Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae - doi: 10.4025/actascibiolsci.v34i2.9318

Detalhes bibliográficos
Autor(a) principal: Endo, Kátia Sayuri
Data de Publicação: 2011
Outros Autores: Martinez, Emanuel Ricardo Monteiro, Zawadzki, Claudio Henrique, Paiva, Luiz Ricardo de Souza, Júlio Júnior, Horácio Ferreira
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Acta Scientiarum Biological Sciences
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9318
Resumo: Cytogenetic analyses were performed in four species of the Hypostominae subfamily, three from Hypostomus (Hypostomini) genus and Rhinelepis aspera (Rhinelepini). Three populations of Hypostomus ancistroides were analyzed, which had 2n=68 chromosomes, but presented different karyotype formulas. Hypostomus regani and H. strigaticeps, both from Ivaí river, showed 2n=72 chromosomes with two distinct cytotypes. In turn, R. aspera of the upper Paraná river basin presented 2n=54 chromosome. Multiple Nucleolar Organizer Regions (NORs) have been evidenced by silver nitrate staining in species of Hypostomus and single NOR in R. aspera. The observed variation in the chromosome number and the marked variability in karyotype formulas and NORs reveal a certain amount of karyotype variation in the genus Hypostomus suggesting the probable existence of cryptic species with independent chromosome traits. Therefore, our data can be of great value in discriminating species and understanding their chromosomal evolution.
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spelling Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae - doi: 10.4025/actascibiolsci.v34i2.9318chromosomal evolutioncryptic speciesNeotropical fishesNORGenética AnimalCytogenetic analyses were performed in four species of the Hypostominae subfamily, three from Hypostomus (Hypostomini) genus and Rhinelepis aspera (Rhinelepini). Three populations of Hypostomus ancistroides were analyzed, which had 2n=68 chromosomes, but presented different karyotype formulas. Hypostomus regani and H. strigaticeps, both from Ivaí river, showed 2n=72 chromosomes with two distinct cytotypes. In turn, R. aspera of the upper Paraná river basin presented 2n=54 chromosome. Multiple Nucleolar Organizer Regions (NORs) have been evidenced by silver nitrate staining in species of Hypostomus and single NOR in R. aspera. The observed variation in the chromosome number and the marked variability in karyotype formulas and NORs reveal a certain amount of karyotype variation in the genus Hypostomus suggesting the probable existence of cryptic species with independent chromosome traits. Therefore, our data can be of great value in discriminating species and understanding their chromosomal evolution.Universidade Estadual De Maringá2011-10-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionestudos cromossômicosapplication/pdfapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/931810.4025/actascibiolsci.v34i2.9318Acta Scientiarum. Biological Sciences; Vol 34 No 2 (2012); 181-189Acta Scientiarum. Biological Sciences; v. 34 n. 2 (2012); 181-1891807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9318/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9318/pdf_1Endo, Kátia SayuriMartinez, Emanuel Ricardo MonteiroZawadzki, Claudio HenriquePaiva, Luiz Ricardo de SouzaJúlio Júnior, Horácio Ferreirainfo:eu-repo/semantics/openAccess2022-11-23T17:34:02Zoai:periodicos.uem.br/ojs:article/9318Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:34:02Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae - doi: 10.4025/actascibiolsci.v34i2.9318
title Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae - doi: 10.4025/actascibiolsci.v34i2.9318
spellingShingle Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae - doi: 10.4025/actascibiolsci.v34i2.9318
Endo, Kátia Sayuri
chromosomal evolution
cryptic species
Neotropical fishes
NOR
Genética Animal
title_short Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae - doi: 10.4025/actascibiolsci.v34i2.9318
title_full Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae - doi: 10.4025/actascibiolsci.v34i2.9318
title_fullStr Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae - doi: 10.4025/actascibiolsci.v34i2.9318
title_full_unstemmed Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae - doi: 10.4025/actascibiolsci.v34i2.9318
title_sort Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae - doi: 10.4025/actascibiolsci.v34i2.9318
author Endo, Kátia Sayuri
author_facet Endo, Kátia Sayuri
Martinez, Emanuel Ricardo Monteiro
Zawadzki, Claudio Henrique
Paiva, Luiz Ricardo de Souza
Júlio Júnior, Horácio Ferreira
author_role author
author2 Martinez, Emanuel Ricardo Monteiro
Zawadzki, Claudio Henrique
Paiva, Luiz Ricardo de Souza
Júlio Júnior, Horácio Ferreira
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Endo, Kátia Sayuri
Martinez, Emanuel Ricardo Monteiro
Zawadzki, Claudio Henrique
Paiva, Luiz Ricardo de Souza
Júlio Júnior, Horácio Ferreira
dc.subject.por.fl_str_mv chromosomal evolution
cryptic species
Neotropical fishes
NOR
Genética Animal
topic chromosomal evolution
cryptic species
Neotropical fishes
NOR
Genética Animal
description Cytogenetic analyses were performed in four species of the Hypostominae subfamily, three from Hypostomus (Hypostomini) genus and Rhinelepis aspera (Rhinelepini). Three populations of Hypostomus ancistroides were analyzed, which had 2n=68 chromosomes, but presented different karyotype formulas. Hypostomus regani and H. strigaticeps, both from Ivaí river, showed 2n=72 chromosomes with two distinct cytotypes. In turn, R. aspera of the upper Paraná river basin presented 2n=54 chromosome. Multiple Nucleolar Organizer Regions (NORs) have been evidenced by silver nitrate staining in species of Hypostomus and single NOR in R. aspera. The observed variation in the chromosome number and the marked variability in karyotype formulas and NORs reveal a certain amount of karyotype variation in the genus Hypostomus suggesting the probable existence of cryptic species with independent chromosome traits. Therefore, our data can be of great value in discriminating species and understanding their chromosomal evolution.
publishDate 2011
dc.date.none.fl_str_mv 2011-10-21
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
estudos cromossômicos
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9318
10.4025/actascibiolsci.v34i2.9318
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9318
identifier_str_mv 10.4025/actascibiolsci.v34i2.9318
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9318/pdf
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9318/pdf_1
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Biological Sciences; Vol 34 No 2 (2012); 181-189
Acta Scientiarum. Biological Sciences; v. 34 n. 2 (2012); 181-189
1807-863X
1679-9283
reponame:Acta Scientiarum Biological Sciences
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum Biological Sciences
collection Acta Scientiarum Biological Sciences
repository.name.fl_str_mv Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)
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