Cytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae)
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/14964 |
Resumo: | The giant otter, Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae), was widely distributed in South America but stable populations are now only found in the Pantanal and Amazon regions and the species is classified as endangered. There is only one recognized species of giant otter, although two subspecies of doubtful value have also been cited in the literature. We present the first karyotype of four captive P. brasiliensis specimens, all of which posses 2n = 38 chromosomes as 14M+8SM+6ST+8A and one pair of sexual chromosomes. An heteromorphic secondary constriction, associated with the nucleolar organizer region (NOR), was seen on the long arms of chromosome pair 17. The C-banding technique revealed heterochromatin in the centromeric region of all the chromosomes and the NOR was C-banding positive. The giant otter presented the same diploid number as most mustelids, although its karyotype is quite species-specific. Copyright by the Brazilian Society of Genetics. |
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Franco-De-Sá, Jorge Felipe OliveiraWeber Rosas, Fernando CesarFeldberg, Eliana2020-05-07T13:59:11Z2020-05-07T13:59:11Z2007https://repositorio.inpa.gov.br/handle/1/1496410.1590/S1415-47572007000600011The giant otter, Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae), was widely distributed in South America but stable populations are now only found in the Pantanal and Amazon regions and the species is classified as endangered. There is only one recognized species of giant otter, although two subspecies of doubtful value have also been cited in the literature. We present the first karyotype of four captive P. brasiliensis specimens, all of which posses 2n = 38 chromosomes as 14M+8SM+6ST+8A and one pair of sexual chromosomes. An heteromorphic secondary constriction, associated with the nucleolar organizer region (NOR), was seen on the long arms of chromosome pair 17. The C-banding technique revealed heterochromatin in the centromeric region of all the chromosomes and the NOR was C-banding positive. The giant otter presented the same diploid number as most mustelids, although its karyotype is quite species-specific. Copyright by the Brazilian Society of Genetics.Volume 30, Número 4, Pags. 1093-1096Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessCarnivoraCentromereChromosome 17Chromosome AnalysisChromosome C BandChromosome NorChromosome PairingControlled StudyCytogeneticsDiploidyFemaleHeterochromatinKaryotypeMaleNonhumanSex ChromosomeSpecies DifferenceCarnivoraLutrinaeMammaliaMustelidaePteronura BrasiliensisCytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGenetics and Molecular Biologyengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfapplication/pdf110938https://repositorio.inpa.gov.br/bitstream/1/14964/1/artigo-inpa.pdf54c47d57e3b4788c86689d633352c983MD51CC-LICENSElicense_rdfapplication/octet-stream914https://repositorio.inpa.gov.br/bitstream/1/14964/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD521/149642020-07-14 10:30:03.823oai:repositorio:1/14964Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-14T14:30:03Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.en.fl_str_mv |
Cytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae) |
title |
Cytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae) |
spellingShingle |
Cytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae) Franco-De-Sá, Jorge Felipe Oliveira Carnivora Centromere Chromosome 17 Chromosome Analysis Chromosome C Band Chromosome Nor Chromosome Pairing Controlled Study Cytogenetics Diploidy Female Heterochromatin Karyotype Male Nonhuman Sex Chromosome Species Difference Carnivora Lutrinae Mammalia Mustelidae Pteronura Brasiliensis |
title_short |
Cytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae) |
title_full |
Cytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae) |
title_fullStr |
Cytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae) |
title_full_unstemmed |
Cytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae) |
title_sort |
Cytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae) |
author |
Franco-De-Sá, Jorge Felipe Oliveira |
author_facet |
Franco-De-Sá, Jorge Felipe Oliveira Weber Rosas, Fernando Cesar Feldberg, Eliana |
author_role |
author |
author2 |
Weber Rosas, Fernando Cesar Feldberg, Eliana |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Franco-De-Sá, Jorge Felipe Oliveira Weber Rosas, Fernando Cesar Feldberg, Eliana |
dc.subject.eng.fl_str_mv |
Carnivora Centromere Chromosome 17 Chromosome Analysis Chromosome C Band Chromosome Nor Chromosome Pairing Controlled Study Cytogenetics Diploidy Female Heterochromatin Karyotype Male Nonhuman Sex Chromosome Species Difference Carnivora Lutrinae Mammalia Mustelidae Pteronura Brasiliensis |
topic |
Carnivora Centromere Chromosome 17 Chromosome Analysis Chromosome C Band Chromosome Nor Chromosome Pairing Controlled Study Cytogenetics Diploidy Female Heterochromatin Karyotype Male Nonhuman Sex Chromosome Species Difference Carnivora Lutrinae Mammalia Mustelidae Pteronura Brasiliensis |
description |
The giant otter, Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae), was widely distributed in South America but stable populations are now only found in the Pantanal and Amazon regions and the species is classified as endangered. There is only one recognized species of giant otter, although two subspecies of doubtful value have also been cited in the literature. We present the first karyotype of four captive P. brasiliensis specimens, all of which posses 2n = 38 chromosomes as 14M+8SM+6ST+8A and one pair of sexual chromosomes. An heteromorphic secondary constriction, associated with the nucleolar organizer region (NOR), was seen on the long arms of chromosome pair 17. The C-banding technique revealed heterochromatin in the centromeric region of all the chromosomes and the NOR was C-banding positive. The giant otter presented the same diploid number as most mustelids, although its karyotype is quite species-specific. Copyright by the Brazilian Society of Genetics. |
publishDate |
2007 |
dc.date.issued.fl_str_mv |
2007 |
dc.date.accessioned.fl_str_mv |
2020-05-07T13:59:11Z |
dc.date.available.fl_str_mv |
2020-05-07T13:59:11Z |
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/1/14964 |
dc.identifier.doi.none.fl_str_mv |
10.1590/S1415-47572007000600011 |
url |
https://repositorio.inpa.gov.br/handle/1/14964 |
identifier_str_mv |
10.1590/S1415-47572007000600011 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 30, Número 4, Pags. 1093-1096 |
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 Biology |
publisher.none.fl_str_mv |
Genetics and Molecular Biology |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional do INPA instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
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Repositório Institucional do INPA |
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