Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genus

Background: Nowadays, the genus Bryconamericus is placed in subfamily Stevardiinae within of Characidae, but not shows consistent evidence of monophyletism. The purpose of this work was to study the chromosomes of three species of Bryconamericus, aiming to add cytogenetic knowledge and contribute to...

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Detalles Bibliográficos
Autores: Piscor, Diovani [UNESP], Ribacinko-Piscor, Daniela Bocagini [UNESP], Fernandes, Carlos Alexandre, Parise-Maltempi, Patricia Pasquali [UNESP]
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/112707
Acceso en línea:http://dx.doi.org/10.1186/1755-8166-6-13
http://hdl.handle.net/11449/112707
Access Level:acceso abierto
Palabra clave:Chromosomes
Heterochromatin
NOR
FISH
rDNA probe
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spelling Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genusChromosomesHeterochromatinNORFISHrDNA probeBackground: Nowadays, the genus Bryconamericus is placed in subfamily Stevardiinae within of Characidae, but not shows consistent evidence of monophyletism. The purpose of this work was to study the chromosomes of three species of Bryconamericus, aiming to add cytogenetic knowledge and contribute to the understanding of the chromosomal evolution of this genus.Results: The chromosomes of three species of Bryconamericus were analyzed using cytogenetic techniques. The karyotype of Bryconamericus stramineus contained 6 metacentric (m) + 10 submetacentric (sm) + 16 subtelocentric (st) + 20 acrocentric (a), the fundamental number (FN) of 84, one silver impregnated (Ag-NOR) pair, one pair bearing the 18S ribosomal DNA sites, another pair bearing the 5S rDNA sites, and a few positive C-bands. Bryconamericus turiuba had a karyotype containing 8 m + 10sm + 14st + 20a (FN = 84), one chromosome pair Ag-NOR, two pairs bearing the 18S rDNA sites, two pairs bearing the 5S rDNA sites, and a few C-band regions. Bryconamericus cf. iheringii had a karyotype containing 10 m + 14sm + 18st + 10a (FN = 94), including one pair with a secondary constriction Ag-NOR positive. In this karyotype the fluorescent in situ hybridization (FISH) showed the 18S and 5S rDNA probe in adjacent position.Conclusions: The results obtained in this work showed different characteristics in the organization of two multigene families, indicating that distinct evolutionary forces acting on the diversity of rDNA sequences in the genome of three Bryconamericus species.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Estadual Paulista Julio Mesquita Filho UNESP, Inst Biociencias, Dept Biol, Lab Citogenet, BR-13506900 Rio Claro, SP, BrazilUniv Estadual Mato Grosso Sul UEMS, BR-79980000 Mundo Novo, MS, BrazilUniv Estadual Paulista Julio Mesquita Filho UNESP, Inst Biociencias, Dept Biol, Lab Citogenet, BR-13506900 Rio Claro, SP, BrazilBiomed Central Ltd.Universidade Estadual Paulista (Unesp)Universidade Estadual de Mato Grosso do Sul (UEMS)2014-12-03T13:11:00Z2014-12-03T13:11:00Z2013-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8application/pdfhttp://dx.doi.org/10.1186/1755-8166-6-13Molecular Cytogenetics. London: Biomed Central Ltd, v. 6, 8 p., 2013.1755-8166http://hdl.handle.net/11449/11270710.1186/1755-8166-6-13WOS:000317829800001WOS000317829800001.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMolecular Cytogenetics1.1670,623info:eu-repo/semantics/openAccessPiscor, Diovani [UNESP]Ribacinko-Piscor, Daniela Bocagini [UNESP]Fernandes, Carlos AlexandreParise-Maltempi, Patricia Pasquali [UNESP]2024-10-17T18:19:31Zoai:repositorio.unesp.br:11449/112707Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-10-17T18:19:31Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genus
title Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genus
spellingShingle Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genus
Piscor, Diovani [UNESP]
Chromosomes
Heterochromatin
NOR
FISH
rDNA probe
title_short Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genus
title_full Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genus
title_fullStr Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genus
title_full_unstemmed Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genus
title_sort Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genus
dc.creator.none.fl_str_mv Piscor, Diovani [UNESP]
Ribacinko-Piscor, Daniela Bocagini [UNESP]
Fernandes, Carlos Alexandre
Parise-Maltempi, Patricia Pasquali [UNESP]
author Piscor, Diovani [UNESP]
author_facet Piscor, Diovani [UNESP]
Ribacinko-Piscor, Daniela Bocagini [UNESP]
Fernandes, Carlos Alexandre
Parise-Maltempi, Patricia Pasquali [UNESP]
author_role author
author2 Ribacinko-Piscor, Daniela Bocagini [UNESP]
Fernandes, Carlos Alexandre
Parise-Maltempi, Patricia Pasquali [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Estadual de Mato Grosso do Sul (UEMS)
dc.subject.por.fl_str_mv Chromosomes
Heterochromatin
NOR
FISH
rDNA probe
topic Chromosomes
Heterochromatin
NOR
FISH
rDNA probe
description Background: Nowadays, the genus Bryconamericus is placed in subfamily Stevardiinae within of Characidae, but not shows consistent evidence of monophyletism. The purpose of this work was to study the chromosomes of three species of Bryconamericus, aiming to add cytogenetic knowledge and contribute to the understanding of the chromosomal evolution of this genus.Results: The chromosomes of three species of Bryconamericus were analyzed using cytogenetic techniques. The karyotype of Bryconamericus stramineus contained 6 metacentric (m) + 10 submetacentric (sm) + 16 subtelocentric (st) + 20 acrocentric (a), the fundamental number (FN) of 84, one silver impregnated (Ag-NOR) pair, one pair bearing the 18S ribosomal DNA sites, another pair bearing the 5S rDNA sites, and a few positive C-bands. Bryconamericus turiuba had a karyotype containing 8 m + 10sm + 14st + 20a (FN = 84), one chromosome pair Ag-NOR, two pairs bearing the 18S rDNA sites, two pairs bearing the 5S rDNA sites, and a few C-band regions. Bryconamericus cf. iheringii had a karyotype containing 10 m + 14sm + 18st + 10a (FN = 94), including one pair with a secondary constriction Ag-NOR positive. In this karyotype the fluorescent in situ hybridization (FISH) showed the 18S and 5S rDNA probe in adjacent position.Conclusions: The results obtained in this work showed different characteristics in the organization of two multigene families, indicating that distinct evolutionary forces acting on the diversity of rDNA sequences in the genome of three Bryconamericus species.
publishDate 2013
dc.date.none.fl_str_mv 2013-04-01
2014-12-03T13:11:00Z
2014-12-03T13:11:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1186/1755-8166-6-13
Molecular Cytogenetics. London: Biomed Central Ltd, v. 6, 8 p., 2013.
1755-8166
http://hdl.handle.net/11449/112707
10.1186/1755-8166-6-13
WOS:000317829800001
WOS000317829800001.pdf
url http://dx.doi.org/10.1186/1755-8166-6-13
http://hdl.handle.net/11449/112707
identifier_str_mv Molecular Cytogenetics. London: Biomed Central Ltd, v. 6, 8 p., 2013.
1755-8166
10.1186/1755-8166-6-13
WOS:000317829800001
WOS000317829800001.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Molecular Cytogenetics
1.167
0,623
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 8
application/pdf
dc.publisher.none.fl_str_mv Biomed Central Ltd.
publisher.none.fl_str_mv Biomed Central Ltd.
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
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score 15,300724

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