Karyotypic variability in Iheringichthys labrosus (Teleostei, Pimelodidae) from the Tibagi River basin (Paraná State, Brazil)

Detalhes bibliográficos
Autor(a) principal: Braga Ribeiro, Leila
Data de Publicação: 2008
Outros Autores: Matoso, D. A., Almeida, Mara Cristina de, Vicari, Marcelo Ricardo, Moraes-Neto, Américo, Svidnicki, Maria Carolina Costa Melo, Artoni, Roberto Ferreira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional do INPA
Texto Completo: https://repositorio.inpa.gov.br/handle/1/15008
Resumo: Cytogenetic analyses were carried out in a populational sample of Iheringichthys labrosus from the Guaraúna River (Upper Tibagi River; Paraná State, Brazil) in order to provide a karyotypic comparison with another previously studied population from the Lower Tibagi River, characterized by the presence of 32m + 8sm + 6st + 10a (2n = 56, FN = 102) and occurrence of supernumerary chromosomes (80% of individuals). The 17 specimens of I. labrosus (6 females, 10 males and 1 of unknown sex) from the Upper Tibagi River showed 2n = 56 chromosomes, a karyotype formula of 14m + 32sm + 4st + 6a (FN = 106), without evidence of sex chromosome heteromorphism or supernumerary chromosomes. The heterochromatin was detected at telomeric and centromeric positions in several chromosomal pairs. The Ag-nucleolar organizer regions were heteromorphic and located at terminal position on short arms of the 16th chromosomal pair, suggesting a positive association with heterochromatic regions. The inter-populational karyotypic differentiation reported indicates distinct evolutionary pathways within I. labrosus in the Tibagi River basin. ©FUNPEC-RP.
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spelling Braga Ribeiro, LeilaMatoso, D. A.Almeida, Mara Cristina deVicari, Marcelo RicardoMoraes-Neto, AméricoSvidnicki, Maria Carolina Costa MeloArtoni, Roberto Ferreira2020-05-07T14:00:30Z2020-05-07T14:00:30Z2008https://repositorio.inpa.gov.br/handle/1/1500810.4238/vol7-3gmr456Cytogenetic analyses were carried out in a populational sample of Iheringichthys labrosus from the Guaraúna River (Upper Tibagi River; Paraná State, Brazil) in order to provide a karyotypic comparison with another previously studied population from the Lower Tibagi River, characterized by the presence of 32m + 8sm + 6st + 10a (2n = 56, FN = 102) and occurrence of supernumerary chromosomes (80% of individuals). The 17 specimens of I. labrosus (6 females, 10 males and 1 of unknown sex) from the Upper Tibagi River showed 2n = 56 chromosomes, a karyotype formula of 14m + 32sm + 4st + 6a (FN = 106), without evidence of sex chromosome heteromorphism or supernumerary chromosomes. The heterochromatin was detected at telomeric and centromeric positions in several chromosomal pairs. The Ag-nucleolar organizer regions were heteromorphic and located at terminal position on short arms of the 16th chromosomal pair, suggesting a positive association with heterochromatic regions. The inter-populational karyotypic differentiation reported indicates distinct evolutionary pathways within I. labrosus in the Tibagi River basin. ©FUNPEC-RP.Volume 7, Número 3, Pags. 718-724Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessBrasilChromosome AnalysisChromosome PairingControlled StudyHeterochromatinKaryotypingMetaphaseNonhumanRiver BasinSupernumerary ChromosomeTeleostIheringichthys LabrosusPimelodidaeTeleosteiKaryotypic variability in Iheringichthys labrosus (Teleostei, Pimelodidae) from the Tibagi River basin (Paraná State, Brazil)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGenetics and Molecular Researchengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfapplication/pdf1083971https://repositorio.inpa.gov.br/bitstream/1/15008/1/artigo-inpa.pdf0e4b150153f9419f3d7714b2b7df7d4dMD51CC-LICENSElicense_rdfapplication/octet-stream914https://repositorio.inpa.gov.br/bitstream/1/15008/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD521/150082020-07-14 10:30:50.07oai:repositorio:1/15008Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-14T14:30:50Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false
dc.title.en.fl_str_mv Karyotypic variability in Iheringichthys labrosus (Teleostei, Pimelodidae) from the Tibagi River basin (Paraná State, Brazil)
title Karyotypic variability in Iheringichthys labrosus (Teleostei, Pimelodidae) from the Tibagi River basin (Paraná State, Brazil)
spellingShingle Karyotypic variability in Iheringichthys labrosus (Teleostei, Pimelodidae) from the Tibagi River basin (Paraná State, Brazil)
Braga Ribeiro, Leila
Brasil
Chromosome Analysis
Chromosome Pairing
Controlled Study
Heterochromatin
Karyotyping
Metaphase
Nonhuman
River Basin
Supernumerary Chromosome
Teleost
Iheringichthys Labrosus
Pimelodidae
Teleostei
title_short Karyotypic variability in Iheringichthys labrosus (Teleostei, Pimelodidae) from the Tibagi River basin (Paraná State, Brazil)
title_full Karyotypic variability in Iheringichthys labrosus (Teleostei, Pimelodidae) from the Tibagi River basin (Paraná State, Brazil)
title_fullStr Karyotypic variability in Iheringichthys labrosus (Teleostei, Pimelodidae) from the Tibagi River basin (Paraná State, Brazil)
title_full_unstemmed Karyotypic variability in Iheringichthys labrosus (Teleostei, Pimelodidae) from the Tibagi River basin (Paraná State, Brazil)
title_sort Karyotypic variability in Iheringichthys labrosus (Teleostei, Pimelodidae) from the Tibagi River basin (Paraná State, Brazil)
author Braga Ribeiro, Leila
author_facet Braga Ribeiro, Leila
Matoso, D. A.
Almeida, Mara Cristina de
Vicari, Marcelo Ricardo
Moraes-Neto, Américo
Svidnicki, Maria Carolina Costa Melo
Artoni, Roberto Ferreira
author_role author
author2 Matoso, D. A.
Almeida, Mara Cristina de
Vicari, Marcelo Ricardo
Moraes-Neto, Américo
Svidnicki, Maria Carolina Costa Melo
Artoni, Roberto Ferreira
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Braga Ribeiro, Leila
Matoso, D. A.
Almeida, Mara Cristina de
Vicari, Marcelo Ricardo
Moraes-Neto, Américo
Svidnicki, Maria Carolina Costa Melo
Artoni, Roberto Ferreira
dc.subject.eng.fl_str_mv Brasil
Chromosome Analysis
Chromosome Pairing
Controlled Study
Heterochromatin
Karyotyping
Metaphase
Nonhuman
River Basin
Supernumerary Chromosome
Teleost
Iheringichthys Labrosus
Pimelodidae
Teleostei
topic Brasil
Chromosome Analysis
Chromosome Pairing
Controlled Study
Heterochromatin
Karyotyping
Metaphase
Nonhuman
River Basin
Supernumerary Chromosome
Teleost
Iheringichthys Labrosus
Pimelodidae
Teleostei
description Cytogenetic analyses were carried out in a populational sample of Iheringichthys labrosus from the Guaraúna River (Upper Tibagi River; Paraná State, Brazil) in order to provide a karyotypic comparison with another previously studied population from the Lower Tibagi River, characterized by the presence of 32m + 8sm + 6st + 10a (2n = 56, FN = 102) and occurrence of supernumerary chromosomes (80% of individuals). The 17 specimens of I. labrosus (6 females, 10 males and 1 of unknown sex) from the Upper Tibagi River showed 2n = 56 chromosomes, a karyotype formula of 14m + 32sm + 4st + 6a (FN = 106), without evidence of sex chromosome heteromorphism or supernumerary chromosomes. The heterochromatin was detected at telomeric and centromeric positions in several chromosomal pairs. The Ag-nucleolar organizer regions were heteromorphic and located at terminal position on short arms of the 16th chromosomal pair, suggesting a positive association with heterochromatic regions. The inter-populational karyotypic differentiation reported indicates distinct evolutionary pathways within I. labrosus in the Tibagi River basin. ©FUNPEC-RP.
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2020-05-07T14:00:30Z
dc.date.available.fl_str_mv 2020-05-07T14:00:30Z
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 https://repositorio.inpa.gov.br/handle/1/15008
dc.identifier.doi.none.fl_str_mv 10.4238/vol7-3gmr456
url https://repositorio.inpa.gov.br/handle/1/15008
identifier_str_mv 10.4238/vol7-3gmr456
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Volume 7, Número 3, Pags. 718-724
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Genetics and Molecular Research
publisher.none.fl_str_mv Genetics and Molecular Research
dc.source.none.fl_str_mv reponame:Repositório Institucional do INPA
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instacron_str INPA
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reponame_str Repositório Institucional do INPA
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