Cytogenetic analysis of three species of the genus Haemulon (Teleostei : Haemulinae) from Margarita Island, Venezuela

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dc.contributor.authorNirchio, Mauro
dc.contributor.authorGaviria, Juan I.
dc.contributor.authorOliveira, Claudio
dc.contributor.authorFerreira, Irani Alves
dc.contributor.authorMartins, Cesar
dc.contributor.institutionUniv Oriente
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:51:31Z
dc.date.available2014-05-20T13:51:31Z
dc.date.issued2007-10-01
dc.description.abstractThis paper describes the karyotype analysis of Haemulon aurolineatum, Haemulon bonariensis and Haemulon plumierii, by Giemsa staining, C-banding, Ag-staining and fluorescent in situ hybridization (FISH), to locate the 18S and 5S rRNA genes. Diploid modal count in the three species was 2n = 48 acrocentric elements. Except for pair 24, which exhibited an unmistakable secondary constriction in all three species, it was not possible to classify them as homologous to each other because differences in chromosome size were too slight between adjacent pairs within a size-graded series. Ag-NOR clusters were located in pair 24 in the three species with signal located on the secondary constriction of these chromosomes. C-banding demonstrated that the three species share the same distribution pattern of the constitutive heterochromatin with centromeric heterochromatic blocks in the 23 chromosome pairs and a pericentromeric block in pair 24 which is coincident with the NORs. FISH experiments showed that 18S rDNA sequences were located coincident with the Ag-NOR site in the three species; however, differences in both the number and chromosome distribution of 5S-rDNA cluster were detected among them. Our data suggest that chromosome evolution of Haemulon has been preserved from major changes in the karyotypic macrostructure, whereas microstructural changes have occurred.en
dc.description.affiliationUniv Oriente, Escuela Ciências Apllicadas Mar, Oriente, Venezuela
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias, Dept Morfol, Botucatu, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias, Dept Morfol, Botucatu, SP, Brazil
dc.format.extent135-140
dc.identifierhttp://dx.doi.org/10.1007/s10709-006-9123-4
dc.identifier.citationGenetica. Dordrecht: Springer, v. 131, n. 2, p. 135-140, 2007.
dc.identifier.doi10.1007/s10709-006-9123-4
dc.identifier.issn0016-6707
dc.identifier.lattes8858800699425352
dc.identifier.orcid0000-0003-3534-974X
dc.identifier.urihttp://hdl.handle.net/11449/18429
dc.identifier.wosWOS:000249302600004
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofGenetica
dc.relation.ispartofjcr1.366
dc.relation.ispartofsjr0,649
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectC-bandingpt
dc.subjectFISHpt
dc.subjectNORpt
dc.subject5S rDNApt
dc.subject18S rDNApt
dc.subjectperciformespt
dc.subjectHaemulidaept
dc.titleCytogenetic analysis of three species of the genus Haemulon (Teleostei : Haemulinae) from Margarita Island, Venezuelaen
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.orcid0000-0003-3534-974X[5]
unesp.author.orcid0000-0001-7171-2433[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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