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dc.creatorTakagui, Fábio Hiroshi
dc.creatorDias, Ana Lucia
dc.creatorOlivan Birindelli, José Luís
dc.creatorSwarça, Ana Claudia
dc.creatorDa Rosa, Renata
dc.creatorLui, Roberto Laridondo
dc.creatorFenocchio, Alberto Sergio
dc.creatorGiuliano-Caetano, Lucia
dc.date.accessioned2023-01-26T14:01:03Z
dc.date.available2023-01-26T14:01:03Z
dc.date.issued2017-01-09
dc.identifier.citationTakagui, F. H., Dias, A. L., Olivan Birindelli, J L., Swarça, A. C., Da Rosa, R., Lui, R. L.,... Giuliano-Caetano, L. (2017). First report of B chromosomes in three neotropical thorny catfishes (Siluriformes, Doradidae). Comparative Cytogenetics: Revista internacional de citogenética vegetal y animal, Cariosistemática y sistemática molecular. Bulgaria : Pensoft; 11(1), pp. 55-64.es_AR
dc.identifier.issn1993-078X
dc.identifier.otherCCPI-CNyE-A-035
dc.identifier.other6746
dc.identifier.urihttps://hdl.handle.net/20.500.12219/4339
dc.descriptionFil: Takagui, Fábio Hiroshi. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Biología General. Laboratorio de Citogenética Animal; Brasil.es_AR
dc.descriptionFil: Dias, Ana Lucia. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Biología General. Laboratorio de Citogenética Animal; Brasil.es_AR
dc.descriptionFil: Olivan Birindelli, José Luís. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Biología animal y vegetal. Museo de Zoología; Brasil.es_AR
dc.descriptionFil: Swarça, Ana Claudia. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Histología. Laboratorio de Histología y Genética; Brasil.es_AR
dc.descriptionFil: Da Rosa, Renata. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Biología General. Laboratorio de Citogenética Animal; Brasil.es_AR
dc.descriptionFil: Lui, Roberto Laridondo. Universidad del Oeste de Paraná. Centro de Ciencias Biológicas y de la Salud. Laboratorio de Citogenética; Brasil.es_AR
dc.descriptionFil: Fenocchio, Alberto Sergio. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Departamento de Genética. Laboratorio de Citogenética General; Argentina.es_AR
dc.descriptionFil: Giuliano-Caetano, Lucia. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Biología General. Laboratorio de Citogenética Animal; Brasil.es_AR
dc.description.abstractThe family Doradidae (Siluriformes) is an important group of fishes endemic to freshwater ecosystems in South America. Some cytogenetic studies have been conducted focused on the group; however, there are no reports on the occurrence of B chromosomes for the family. In this paper the chromosomal characteristics of Platydoras armatulus (Valenciennes, 1840), Pterodoras granulosus (Valenciennes, 1821) and Ossancora punctata (Kner, 1855) were investigated through classical cytogenetics approaches. The conventional staining reveals 2n=58 in Platydoras armatulus and Pterodoras granulosus, however with distinct karyotypic formulae, possibly originated by pericentric inversions. In Ossancora punctata a derivate karyotype was described with 2n=66 and predominance of acrocentric chromosomes. The C banding pattern was resolutive in discriminating the three species, being considered an important cytotaxonomic marker. All species showed B chromosomes totally heterochromatic with non-Mendelian segregation during meiosis and low frequencies in mitotic cells. The probably origin of these additional elements was through fragmentations of chromosomes of the standard complement, which occurred recently and independently in these three species. The diploid number observed in O. punctata is an evidence of centric fusions and up to the moment it is the highest diploid number reported for Doradidae.en
dc.formatapplication/pdf
dc.format.extent555.1 KB
dc.language.isoengen
dc.publisherPensoften
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://compcytogen.pensoft.net/articles.php?id=10496
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectCentric fusiónen
dc.subjectChromosomal rearrangementsen
dc.subjectDiploid numberen
dc.subjectNeotropical fishen
dc.subjectPericentric inversionsen
dc.subjectSupernumerary chromosomeen
dc.titleFirst report of B chromosomes in three neotropical thorny catfishes (Siluriformes, Doradidae)en
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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