Molecular and cytogenetic analyses of cryptic species within the Synbranchus marmoratus Bloch, 1795 (Synbranchiformes: Synbranchidae) grouping: Species delimitations, Karyotypic evolution and intraspecific diversification

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de São Paulo (UNIFESP)-
Autor(es): dc.creatorUtsunomia, Ricardo-
Autor(es): dc.creatorPansonato-Alves, José C.-
Autor(es): dc.creatorCosta-Silva, Guilherme J.-
Autor(es): dc.creatorMendonça, Fernando F.-
Autor(es): dc.creatorScacchetti, Priscilla C.-
Autor(es): dc.creatorOliveira, Claudio-
Autor(es): dc.creatorForesti, Fausto-
Data de aceite: dc.date.accessioned2025-08-21T23:04:01Z-
Data de disponibilização: dc.date.available2025-08-21T23:04:01Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2014-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/1982-0224-20140039-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/227913-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/227913-
Descrição: dc.descriptionThe fish species Synbranchus marmoratus has been reported to exist as a species complex due to high intraspecific karyotypic variability in spite of the difficulty or impossibility to distinguish them using morphological traits alone. The goal of this work was to use cytogenetic and molecular methods to determine the species delimitations and understand the karyoevolution of S. marmoratus using samples collected from distinct Brazilian localities. Among the analyzed specimens, a large degree of cytogenetic variation related to diploid numbers and karyotype structure was observed, with karyotypes showing 2n=42, 44 and 46 chromosomes. In addition, using sequences of three mitochondrial genes, the phylogenetic relationships between every sample with a known karyotype were determined, which revealed significant nucleotide divergence among the karyomorphs. Also, the analyses indicate that chromosomal rearrangements occurred independently within the distinct lineages of S. marmoratus complex, which resulted in the appearance of distinct karyotypic variants in a non-linear fashion related to diploid numbers and in the appearance of similar non-homologous chromosomes. Finally, the integration of both molecular cytogenetic and phylogenetic approaches allowed the determination of specific chromosomes possibly involved in rearrangements and a better understanding about the evolutionary processes involved in the differentiation of Synbranchus genus.-
Descrição: dc.descriptionDepartamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Distrito de Rubião Junior, s/n-
Descrição: dc.descriptionDepartamento de Ciências do Mar, Instituto do Mar, Universidade Federal de São Paulo, Av. Almirante Saldanha da Gama, 89-
Descrição: dc.descriptionDepartamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Distrito de Rubião Junior, s/n-
Formato: dc.format903-912-
Idioma: dc.languageen-
Relação: dc.relationNeotropical Ichthyology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectChromosomal diversity-
Palavras-chave: dc.subjectFish cytogenetics-
Palavras-chave: dc.subjectKaryotype evolution-
Palavras-chave: dc.subjectRepetitive DNA-
Palavras-chave: dc.subjectSpecies complex-
Título: dc.titleMolecular and cytogenetic analyses of cryptic species within the Synbranchus marmoratus Bloch, 1795 (Synbranchiformes: Synbranchidae) grouping: Species delimitations, Karyotypic evolution and intraspecific diversification-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.