Comparative cytogenetics of cichlid fishes through genomic in-situ hybridization (GISH) with emphasis on Oreochromis niloticus

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dc.contributor.authorValente, Guilherme Targino [UNESP]
dc.contributor.authorSchneider, Carlos Henrique
dc.contributor.authorGross, Maria Claudia
dc.contributor.authorFeldberg, Eliana
dc.contributor.authorMartins, Cesar [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInst Nacl de Pesquisas da Amazonia
dc.date.accessioned2014-05-20T13:52:00Z
dc.date.available2014-05-20T13:52:00Z
dc.date.issued2009-08-01
dc.description.abstractCichlidae is the most species-rich freshwater family of Perciformes and has attracted the attention of aquarium hobbyists, aquaculturists, and sport fisherman. Oreochromis niloticus is very important in aquaculture today and is currently used in varied areas of study as an 'experimental model'. Oreochromis niloticus has been characterized using classical and molecular cytogenetic techniques, with special attention paid to heterochromatin structure and the identification of sex chromosomes. In this study, we compare the genome of O. niloticus with that of other cichlids from Africa and South America using genomic in-situ hybridization (GISH). Our results show that at least some elements comprising the pericentromeric heterochromatin of Nile tilapia are species-specific and that the sequence of the majority of the long arm of the largest chromosome pair is conserved within the tilapiine group, which is composed of the genera Tilapia, Oreochromis, and Sarotherodon. It is suggested that the extensive regions of repeated DNA in the largest chromosome pair of O. niloticus resulted from chromosome rearrangement or accumulation caused by recombination suppression during the evolutionary history of the tilapiines.en
dc.description.affiliationUniv Estadual Paulista, Dept Morfol, Inst Biociencias, BR-18618000 Botucatu, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Lab Genom Integrat, Dept Morfol, Inst Biociencias, BR-18618000 Botucatu, SP, Brazil
dc.description.affiliationInst Nacl de Pesquisas da Amazonia, Lab Genet Peixes, Manaus, Amazonas, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Morfol, Inst Biociencias, BR-18618000 Botucatu, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Lab Genom Integrat, Dept Morfol, Inst Biociencias, BR-18618000 Botucatu, SP, Brazil
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.extent791-799
dc.identifierhttp://dx.doi.org/10.1007/s10577-009-9067-5
dc.identifier.citationChromosome Research. Dordrecht: Springer, v. 17, n. 6, p. 791-799, 2009.
dc.identifier.doi10.1007/s10577-009-9067-5
dc.identifier.issn0967-3849
dc.identifier.lattes8858800699425352
dc.identifier.orcid0000-0003-3534-974X
dc.identifier.urihttp://hdl.handle.net/11449/18579
dc.identifier.wosWOS:000270648100009
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofChromosome Research
dc.relation.ispartofjcr2.909
dc.relation.ispartofsjr1,425
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCichlidaeen
dc.subjectChromosomeen
dc.subjectHeterochromatinen
dc.subjectEvolutionen
dc.subjectRepeated DNAsen
dc.subjectGenomeen
dc.titleComparative cytogenetics of cichlid fishes through genomic in-situ hybridization (GISH) with emphasis on Oreochromis niloticusen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes8858800699425352[5]
unesp.author.orcid0000-0003-0761-4112[2]
unesp.author.orcid0000-0001-5355-3424[1]
unesp.author.orcid0000-0003-3534-974X[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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