Ultrastructural analysis of spermiogenesis in the neotropical cichlid Cichla kelberi Kullander & Ferreira, 2006 (Perciformes: Cichlidae)

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dc.contributor.authorde Siqueira-Silva, D. H. [UNESP]
dc.contributor.authorda Silva Costa, R. [UNESP]
dc.contributor.authorNinhaus-Silveira, A. [UNESP]
dc.contributor.authorVicentini, C. A. [UNESP]
dc.contributor.authorVerissimo-Silveira, R. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:25:51Z
dc.date.available2014-05-20T13:25:51Z
dc.date.issued2012-12-01
dc.description.abstractIn the Neotropical cichlid Cichla kelberi the spermiogenesis appears to be of the cystic type and is characterized by gradual chromatin condensation in juxtaposed clusters, nuclear rotation (with the flagellum perpendicularly to the nucleus), and consequent nuclear fossa formation. Besides, there is cytoplasma migration to the nuclear base while eliminating the cytoplasmic residual mass. The heads of the spermatozoa are round, with approximately 1.87 mu m in diameter; the nucleus has clusters juxtaposed of condensed chromatin. The nuclear fossa in single arc shape is moderate and slightly eccentric to the nuclear base. The midpiece is short and presents a cytoplasmic sheath, which dilated in its extremes. The mitochondria are spherical or slightly elongated. The flagellum presents the classical axoneme 9 + 2 and one pair of fins. The Type I C. kelberi spermatozoon has its flagellum perpendicularly positioned in relation to the nucleus base. The presence of only one flagellum characterize it as the basic spermatozoon in teleost, known as single anacrosomal aquasperm spermatozoon. Besides the patterns of previously cited characteristics between its representatives, the cytoplasmic sheath and flagellum fins presence can be consider as characteristics of the Cichla genus.en
dc.description.affiliationUniv Estadual Paulista, UNESP, Dept Biol & Zootecnia, Lab Ictiol Neotrop,LINEO, BR-15385000 São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, UNESP, Programa Posgrad Biol Anim, BR-15385000 São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, UNESP, Dept Ciencias Biol, LAMOA,Lab Morfol Organismos Aquat, BR-15385000 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Dept Biol & Zootecnia, Lab Ictiol Neotrop,LINEO, BR-15385000 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Programa Posgrad Biol Anim, BR-15385000 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Dept Ciencias Biol, LAMOA,Lab Morfol Organismos Aquat, BR-15385000 São Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 09/02891-4
dc.description.sponsorshipIdFAPESP: 10/00988-8
dc.format.extent878-882
dc.identifierhttp://dx.doi.org/10.1111/jai.12059
dc.identifier.citationJournal of Applied Ichthyology. Hoboken: Wiley-blackwell, v. 28, n. 6, p. 878-882, 2012.
dc.identifier.doi10.1111/jai.12059
dc.identifier.issn0175-8659
dc.identifier.urihttp://hdl.handle.net/11449/8228
dc.identifier.wosWOS:000310976600004
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Applied Ichthyology
dc.relation.ispartofjcr0.774
dc.relation.ispartofsjr0,532
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleUltrastructural analysis of spermiogenesis in the neotropical cichlid Cichla kelberi Kullander & Ferreira, 2006 (Perciformes: Cichlidae)en
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell
unesp.author.lattes9568814835325380[3]
unesp.author.lattes3150094336796923[4]
unesp.author.orcid0000-0003-0738-0862[3]
unesp.author.orcid0000-0002-6816-033X[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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Artigos - Biologia e Zootecnia - FEIS