Chromosomal stasis in distinct families of marine Percomorpharia from South Atlantic

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual do Sudoeste da Bahia (UESB)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorPaim, Fabilene Gomes-
Autor(es): dc.creatorda Hora Almeida, Leandro Aragão-
Autor(es): dc.creatorde Mello Affonso, Paulo Roberto Antunes-
Autor(es): dc.creatorSobrinho-Scudeler, Patrícia Elda [UNESP]-
Autor(es): dc.creatorClaudio Oliveira, Débora Diniz-
Data de aceite: dc.date.accessioned2022-02-22T00:50:47Z-
Data de disponibilização: dc.date.available2022-02-22T00:50:47Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2017-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3897/CompCytogen.v11i2.11942-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/207590-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/207590-
Descrição: dc.descriptionThe weakness of physical barriers in the marine environment and the dispersal potential of fish populations have been invoked as explanations of the apparent karyotype stasis of marine Percomorpha, but several taxa remain poorly studied cytogenetically. To increase the chromosomal data in this fish group, we analyzed cytogenetically three widespread Atlantic species from distinct families: Chaetodipterus faber Brous-sonet, 1782 (Ephippidae), Lutjanus synagris Linnaeus, 1758 (Lutjanidae) and Rypticus randalli Courtenay, 1967 (Serranidae). The three species shared a karyotype composed of 2n=48 acrocentric chromosomes, single nucleolus organizer regions (NORs) and reduced amounts of centromeric heterochromatin. A single NOR-bearing pair was identified in all species by physical mapping of 18S rDNA while non-syntenic 5S rRNA genes were located at centromeric region of a single pair. The similar karyotypic macrostructure observed in unrelated groups of Percomorpharia reinforces the conservative karyoevolution of marine teleosteans. Nonetheless, the species could be differentiated based on the pair bearing ribosomal cistrons, revealing the importance of microstructural analyses in species with symmetric and stable karyotypes.-
Descrição: dc.descriptionDepartamento de Ciências Biológicas Universidade Estadual do Sudoeste da Bahia (UESB)-
Descrição: dc.descriptionLaboratório de Biologia e Genética de Peixes Instituto de Biociências de Botucatu UNESP-
Descrição: dc.descriptionLaboratório de Biologia e Genética de Peixes Instituto de Biociências de Botucatu UNESP-
Formato: dc.format299-307-
Idioma: dc.languageen-
Relação: dc.relationComparative Cytogenetics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCytotaxonomy-
Palavras-chave: dc.subjectEphippiformes-
Palavras-chave: dc.subjectribosomal genes-
Palavras-chave: dc.subjectSouth Atlantic-
Título: dc.titleChromosomal stasis in distinct families of marine Percomorpharia from South Atlantic-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.