Karyotypic Evolution and Chromosomal Organization of Repetitive DNA Sequences in Species of Panaque, Panaqolus, and Scobinancistrus (Siluriformes and Loricariidae) from the Amazon Basin

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorAyres-Alves, Thayana-
Autor(es): dc.creatorCardoso, Adauto Lima-
Autor(es): dc.creatorNagamachi, Cleusa Yoshiko-
Autor(es): dc.creatorSousa, Leandro Melo de-
Autor(es): dc.creatorPieczarka, Julio Cesar-
Autor(es): dc.creatorRodrigues Noronha, Renata Coelho-
Data de aceite: dc.date.accessioned2021-03-10T23:54:36Z-
Data de disponibilização: dc.date.available2021-03-10T23:54:36Z-
Data de envio: dc.date.issued2018-11-26-
Data de envio: dc.date.issued2018-11-26-
Data de envio: dc.date.issued2017-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1089/zeb.2016.1373-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/162853-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/162853-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionBanco Nacional de Desenvolvimento Economico e Social-BNDS-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionProcesso FAPESP: 2010/110447-
Descrição: dc.descriptionBanco Nacional de Desenvolvimento Economico e Social-BNDS: Operacao 2.318.697.0001-
Descrição: dc.descriptionCNPq: 475013/2012-3-
Descrição: dc.descriptionLoricariidae family comprises the greatest variability of Neotropical catfish species, with more than 800 valid species. This family shows significant chromosomal diversity. Mapping of repetitive DNA sequences can be very useful in exploring such diversity, especially among groups that appear to share a preserved karyotypic macrostructure. We describe the karyotypes of Panaque armbrusteri and Panaqolus sp., as assessed using classical cytogenetic methods. Moreover, we offer a map of their repetitive sequences, including 18S and 5S ribosomal DNAs, the Rex1 and Rex3 retrotransposons, and the Tc1-mariner transposon in P. armbrusteri, Panaqolus sp., Scobinancistrus aureatus, and Scobinancistrus pariolispos. Those species share chromosome numbers of 2n = 52, but are divergent in their chromosome structures and the distributions of their repetitive DNA sequences. In situ hybridization with 18S and 5S rDNA probes confirms chromosome location in different pairs; in Panaqolus sp. these sites are in synteny. This multigene family organization can be explained by the occurrence of chromosome rearrangements, and possible events, such as transposition and unequal crossing-over. Rex1 and Rex3 retrotransposons and the Tc1-mariner transposon appeared predominantly dispersed and in small clusters in some chromosome regions. These data emphasize the importance of repetitive sequences in promoting the karyotypic evolution of these species.-
Formato: dc.format251-260-
Idioma: dc.languageen-
Publicador: dc.publisherMary Ann Liebert, Inc-
Relação: dc.relationZebrafish-
Relação: dc.relation0,795-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectchromosomal diversity-
Palavras-chave: dc.subjectrepetitive sequences-
Palavras-chave: dc.subjectfish mapping-
Palavras-chave: dc.subjectretrotransposons-
Palavras-chave: dc.subjecttransposons-
Palavras-chave: dc.subjectAncistrini-
Título: dc.titleKaryotypic Evolution and Chromosomal Organization of Repetitive DNA Sequences in Species of Panaque, Panaqolus, and Scobinancistrus (Siluriformes and Loricariidae) from the Amazon Basin-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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