Cytogenetic analysis in Thoracocharax stellatus (Kner, 1858) (Characiformes, Gasteropelecidae) from Paraguay River Basin, Mato Grosso, Brazil

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade Federal de Mato Grosso do Sul (UFMS)-
Autor(es): dc.contributorUniversidade Federal do ABC (UFABC)-
Autor(es): dc.creatorSilva, Edson Lourenco da [UNESP]-
Autor(es): dc.creatorBorba, Rafael Splendore de [UNESP]-
Autor(es): dc.creatorCentofante, Liano-
Autor(es): dc.creatorMiyazawa, Carlos Suetoshi-
Autor(es): dc.creatorParise-Maltempi, Patricia Pasquali [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:08:16Z-
Data de disponibilização: dc.date.available2022-02-22T00:08:16Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2012-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3897/CompCytogen.v6i3.3637-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/196024-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/196024-
Descrição: dc.descriptionThoracocharaz stellatus (Characiformes, Gasteropelecidae) is a small Neotropical species of fish, widely distributed in several rivers of South America. Evidence for karyotype heteromorphysm in populations from different geographical regions has been reported for this species. In this way, populations of T stellatus from the Paraguay River basin were cytogenetically characterized and the results were compared with other studies performed in the same species but from different basins. The results showed a diploid number of 2n = 54 for T stellatus, with chromosomes arranged in 6 metacentric (m), 6 submetacentric (sm), 2 subtelocentric (st) and 40 acrocentric (a), for both sexes, with a simple Nucleolus Organiser Region (NOR) system reported by the techniques of silver nitrate impregnation and fluorescent in situ hybridisation (FISH) using 18S rDNA sequences as probe. The distribution of constitutive heterochromatin, observed by the C-band technique and Chromomycin A3 staining showed great similarity among the analyzed populations and consists mainly of discrete blocks in the pericentromeric and telomeric regions of most chromosomes. The presence of female heterogamety was also observed indicating a ZZ/ZW system with W chromosome almost totally heterochromatic. The results also show cytogenetic diversity of the group and are useful to understand the mechanisms of karyotype evolution of the family.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFAPEMAT-
Descrição: dc.descriptionBASA-
Descrição: dc.descriptionUFMT-
Descrição: dc.descriptionUNESP Univ Estadual Paulista, Inst Biociencias, Dept Biol, Lab Citogenet, BR-13506900 Rio Claro, SP, Brazil-
Descrição: dc.descriptionUFMT Univ Fed Mato Grosso, Inst Biociencias, Dept Biol & Zool, Lab Citogenet Anim, BR-78060900 Cuiaba, MT, Brazil-
Descrição: dc.descriptionUniv Fed ABC, CCNH, BR-09210170 Santo Andre, SP, Brazil-
Descrição: dc.descriptionUNESP Univ Estadual Paulista, Inst Biociencias, Dept Biol, Lab Citogenet, BR-13506900 Rio Claro, SP, Brazil-
Formato: dc.format323-333-
Idioma: dc.languageen-
Publicador: dc.publisherPensoft Publishers-
Relação: dc.relationComparative Cytogenetics-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectThoracocharaz stellatus-
Palavras-chave: dc.subjectAg-NOR-
Palavras-chave: dc.subjectC-band-
Palavras-chave: dc.subjectFISH-
Palavras-chave: dc.subject18S rDNA-
Título: dc.titleCytogenetic analysis in Thoracocharax stellatus (Kner, 1858) (Characiformes, Gasteropelecidae) from Paraguay River Basin, Mato Grosso, Brazil-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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