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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/18683
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dc.contributor.authorMachado, Santos Natalia-
dc.contributor.authorFerreira-Neto, Maressa-
dc.contributor.authorBakkali, Mohammed-
dc.contributor.authorVicari, Marcelo Ricardo-
dc.contributor.authorArtoni, Roberto Ferreira-
dc.contributor.authorde Oliveira, Claudio-
dc.contributor.authorForesti, Fausto-
dc.date.accessioned2014-05-20T13:52:17Z-
dc.date.accessioned2016-10-25T17:03:24Z-
dc.date.available2014-05-20T13:52:17Z-
dc.date.available2016-10-25T17:03:24Z-
dc.date.issued2012-01-01-
dc.identifierhttp://dx.doi.org/10.1080/00087114.2012.678086-
dc.identifier.citationCaryologia. Florence: Univ Florence Botany Inst, v. 65, n. 1, p. 40-46, 2012.-
dc.identifier.issn0008-7114-
dc.identifier.urihttp://hdl.handle.net/11449/18683-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/18683-
dc.description.abstractSeveral cases of natural triploidy have already been described in fish, however this is the first report of a surviving triploid that also carries two different supernumerary chromosomes. Cytogenetic analysis of an Astyanax scabripinnis population revealed a standard karyotype of 2n = 50, with a chromosome formula consisting of: 6 metacentric + 16 submetacentric + 14 subtelocentric + 14 acrocentric chromosomes. In addition, specimens showed a polymorphism for the presence of up to two supernumerary chromosomes. Among the specimens analyzed one was a natural triploid (with 75 chromosomes) that also carried a small sized and a macro-supernumerary chromosome. The co-occurrence of spontaneous triploidy and two supernumerary chromosome indicates the viability of this karyotype constitution as well as this fish capacity of tolerating extra chromosomes in large numbers.en
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.extent40-46-
dc.language.isoeng-
dc.publisherUniv Florence Botany Inst-
dc.sourceWeb of Science-
dc.subjectAstyanax scabripinnisen
dc.subjectnucleolus organizer regionsen
dc.subjectpolyploidyen
dc.subjectsupernumerary chromosomeen
dc.titleNatural triploidy and B chromosomes in Astyanax scabripinnis (Characiformes, Characidae): a new occurrenceen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Estadual de Ponta Grossa (UEPG)-
dc.contributor.institutionUniv Granada-
dc.description.affiliationUniv Estadual Paulista, Inst Biosci, Dept Morphol, BR-18618970 Botucatu, SP, Brazil-
dc.description.affiliationUniversidade Estadual de Ponta Grossa (UEPG), Dept Mol & Struct Biol & Genet, BR-84030900 Maringa, Parana, Brazil-
dc.description.affiliationUniv Granada, Fac Ciencias, Dept Genet, E-18071 Granada, Spain-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biosci, Dept Morphol, BR-18618970 Botucatu, SP, Brazil-
dc.description.sponsorshipIdFAPESP: 08/57067-1-
dc.identifier.doi10.1080/00087114.2012.678086-
dc.identifier.wosWOS:000310431600007-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofCaryologia-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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