Physical chromosome mapping of repetitive DNA sequences in Nile tilapia Oreochromis niloticus: Evidences for a differential distribution of repetitive elements in the sex chromosomes

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dc.contributor.authorFerreira, Irani A. [UNESP]
dc.contributor.authorMartins, Cesar [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:52:10Z
dc.date.available2014-05-20T13:52:10Z
dc.date.issued2008-06-01
dc.description.abstractRepetitive DNAs have been extensively applied as physical chromosome markers on comparative studies, identification of chromosome rearrangements and sex chromosomes, chromosome evolution analysis, and applied genetics. Here we report the characterization of repetitive DNA sequences from the Nile tilapia (Oreochromis niloticus) genome by construction and screening of plasmid library enriched with repetitive DNAs, analysis of a BAC-based physical map, and hybridization to chromosomes. The physical mapping of BACs enriched with repetitive sequences and C(o)t-1 DNA (DNA enriched for highly and moderately repetitive DNA sequences) to chromosomes using FISH showed a predominant distribution of repetitive elements in the centromeric and telomeric regions and along the entire length of the largest chromosome pair (X and Y sex chromosomes) of the species. The distribution of repetitive DNAs differed significantly between the p arm of X and Y chromosomes. These findings suggest that repetitive DNAs have had an important role in the differentiation of sex chromosomes. (c) 2007 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUNESP Univ Estadual Paulista, Inst Biociencias, Dept Morfol, BR-18618000 Botucatu, SP, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Paulista, Inst Biociencias, Dept Morfol, BR-18618000 Botucatu, SP, Brazil
dc.format.extent411-418
dc.identifierhttp://dx.doi.org/10.1016/j.micron.2007.02.010
dc.identifier.citationMicron. Oxford: Pergamon-Elsevier B.V. Ltd, v. 39, n. 4, p. 411-418, 2008.
dc.identifier.doi10.1016/j.micron.2007.02.010
dc.identifier.issn0968-4328
dc.identifier.lattes8858800699425352
dc.identifier.orcid0000-0003-3534-974X
dc.identifier.urihttp://hdl.handle.net/11449/18637
dc.identifier.wosWOS:000256983000009
dc.language.isoeng
dc.publisherPergamon-Elsevier B.V. Ltd
dc.relation.ispartofMicron
dc.relation.ispartofjcr1.728
dc.relation.ispartofsjr0,624
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectcytogeneticsen
dc.subjectfishen
dc.subjectgenomeen
dc.subjectin situ hybridizationen
dc.subjectsex chromosomesen
dc.titlePhysical chromosome mapping of repetitive DNA sequences in Nile tilapia Oreochromis niloticus: Evidences for a differential distribution of repetitive elements in the sex chromosomesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderPergamon-Elsevier B.V. Ltd
unesp.author.lattes8858800699425352[2]
unesp.author.orcid0000-0003-3534-974X[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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