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dc.contributor.authorOliveira, Ezequiel A. de-
dc.contributor.authorSassi, Francisco de M. C-
dc.contributor.authorPerez, Manolo F-
dc.contributor.authorBertollo, Luiz A. C-
dc.contributor.authorRáb, Petr-
dc.contributor.authorEzaz, Tariq-
dc.contributor.authorHatanaka, Terumi-
dc.contributor.authorViana, Patrick F-
dc.contributor.authorFeldberg, Eliana-
dc.contributor.authorOliveira, Edivaldo Herculano Corrêa de-
dc.contributor.authorCioffi, Marcelo de B-
dc.date.accessioned2020-12-07T12:46:45Z-
dc.date.available2020-12-07T12:46:45Z-
dc.date.issued2020-
dc.identifier.citationOLIVEIRA, Ezequiel A. de et al. Comparative cytogenetic survey of the giant bonytongue arapaima fish (Osteoglossiformes: Arapaimidae), across different Amazonian and Tocantins/Araguaia River Basins. Neotropical Ichthyology, v. 18, n 4, e200055, 2020.pt_BR
dc.identifier.issn1679-6225-
dc.identifier.urihttp://patua.iec.gov.br//handle/iec/4207-
dc.description.abstractThe South American giant fishes of the genus Arapaima, commonly known as pirarucu, are one of the most iconic among Osteoglossiformes. Previously cytogenetic studies have identified their karyotype characteristics; however, characterization of cytotaxonomic differentiation across their distribution range remains unknown. In this study, we compared chromosomal characteristics using conventional and molecular cytogenetic protocols in pirarucu populations from the Amazon and Tocantins-Araguaia river basins to verify if there is differentiation among representatives of this genus. Our data revealed that individuals from all populations present the same diploid chromosome number 2n=56 and karyotype composed of 14 pairs of meta-to submetacentric and 14 pairs of subtelo-to acrocentric chromosomes. The minor and major rDNA sites are in separate chromosomal pairs, in which major rDNA sites corresponds to large heterochromatic blocks. Comparative genomic hybridizations (CGH) showed that the genome of these populations shared a great portion of repetitive elements, due to a lack of substantial specific signals. Our comparative cytogenetic data analysis of pirarucu suggested that, although significant genetic differences occur among populations, their general karyotype patterns remain conserved.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (401962/2016–4 and 302449/2018–3 to MBC); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) (2018/22033–1 to MBC; and 2017/10240–0 to MFP); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)/Alexander von Humboldt Foundation (88881.136128/2017–01 to MBC). project EXCELLENCE (CZ.02.1.01/0.0/0.0/ 15_003/0000460 OP).pt_BR
dc.language.isoengpt_BR
dc.publisherSociedade Brasileira de Ictiologiapt_BR
dc.rightsAcesso Abertopt_BR
dc.titleComparative cytogenetic survey of the giant bonytongue arapaima fish (Osteoglossiformes: Arapaimidae), across different Amazonian and Tocantins/Araguaia River Basinspt_BR
dc.typeArtigopt_BR
dc.subject.decsPrimaryPeixes / anatomia & histologiapt_BR
dc.subject.decsPrimaryPirarucupt_BR
dc.subject.decsPrimaryAnálise Citogenética / veterináriapt_BR
dc.subject.decsPrimaryMapeamento Cromossômicopt_BR
dc.subject.decsPrimaryDNA Ribossômicopt_BR
dc.subject.decsPrimaryBacia do Rio Amazonaspt_BR
dc.subject.decsPrimaryBacia do Rio Tocantins-Araguaiapt_BR
dc.creator.affilliationUniversidade Federal de São Carlos. Departamento de Genética e Evolução. São Carlos, SP, Brazil / Secretaria de Estado de Educação de Mato Grosso. Cuiabá, MT, Brazil.pt_BR
dc.creator.affilliationUniversidade Federal de São Carlos. Departamento de Genética e Evolução. São Carlos, SP, Brazil.pt_BR
dc.creator.affilliationUniversidade Federal de São Carlos. Departamento de Genética e Evolução. São Carlos, SP, Brazil.pt_BR
dc.creator.affilliationUniversidade Federal de São Carlos. Departamento de Genética e Evolução. São Carlos, SP, Brazil.pt_BR
dc.creator.affilliationCzech Academy of Sciences. Institute of Animal Physiology and Genetics. Laboratory of Fish Genetics. Czech Republic.pt_BR
dc.creator.affilliationUniversity of Canberra. Instituto for Applied Ecology. Canberra, ACT, Australia.pt_BR
dc.creator.affilliationUniversidade Federal de São Carlos. Departamento de Genética e Evolução. São Carlos, SP, Brazil.pt_BR
dc.creator.affilliationInstituto Nacional de Pesquisas da Amazônia. Coordenação de Biodiversidade. Laboratório de Genética Animal. Petrópolis, AM, Brazil.pt_BR
dc.creator.affilliationInstituto Nacional de Pesquisas da Amazônia. Coordenação de Biodiversidade. Laboratório de Genética Animal. Petrópolis, AM, Brazil.pt_BR
dc.creator.affilliationMinistério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Laboratório de Cultura de Tecidos e Citogenética. Ananindeua, PA, Brasil.pt_BR
dc.creator.affilliationUniversidade Federal de São Carlos. Departamento de Genética e Evolução. São Carlos, SP, Brazil.pt_BR
dc.identifier.doi10.1590/1982-0224-2020-0055-


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