Descriptions of the mature spermatozoa of the lizards Crotaphytus bicinctores, Gambelia wislizenii (Crotaphytidae), and Anolis carolinensis (Polychrotidae) (Reptilia, Squamata, Iguania)

Scheltinga, DM, Jamieson, BGM, Espinoza, RE and Orrell, KS (2001) Descriptions of the mature spermatozoa of the lizards Crotaphytus bicinctores, Gambelia wislizenii (Crotaphytidae), and Anolis carolinensis (Polychrotidae) (Reptilia, Squamata, Iguania). Journal of Morphology, 247 2: 160-171. doi:10.1002/1097-4687(200102)247:2<160::AID-JMOR1010>3.0.CO;2-R


Author Scheltinga, DM
Jamieson, BGM
Espinoza, RE
Orrell, KS
Title Descriptions of the mature spermatozoa of the lizards Crotaphytus bicinctores, Gambelia wislizenii (Crotaphytidae), and Anolis carolinensis (Polychrotidae) (Reptilia, Squamata, Iguania)
Journal name Journal of Morphology   Check publisher's open access policy
ISSN 0362-2525
Publication date 2001
Sub-type Article (original research)
DOI 10.1002/1097-4687(200102)247:2<160::AID-JMOR1010>3.0.CO;2-R
Volume 247
Issue 2
Start page 160
End page 171
Total pages 12
Editor F.W Harrison
Place of publication New York
Publisher Wiley-Liss Inc
Collection year 2001
Language eng
Subject C1
270503 Animal Anatomy and Histology
780105 Biological sciences
Abstract The spermatozoa of Crotaphytus bicinctores and Gambelia wislizenii (Crotaphytidae), and Anolis carolinensis (Polychrotidae) exhibit the squamate autapomorphies of a single perforatorium extending anteriorly from the apical tip of the paracrystalline subacrosomal cone, the presence of an epinuclear electron-lucent region, and extension of the fibrous sheath into the midpiece. Crotaphytid sperm differ from those of polychrotids in several respects, including: the structure of the perforatorium, the size of the epinuclear electron-lucent region, aspects of the acrosome complex, the arrangement and structure of intermitochondrial dense bodies, and in the distance the fibrous sheath extends into the midpiece. The sperm of C. bicinctores, G. wislizenii, and A. carolinensis are most similar to those of the agamids and phrynosomatids examined to date. No spermatozoal autapomorphies for Crotaphytidae or Polychrotidae were found. The condition of having the intermitochondrial dense bodies arranged in regular incomplete rings is tentatively defined as a synapomorphy of Iguania (although modified in Chamaeleonidae). Spermatozoal ultrastructure offers no characters that justify the separation of Iguanidae (sensu late) into several separate families. (C) 2001 Wiley-Liss, Inc.
Keyword Anatomy & Morphology
Crotaphytus
Gambelia
Crotaphytidae
Anolis
Polychrotidae
Iguania
Spermatozoa
Phylogeny
Ultrastructure
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 12 times in Thomson Reuters Web of Science Article | Citations
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Created: Tue, 14 Aug 2007, 16:17:12 EST