Cytogenetic analysis of five Hypostomus species (Siluriformes, Loricariidae)

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dc.contributor.authorMartinez, Emanuel Ricardo Monteiro [UNESP]
dc.contributor.authorZawadzki, Claudio Henrique
dc.contributor.authorForesti, Fausto [UNESP]
dc.contributor.authorOliveira, Claudio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.date.accessioned2014-05-20T13:51:35Z
dc.date.available2014-05-20T13:51:35Z
dc.date.issued2011-01-01
dc.description.abstractIn this work, we analyzed the karyotypes of five species. Hypostomus cf. heraldoi, from the Mogi-Guaçu River, had 2n = 72 chromosomes, with a nucleolar organizer region (NOR) in one chromosomal pair. Hypostomus regani, from the Mogi-Guaçu River had 2n = 72 chromosomes with NORs in two chromosomal pairs. Hypostomus sp., from the Mogi-Guaçu River basin, had 2n = 68 chromosomes, with NORs in two chromosomal pairs. Hypostomus aff. agna, from Cavalo Stream, had 2n = 74 chromosomes with NORs in two chromosomal pairs. Hypostomus cf. topavae, from Carrapato Stream, had 2n = 80 chromosomes, with NORs in two chromosomal pairs. Hypostomus species showed marked diversity in the karyotypic formula, which suggested the occurrence of several Robertsonian rearrangements and pericentric inversions during the evolutionary history of this genus. This hypothesis was supported by the occurrence of a large number of uniarmed chromosomes and multiple NORs in a terminal position in most species and may be a derived condition in the Loricariidae.en
dc.description.affiliationUniversidade Estadual Paulista Instituto de Biociências Departamento de Morfologia
dc.description.affiliationUniversidade Estadual de Maringá (UEM) Departamento de Biologia
dc.description.affiliationUnespUniversidade Estadual Paulista Instituto de Biociências Departamento de Morfologia
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.description.sponsorshipIdCNPq: 140644/2005-9
dc.description.sponsorshipIdCNPq: 300314/2003-5
dc.description.sponsorshipIdCNPq: 306066/2009-2
dc.format.extent562-568
dc.identifierhttp://dx.doi.org/10.1590/S1415-47572011005000038
dc.identifier.citationGenetics and Molecular Biology. Sociedade Brasileira de Genética, v. 34, n. 4, p. 562-568, 2011.
dc.identifier.doi10.1590/S1415-47572011005000038
dc.identifier.fileS1415-47572011000400006.pdf
dc.identifier.issn1415-4757
dc.identifier.lattes0804793944846367
dc.identifier.scieloS1415-47572011000400006
dc.identifier.urihttp://hdl.handle.net/11449/18452
dc.identifier.wosWOS:000297789600006
dc.language.isoeng
dc.publisherSociedade Brasileira de Genética
dc.relation.ispartofGenetics and Molecular Biology
dc.relation.ispartofjcr1.493
dc.relation.ispartofsjr0,638
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subjectchromosomesen
dc.subjectevolutionen
dc.subjectHypostominaeen
dc.subjectNeotropical fishen
dc.subjectNORen
dc.titleCytogenetic analysis of five Hypostomus species (Siluriformes, Loricariidae)en
dc.typeArtigo
unesp.author.lattes0804793944846367
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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Artigos - Morfologia - IBB