Cytogenetic analysis of species of the genera Acestrorhynchus, Oligosarcus and Rhaphiodon (Teleostei: Characiformes)

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dc.contributor.authorMartinez, Emanuel Ricardo Monteiro [UNESP]
dc.contributor.authorOliveira, Claudio [UNESP]
dc.contributor.authorJúlio-Junior, Horácio F.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.date.accessioned2014-05-27T11:21:11Z
dc.date.available2014-05-27T11:21:11Z
dc.date.issued2004-12-01
dc.description.abstractIn the present study the karyotypes and the number and position of nucleolus organizer regions (NORs) of four species of Characiformes are described. The analyses showed that Acestrorhynchus lacustris had 2n=50 chromosomes (8M+34SM+6ST+2A), Oligosarcus longirostris had 2n=50 chromosomes (2M+20SM+10ST+18A), Oligosarcus cf. paranensis from Keller and Mourão rivers had 2n=50 chromosomes (2M+26SM+8ST+14A), and Rhaphiodon vulpinus had 2n=54 chromosomes (32M+12SM+8ST+2A). The number of NOR-bearing chromosome pairs ranged from one to three among the species studied. The results available show that there is no variation in the diploid number within the genera analyzed. However, clear differences related to the karyotypic formulae and the number and position of Ag-NORs were found even in the comparison between populations. The possible relationships between the genera analyzed and other Characiformes are discussed.en
dc.description.affiliationDepartamento de Morfologia Instituto de Biociências Universidade Estadual Paulista, 18618-000 Botucatu, SP
dc.description.affiliationDepartamento de Biologia Celular e Genética Universidade Estadual de Maringá, Maringá, Paraná
dc.description.affiliationUnespDepartamento de Morfologia Instituto de Biociências Universidade Estadual Paulista, 18618-000 Botucatu, SP
dc.format.extent294-299
dc.identifierhttp://dx.doi.org/10.1080/00087114.2004.10589408
dc.identifier.citationCaryologia, v. 57, n. 3, p. 294-299, 2004.
dc.identifier.doi10.1080/00087114.2004.10589408
dc.identifier.issn0008-7114
dc.identifier.scopus2-s2.0-77949687008
dc.identifier.urihttp://hdl.handle.net/11449/67962
dc.identifier.wosWOS:000226434300014
dc.language.isoeng
dc.relation.ispartofCaryologia
dc.relation.ispartofjcr0.608
dc.relation.ispartofsjr0,281
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAg-NOR
dc.subjectChromosomes
dc.subjectEvolution
dc.subjectFish
dc.subjectKaryotype
dc.subjectAcestrorhynchus
dc.subjectAcestrorhynchus lacustris
dc.subjectCharaciformes
dc.subjectOligosarcus
dc.subjectRhaphiodon
dc.subjectRhaphiodon vulpinus
dc.subjectTeleostei
dc.titleCytogenetic analysis of species of the genera Acestrorhynchus, Oligosarcus and Rhaphiodon (Teleostei: Characiformes)en
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt
unesp.departmentMorfologia - IBBpt

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