Localization of 18S ribosomal genes in suckermouth armoured catfishes Loricariidae (Teleostei, Siluriformes) with discussion on the Ag-NOR evolution

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAlves, Anderson Luis
dc.creatorde Borba, Rafael Splendore
dc.creatorBonetti Pozzobon, Allan Pierre
dc.creatorOliveira, Claudio
dc.creatorNirchio, Mauro
dc.creatorGranado, Angel
dc.creatorForesti, Fausto
dc.date2014-05-20T13:52:35Z
dc.date2014-05-20T13:52:35Z
dc.date2012-01-01
dc.date.accessioned2017-04-05T21:07:11Z
dc.date.available2017-04-05T21:07:11Z
dc.identifierComparative Cytogenetics. St Petersburg: Zoological Inst, v. 6, n. 3, p. 315-321, 2012.
dc.identifier1993-0771
dc.identifierhttp://hdl.handle.net/11449/18771
dc.identifier10.3897/CompCytogen.v6i3.2667
dc.identifierWOS:000311066300008
dc.identifierWOS000311066300008.pdf
dc.identifierhttp://dx.doi.org/10.3897/CompCytogen.v6i3.2667
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/864837
dc.descriptionThe family Loricariidae with about 690 species divided into six subfamilies, is one of the world's largest fish families. Cytogenetic studies conducted in the family showed that among 90 species analyzed the diploid number ranges from 2n=38 in Ancistrus sp. to 2n=96 in Hemipsilichthys gobio Luetken, 1874. In the present study, fluorescence in situ hybridization (FISH) was employed to determine the chromosomal localization of the 18S rDNA gene in four suckermouth armoured catfishes: Kronichthys lacerta (Nichols, 1919), Pareiorhaphis splendens (Bizerril, 1995), Liposarcus multiradiatus (Hancock, 1828) and Hypostomus prope plecostomus (Linnaeus, 1758). All species analyzed showed one chromosome pair with 18S rDNA sequences, as observed in the previous Ag-NORs analyses. The presence of size and numerical polymorphism was observed and discussed, with proposing a hypothesis of the Ag-NOR evolution in Loricariidae.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageeng
dc.publisherZoological Inst
dc.relationComparative Cytogenetics
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectFish cytogenetics
dc.subjectfluorescent in situ hybridization
dc.subjectLoricariidae
dc.titleLocalization of 18S ribosomal genes in suckermouth armoured catfishes Loricariidae (Teleostei, Siluriformes) with discussion on the Ag-NOR evolution
dc.typeOtro


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