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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/18314
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dc.contributor.authorMartins, Cesar-
dc.contributor.authorFerreira, Irani Alves-
dc.contributor.authorOliveira, Claudio-
dc.contributor.authorForesti, Fausto-
dc.contributor.authorGaletti, Pedro Manoel-
dc.date.accessioned2014-05-20T13:51:17Z-
dc.date.accessioned2016-10-25T17:02:56Z-
dc.date.available2014-05-20T13:51:17Z-
dc.date.available2016-10-25T17:02:56Z-
dc.date.issued2006-05-01-
dc.identifierhttp://dx.doi.org/10.1007/s10709-005-2674-y-
dc.identifier.citationGenetica. Dordrecht: Springer, v. 127, n. 1-3, p. 133-141, 2006.-
dc.identifier.issn0016-6707-
dc.identifier.urihttp://hdl.handle.net/11449/18314-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/18314-
dc.description.abstractA substantial fraction of the eukaryotic genome consists of repetitive DNA sequences that include satellites, minisatellites, microsatellites, and transposable elements. Although extensively studied for the past three decades, the molecular forces that generate, propagate and maintain repetitive DNAs in the genomes are still discussed. To further understand the dynamics and the mechanisms of evolution of repetitive DNAs in vertebrate genome, we searched for repetitive sequences in the genome of the fish species Hoplias malabaricus. A satellite sequence, named 5SHindIII-DNA, which has a conspicuous similarity with 5S rRNA genes and spacers was identified. FISH experiments showed that the 5S rRNA bona fide gene repeats were clustered in the interstitial position of two chromosome pairs of H. malabaricus, while the satellite 5SHindIII-DNA sequences were clustered in the centromeric position in nine chromosome pairs of the species. The presence of the 5SHindIII-DNA sequences in the centromeres of several chromosomes indicates that this satellite family probably escaped from the selective pressure that maintains the structure and organization of the 5S rDNA repeats and become disperse into the genome. Although it is not feasible to explain how this sequence has been maintained in the centromeric regions, it is possible to hypothesize that it may be involved in some structural or functional role of the centromere organization.en
dc.format.extent133-141-
dc.language.isoeng-
dc.publisherSpringer-
dc.sourceWeb of Science-
dc.subject5S rDNApt
dc.subject5S rDNA variantpt
dc.subjectcentromeric DNApt
dc.subjectfishpt
dc.subjectHoplias malabaricuspt
dc.subjectsatellite DNApt
dc.titleA tandemly repetitive centromeric DNA sequence of the fish Hoplias malabaricus (Characiformes : Erythrinidae) is derived from 5S rDNAen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)-
dc.description.affiliationUniv Estadual Paulista Julio Mesquita Filho, Dept Morfol, Inst Biociencias, BR-18618000 Botucatu, SP, Brazil-
dc.description.affiliationUniv Fed Sao Carlos, Dept Genet & Evolucao, Ctr Ciências Biol Saude, BR-13565905 Sao Carlos, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista Julio Mesquita Filho, Dept Morfol, Inst Biociencias, BR-18618000 Botucatu, SP, Brazil-
dc.identifier.doi10.1007/s10709-005-2674-y-
dc.identifier.wosWOS:000239164900012-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofGenetica-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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