Spermatic cell characteristics in Gymnotiformes (Teleostei: Ostariophysi) and their phylogenetic meaning

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dc.contributor.authorFranca, G. F. [UNESP]
dc.contributor.authorOliveira, C. [UNESP]
dc.contributor.authorQuagio-Grassiotto, I. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:52:20Z
dc.date.available2014-05-20T13:52:20Z
dc.date.issued2009-12-01
dc.description.abstractSpermatic characteristics were studied in representatives of the families Rhamphichthyidae, Sternopygidae and Apteronotidae, and compared with pre-existent data from Gymnotidae and Hypopomidae. The spermatic characteristics found in Gymnotiformes were also compared with data from other Ostariophysi spermatic cells. The spermatic characteristics as the type of spermiogenesis and the structural pattern of the sperm, considering nuclear form, pattern of chromatin condensation, nuclear fossa and its relation with the centriolar complex, form and localization of mitochondria, form of midpiece, presence or absence of cytoplasmic canal and cytoplasmic sleeve, and flagellar fins were utilized. The comparative analysis of the spermatic cell of Gymnotiformes better support the previous proposals for the order considering Gymnotidae as a derived group, than the more recent ones that located Gymnotidae in a basal position as the sister group of the remaining Gymnotiformes. Regarding the Ostariophysi, the comparative analyses based on the spermatic cell characteristics is consistent with a recent systematic proposal that consider Gymnotiformes as a sister group of Characiformes. (C) 2009 The Authors Journal compilation (C) 2009 The Fisheries Society of the British Islesen
dc.description.affiliationUniv Estadual Paulista, Dept Morfol, Inst Biociencias, BR-18618000 São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Biol, Programa Posgrad Biol Celular & Estrutural, BR-13083863 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Morfol, Inst Biociencias, BR-18618000 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biol, Programa Posgrad Biol Celular & Estrutural, BR-13083863 São Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent2226-2243
dc.identifierhttp://dx.doi.org/10.1111/j.1095-8649.2009.02439.x
dc.identifier.citationJournal of Fish Biology. Malden: Wiley-blackwell, v. 75, n. 9, p. 2226-2243, 2009.
dc.identifier.doi10.1111/j.1095-8649.2009.02439.x
dc.identifier.issn0022-1112
dc.identifier.urihttp://hdl.handle.net/11449/18705
dc.identifier.wosWOS:000273897100004
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Fish Biology
dc.relation.ispartofjcr1.702
dc.relation.ispartofsjr0,822
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectevolutionen
dc.subjectfreshwater fishen
dc.subjectspermatozoaen
dc.subjectspermiogenesisen
dc.subjectsystematicen
dc.titleSpermatic cell characteristics in Gymnotiformes (Teleostei: Ostariophysi) and their phylogenetic meaningen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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