Chromosomal characterization of amazonian freshwater stingrays with evidence for new karyomorphs and xx/xy sex chromosomes
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/14952 |
Resumo: | Cytogenetic studies in the subfamily Potamotrygoninae have provided valuable insights into the understanding of the evolution and diversification of its species. In the present study, the chromosomal features of seven nominal potamotrygonin species are provided: Plesiotrygon iwamae (2n=74, FN=120), Potamotrygon amazona (2n=66, FN=107), P. constellata (2n=66, FN=110), P. leopoldi (2n=64, FN=102), P. motoro (2n=66, FN=106) from four different localities, and P. orbignyi (2n=66, FN=106), P. scobina (2n=66, FN=104), from Central Amazon. Additionally, we found a new karyomorph in P. wallacei. We considered the localization of Nucleolus Organizer Regions (NORs), as well as the pattern of constitutive heterochromatin, as species-specific characters. We found an XX/XY sex chromosome system in P. orbignyi, and we suggest that P. scobina and P. amazona also possess the same sex chromosome system. Overall, the chromosomal evolution in this group appears to have progressed towards a reduction in diploid number, with a concomitant increase in the number of bi-armed and nucleolar chromosomes. © 2019, Brazilian Journal of Genetics. All rights reserved. |
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Valentim, Francisco Carlos Souza dePorto, Jorge Ivan RebeloFeldberg, Eliana2020-05-07T13:59:03Z2020-05-07T13:59:03Z2019https://repositorio.inpa.gov.br/handle/1/1495210.1590/1678-4685-gmb-2018-0229Cytogenetic studies in the subfamily Potamotrygoninae have provided valuable insights into the understanding of the evolution and diversification of its species. In the present study, the chromosomal features of seven nominal potamotrygonin species are provided: Plesiotrygon iwamae (2n=74, FN=120), Potamotrygon amazona (2n=66, FN=107), P. constellata (2n=66, FN=110), P. leopoldi (2n=64, FN=102), P. motoro (2n=66, FN=106) from four different localities, and P. orbignyi (2n=66, FN=106), P. scobina (2n=66, FN=104), from Central Amazon. Additionally, we found a new karyomorph in P. wallacei. We considered the localization of Nucleolus Organizer Regions (NORs), as well as the pattern of constitutive heterochromatin, as species-specific characters. We found an XX/XY sex chromosome system in P. orbignyi, and we suggest that P. scobina and P. amazona also possess the same sex chromosome system. Overall, the chromosomal evolution in this group appears to have progressed towards a reduction in diploid number, with a concomitant increase in the number of bi-armed and nucleolar chromosomes. © 2019, Brazilian Journal of Genetics. All rights reserved.Volume 42, Número 3, Pags. 578-593Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessChromosome AnalysisChromosome NorControlled StudyFemaleFreshwater SpeciesFreshwater StingrayHeterochromatinKaryotype 46,xxKaryotype 46,xyKaryotype EvolutionKaryotypingMaleNonhumanPlesiotrygon IwamaePotamotrygon AmazonaPotamotrygon ConstellataPotamotrygon LeopoldiPotamotrygon MotoroPotamotrygon OrbignyiPotamotrygon ScobinaPotamotrygon WallaceiTaxonomyChromosomal characterization of amazonian freshwater stingrays with evidence for new karyomorphs and xx/xy sex chromosomesinfo: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/pdf3597516https://repositorio.inpa.gov.br/bitstream/1/14952/1/artigo-inpa.pdfa8a6a1d46b87f6caf4b8df9c570707fbMD51CC-LICENSElicense_rdfapplication/octet-stream914https://repositorio.inpa.gov.br/bitstream/1/14952/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD521/149522020-07-14 10:29:47.358oai:repositorio:1/14952Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-14T14:29:47Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.en.fl_str_mv |
Chromosomal characterization of amazonian freshwater stingrays with evidence for new karyomorphs and xx/xy sex chromosomes |
title |
Chromosomal characterization of amazonian freshwater stingrays with evidence for new karyomorphs and xx/xy sex chromosomes |
spellingShingle |
Chromosomal characterization of amazonian freshwater stingrays with evidence for new karyomorphs and xx/xy sex chromosomes Valentim, Francisco Carlos Souza de Chromosome Analysis Chromosome Nor Controlled Study Female Freshwater Species Freshwater Stingray Heterochromatin Karyotype 46,xx Karyotype 46,xy Karyotype Evolution Karyotyping Male Nonhuman Plesiotrygon Iwamae Potamotrygon Amazona Potamotrygon Constellata Potamotrygon Leopoldi Potamotrygon Motoro Potamotrygon Orbignyi Potamotrygon Scobina Potamotrygon Wallacei Taxonomy |
title_short |
Chromosomal characterization of amazonian freshwater stingrays with evidence for new karyomorphs and xx/xy sex chromosomes |
title_full |
Chromosomal characterization of amazonian freshwater stingrays with evidence for new karyomorphs and xx/xy sex chromosomes |
title_fullStr |
Chromosomal characterization of amazonian freshwater stingrays with evidence for new karyomorphs and xx/xy sex chromosomes |
title_full_unstemmed |
Chromosomal characterization of amazonian freshwater stingrays with evidence for new karyomorphs and xx/xy sex chromosomes |
title_sort |
Chromosomal characterization of amazonian freshwater stingrays with evidence for new karyomorphs and xx/xy sex chromosomes |
author |
Valentim, Francisco Carlos Souza de |
author_facet |
Valentim, Francisco Carlos Souza de Porto, Jorge Ivan Rebelo Feldberg, Eliana |
author_role |
author |
author2 |
Porto, Jorge Ivan Rebelo Feldberg, Eliana |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Valentim, Francisco Carlos Souza de Porto, Jorge Ivan Rebelo Feldberg, Eliana |
dc.subject.eng.fl_str_mv |
Chromosome Analysis Chromosome Nor Controlled Study Female Freshwater Species Freshwater Stingray Heterochromatin Karyotype 46,xx Karyotype 46,xy Karyotype Evolution Karyotyping Male Nonhuman Plesiotrygon Iwamae Potamotrygon Amazona Potamotrygon Constellata Potamotrygon Leopoldi Potamotrygon Motoro Potamotrygon Orbignyi Potamotrygon Scobina Potamotrygon Wallacei Taxonomy |
topic |
Chromosome Analysis Chromosome Nor Controlled Study Female Freshwater Species Freshwater Stingray Heterochromatin Karyotype 46,xx Karyotype 46,xy Karyotype Evolution Karyotyping Male Nonhuman Plesiotrygon Iwamae Potamotrygon Amazona Potamotrygon Constellata Potamotrygon Leopoldi Potamotrygon Motoro Potamotrygon Orbignyi Potamotrygon Scobina Potamotrygon Wallacei Taxonomy |
description |
Cytogenetic studies in the subfamily Potamotrygoninae have provided valuable insights into the understanding of the evolution and diversification of its species. In the present study, the chromosomal features of seven nominal potamotrygonin species are provided: Plesiotrygon iwamae (2n=74, FN=120), Potamotrygon amazona (2n=66, FN=107), P. constellata (2n=66, FN=110), P. leopoldi (2n=64, FN=102), P. motoro (2n=66, FN=106) from four different localities, and P. orbignyi (2n=66, FN=106), P. scobina (2n=66, FN=104), from Central Amazon. Additionally, we found a new karyomorph in P. wallacei. We considered the localization of Nucleolus Organizer Regions (NORs), as well as the pattern of constitutive heterochromatin, as species-specific characters. We found an XX/XY sex chromosome system in P. orbignyi, and we suggest that P. scobina and P. amazona also possess the same sex chromosome system. Overall, the chromosomal evolution in this group appears to have progressed towards a reduction in diploid number, with a concomitant increase in the number of bi-armed and nucleolar chromosomes. © 2019, Brazilian Journal of Genetics. All rights reserved. |
publishDate |
2019 |
dc.date.issued.fl_str_mv |
2019 |
dc.date.accessioned.fl_str_mv |
2020-05-07T13:59:03Z |
dc.date.available.fl_str_mv |
2020-05-07T13:59:03Z |
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/1/14952 |
dc.identifier.doi.none.fl_str_mv |
10.1590/1678-4685-gmb-2018-0229 |
url |
https://repositorio.inpa.gov.br/handle/1/14952 |
identifier_str_mv |
10.1590/1678-4685-gmb-2018-0229 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 42, Número 3, Pags. 578-593 |
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 |
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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 |
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Repositório Institucional do INPA |
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