Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin

Fil: Swarça, Ana Claudia. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Histología; Brasil.

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Detalles Bibliográficos
Autores principales: Swarça, Ana Claudia, Dias, Ana Lucia, Fenocchio, Alberto Sergio
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: Pensoft 2017
Materias:
Neotropical fish
Parrot catfish
Karyotype
Ag-NORs
18S rDNA
CMA3
C-banding
Acceso en línea:https://hdl.handle.net/20.500.12219/4338
Aporte de:
Repositorio Institucional Digital de la UNaM (RIDUNAM) de Universidad Nacional de Misiones
id I77-R195-20.500.12219-4338
record_format dspace
spelling I77-R195-20.500.12219-43382024-06-04T10:15:25Z Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin Swarça, Ana Claudia Dias, Ana Lucia Fenocchio, Alberto Sergio Neotropical fish Parrot catfish Karyotype Ag-NORs 18S rDNA CMA3 C-banding Fil: Swarça, Ana Claudia. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Histología; Brasil. Fil: Dias, Ana Lucia. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Histología; Brasil. Fil: Fenocchio, Alberto Sergio. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Departamento de Genética; Argentina. Fil: Fenocchio, Alberto Sergio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Biología Subtropical; Argentina. Fil: Fenocchio, Alberto Sergio. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Biología Subtropical; Argentina. The objective of this study was to cytogenetically analyze Phractocephalus hemioliopterus comparing the findings with other data to infer relationships among Pimelodidae species. The results revealed a diploid number of 2n = 56 and the karyotype composed of 16 metacentric, 20 submetacentric, 6 subtelocentric and 14 acrocentric chromosomes (FN = 98). The Ag-NORs, 18S rDNA and CMA3 signals were coincident in location occupying the short arm of an acrocentric chromosome pair (23th), in a secondary constriction. The 5S rDNA genes were localized near the centromere on the short arms of one submetacentric chromosome pair. C-bands were localized predominantly in the terminal regions of chromosomes, including the AgNORs and a small metacentric pair with a conspicuous positive band on interstitial region. This chromosome pair could be considered a species-specific cytogenetic marker. 2017-03-06 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://hdl.handle.net/20.500.12219/4338 eng info:eu-repo/semantics/altIdentifier/url/https://compcytogen.pensoft.net/article/11152/ info:eu-repo/semantics/openAccess application/pdf application/pdf 464.9 KB Pensoft
institution Universidad Nacional de Misiones
institution_str I-77
repository_str R-195
collection Repositorio Institucional Digital de la UNaM (RIDUNAM)
language Inglés
topic Neotropical fish
Parrot catfish
Karyotype
Ag-NORs
18S rDNA
CMA3
C-banding
spellingShingle Neotropical fish
Parrot catfish
Karyotype
Ag-NORs
18S rDNA
CMA3
C-banding
Swarça, Ana Claudia
Dias, Ana Lucia
Fenocchio, Alberto Sergio
Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin
topic_facet Neotropical fish
Parrot catfish
Karyotype
Ag-NORs
18S rDNA
CMA3
C-banding
description Fil: Swarça, Ana Claudia. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Histología; Brasil.
format Artículo
Artículo
publishedVersion
author Swarça, Ana Claudia
Dias, Ana Lucia
Fenocchio, Alberto Sergio
author_facet Swarça, Ana Claudia
Dias, Ana Lucia
Fenocchio, Alberto Sergio
author_sort Swarça, Ana Claudia
title Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin
title_short Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin
title_full Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin
title_fullStr Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin
title_full_unstemmed Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin
title_sort cytogenetic studies in the redtail catfish, phractocephalus hemioliopterus (bloch & schneider, 1801) (siluriformes, pimelodidae) a giant fish from amazon basin
publisher Pensoft
publishDate 2017
url https://hdl.handle.net/20.500.12219/4338
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