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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/9267

Title: Ontogeny of the Complex Sperm in the Macrostomid Flatworm Macrostomum lignano (Macrostomorpha, Rhabditophora)
Authors: Willems, Maxime
Leroux, Frederic
Claeys, Myriam
Boone, Mieke
Mouton, Stijn
Borgonie, Gaetan
Issue Date: 2009
Publisher: WILEY-LISS
Citation: JOURNAL OF MORPHOLOGY, 270(2). p. 162-174
Abstract: Spermiogenesis in Macrostomum lignano (Macrostomorpha, Rhabditophora) is described using light- and electron microscopy of the successive stages in sperm development. Ovoid spermatids develop to highly complex, elongated sperm possessing an undulating distal (anterior) process (or "feeler"), bristles, and a proximal (posterior) brush. In particular, we present a detailed account of the morphology and ontogeny of the bristles, describing for the first time the formation of a highly specialized bristle complex consisting of several parts. This complex is ultimately reduced when sperm are mature. The implications of the development of this bristle complex on both sperm maturation and the evolution and function of the bristles are discussed. The assumed homology between bristles and flagellae questioned. J. Morphol. 270:162-174, 2009. (C) 2008 Wiley-Liss, Inc.
Notes: [Willems, Maxime; Leroux, Frederic; Claeys, Myriam; Boone, Mieke; Mouton, Stijn; Borgonie, Gaetan] Univ Ghent, Nematol Sect, Dept Biol, B-9000 Ghent, Belgium. [Artois, Tom] Hasselt Univ, Res Grp Biodivers Phylogeny & Populat Studies, Ctr Environm Sci, B-3590 Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/9267
DOI: 10.1002/jmor.10675
ISI #: 000262901900003
ISSN: 0362-2525
Category: A1
Type: Journal Contribution
Validation: ecoom, 2010
Appears in Collections: Research publications

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