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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleUltrastructure of spermatozoa of the lizard Ameiva ameiva, with considerations on polymorphism within the family Teiidae (Squamata)pt_BR
dc.contributor.authorGiugliano, LGpt_BR
dc.contributor.authorTeixeira, RDpt_BR
dc.contributor.authorColli, GRpt_BR
dc.contributor.authorBao, SNpt_BR
unicamp.author.emailsnbao@unb.brpt_BR
unicamp.authorUniv Brasilia, Dept Biol Celular, BR-70919970 Brasilia, DF, Brazil Univ Estadual Campinas, Dept Biol Celular, BR-13083970 Campinas, SP, Brazil Univ Brasilia, Dept Zool, BR-70919970 Brasilia, DF, Brazilpt_BR
dc.subjectultrastructurept_BR
dc.subjectspermatozoapt_BR
dc.subjectAmeiva ameivapt_BR
dc.subjectTeiidaept_BR
dc.subjectpolymorphismpt_BR
dc.subject.wosPhylogenetic Analysispt_BR
dc.subject.wosCharacterspt_BR
dc.subject.wosUtilitypt_BR
dc.subject.wosSpermiogenesispt_BR
dc.subject.wosSystematicspt_BR
dc.subject.wosSequencespt_BR
dc.subject.wosEvolutionpt_BR
dc.subject.wosAccuracypt_BR
dc.subject.wosReptiliapt_BR
dc.subject.wosDnapt_BR
dc.description.abstractA detailed description of sperm ultrastructure of the lizard Ameiva ameiva (Teiidae) is provided. Mature spermatozoa are characterized by: a depressed acrosome at the anterior portion; a unilateral ridge at the anterolateral portion; an acrosome vesicle divided into cortex and medulla; medulla divided into two regions with different electron-densities; paracrystalline subacrosomal material with radial organization in transverse section; a pointed prenuclear perforatorium; a stopper-like perforatorium base plate that appears embedded in the subacrosomal material; the presence of an epinuclear lucent zone surrounded by its own membrane; a large nuclear rostrum; round nuclear shoulders; a nuclear space at the nucleus tip; a bilateral stratified laminar structure; a central dense body within the proximal centriole; a short midpiece; an axonemal midpiece axial component; peripheral fibers 3 and 8 grossly enlarged at the anterior portion of axoneme; columnar mitochondria with linear cristae; solid dense bodies arranged as rings or spirals; a triangular-shaped annulus in transverse section; a fibrous sheath into the midpiece; a thin zone of cytoplasm at the anterior portion of the principal piece; and a slight decrease in diameter of the principal piece immediately after the annulus. Comparisons with Cnemidophorus sexlineatus and Micrablepharus maximiliani failed to identify unique sperm ultrastructure traits of Teiidae or Teiioidea (Teiidae + Gymnophthalmidae). High levels of polymorphism between Ameiva and Cnemidophorus, two closely related genera of the family Teiidae, were detected, suggesting that extensive sampling within squamate families is essential if sperm ultrastructure data are to be used in phylogenetic analyses at this taxonomic level. (C) 2002 Wiley-Liss, Inc.pt
dc.relation.ispartofJournal Of Morphologypt_BR
dc.relation.ispartofabbreviationJ. Morphol.pt_BR
dc.publisher.cityMaldenpt_BR
dc.publisher.countryEUApt_BR
dc.publisherWiley-blackwellpt_BR
dc.date.issued2002pt_BR
dc.date.monthofcirculationSEPpt_BR
dc.identifier.citationJournal Of Morphology. Wiley-blackwell, v. 253, n. 3, n. 264, n. 271, 2002.pt_BR
dc.language.isoenpt_BR
dc.description.volume253pt_BR
dc.description.issuenumber3pt_BR
dc.description.firstpage264pt_BR
dc.description.lastpage271pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.htmlpt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0362-2525pt_BR
dc.identifier.wosidWOS:000177189500006pt_BR
dc.identifier.doi10.1002/jmor.10002pt_BR
dc.date.available2014-11-16T10:39:24Z
dc.date.available2015-11-26T16:22:00Z-
dc.date.accessioned2014-11-16T10:39:24Z
dc.date.accessioned2015-11-26T16:22:00Z-
dc.description.provenanceMade available in DSpace on 2014-11-16T10:39:24Z (GMT). No. of bitstreams: 1 WOS000177189500006.pdf: 1836318 bytes, checksum: 83a1805eeff0b92983ef6b563950d6cc (MD5) Previous issue date: 2002en
dc.description.provenanceMade available in DSpace on 2015-11-26T16:22:00Z (GMT). No. of bitstreams: 2 WOS000177189500006.pdf: 1836318 bytes, checksum: 83a1805eeff0b92983ef6b563950d6cc (MD5) WOS000177189500006.pdf.txt: 32692 bytes, checksum: 0b5a30a85896ca6a56abf089563808fc (MD5) Previous issue date: 2002en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/73351pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/73351
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/73351-
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