010; 271(12):1493-1500
Publisher: Wiley-Liss
Issue Date: 2010
ISSN: 0362-2525
Statement of
Xiaodan Ding, C.M. Leigh, S.M. Goodman, J.M. Bedford, M.D. Carleton, and W.G. Breed
Abstract: The morphology of the spermatozoon of representative species of the subfamily Nesomyinae (Muroidea: Nesomyidae), a monophyletic group of rodents endemic to Madagascar, was examined by light and electron microscopy to determine the sperm head shape and tail length across the species. Marked interspecific differences were found to occur in both the form of the sperm head and length of the tail. The species that possess a sperm head with an apical hook, which largely contains acrosomal material, generally displayed longer sperm tails, and a species with a spatulate sperm head had the shortest tail. The association between sperm head shape and tail length mirrors that previously found in Eurasian and Australasian murine rodents. Thus, the repeated association between sperm head shape and tail length across these groups of muroid rodents clearly indicates a functional relationship between these two features. A comparison of sperm morphology of the nesomyines to that of related muroid rodents on the mainland of Africa suggests that the possession of an apical hook is the ancestral condition.
Keywords: sperm morphology; rodents; Nesomyinae; Madagascar
Rights: Copyright © 2010 Wiley-Liss, Inc.
RMID: 0020101428
DOI: 10.1002/jmor.10889
Appears in Collections:Environment Institute publications
Anatomical Sciences publications

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