Mitotic and meiotic behavior of &gama; irradiated holocentric chromosomes of Rhynchospora pubera (Cyperaceae)

Detalhes bibliográficos
Autor(a) principal: Vanzela, André Luís Laforga
Data de Publicação: 2008
Outros Autores: Colaço, Waldeciro
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum Biological Sciences
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2364
Resumo: In order to evaluate the occurrence of diffuse kinetochores in Rhynchospora (Cyperaceae), chromosomes of R. pubera were fragmented or fused by &gama; irradiation. This material was investigated in subsequent cell generations, in both mitosis and meiosis. Alterations in number and size of chromosomes were detected, but the anaphase behavior of irradiated chromosomes was normal and no micronucleus was observed. All these data point to the presence of diffuse kinetochores in R. pubera.
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spelling Mitotic and meiotic behavior of &gama; irradiated holocentric chromosomes of Rhynchospora pubera (Cyperaceae)Comportamento mitótico e meiótico de cromossomos holocêntricos &gama; irradiados de Rhynchospora pubera (Cyperaceae)Cyperaceaeholocentric chromosomesmeiosismitosisRhynchospora2.00.00.00-6 Ciências BiológicasIn order to evaluate the occurrence of diffuse kinetochores in Rhynchospora (Cyperaceae), chromosomes of R. pubera were fragmented or fused by &gama; irradiation. This material was investigated in subsequent cell generations, in both mitosis and meiosis. Alterations in number and size of chromosomes were detected, but the anaphase behavior of irradiated chromosomes was normal and no micronucleus was observed. All these data point to the presence of diffuse kinetochores in R. pubera.Para avaliar a ocorrência de cinetócoros difusos em Rhynchospora (Cyperaceae), cromossomos de R. pubera foram fragmentados ou fundidos por irradiação &gama;. Este material foi investigado nas gerações celulares subseqüentes, em ambas, mitose e meiose. Alterações no número e no tamanho dos cromossomos foram detectadas, mas o comportamento dos cromossomos irradiados foi normal e nenhum micronúcleo foi observado. Todos os dados apontam para a presença de cinetócoros difusos em R. pubera.Universidade Estadual De Maringá2008-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/236410.4025/actascibiolsci.v24i0.2364Acta Scientiarum. Biological Sciences; Vol 24 (2002); 611-614Acta Scientiarum. Biological Sciences; v. 24 (2002); 611-6141807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMVanzela, André Luís LaforgaColaço, Waldeciroporinfo:eu-repo/semantics/openAccess2022-11-23T17:33:24Zoai:periodicos.uem.br/ojs:article/2364Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:24Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Mitotic and meiotic behavior of &gama; irradiated holocentric chromosomes of Rhynchospora pubera (Cyperaceae)
Comportamento mitótico e meiótico de cromossomos holocêntricos &gama; irradiados de Rhynchospora pubera (Cyperaceae)
title Mitotic and meiotic behavior of &gama; irradiated holocentric chromosomes of Rhynchospora pubera (Cyperaceae)
spellingShingle Mitotic and meiotic behavior of &gama; irradiated holocentric chromosomes of Rhynchospora pubera (Cyperaceae)
Vanzela, André Luís Laforga
Cyperaceae
holocentric chromosomes
meiosis
mitosis
Rhynchospora
2.00.00.00-6 Ciências Biológicas
title_short Mitotic and meiotic behavior of &gama; irradiated holocentric chromosomes of Rhynchospora pubera (Cyperaceae)
title_full Mitotic and meiotic behavior of &gama; irradiated holocentric chromosomes of Rhynchospora pubera (Cyperaceae)
title_fullStr Mitotic and meiotic behavior of &gama; irradiated holocentric chromosomes of Rhynchospora pubera (Cyperaceae)
title_full_unstemmed Mitotic and meiotic behavior of &gama; irradiated holocentric chromosomes of Rhynchospora pubera (Cyperaceae)
title_sort Mitotic and meiotic behavior of &gama; irradiated holocentric chromosomes of Rhynchospora pubera (Cyperaceae)
author Vanzela, André Luís Laforga
author_facet Vanzela, André Luís Laforga
Colaço, Waldeciro
author_role author
author2 Colaço, Waldeciro
author2_role author
dc.contributor.author.fl_str_mv Vanzela, André Luís Laforga
Colaço, Waldeciro
dc.subject.por.fl_str_mv Cyperaceae
holocentric chromosomes
meiosis
mitosis
Rhynchospora
2.00.00.00-6 Ciências Biológicas
topic Cyperaceae
holocentric chromosomes
meiosis
mitosis
Rhynchospora
2.00.00.00-6 Ciências Biológicas
description In order to evaluate the occurrence of diffuse kinetochores in Rhynchospora (Cyperaceae), chromosomes of R. pubera were fragmented or fused by &gama; irradiation. This material was investigated in subsequent cell generations, in both mitosis and meiosis. Alterations in number and size of chromosomes were detected, but the anaphase behavior of irradiated chromosomes was normal and no micronucleus was observed. All these data point to the presence of diffuse kinetochores in R. pubera.
publishDate 2008
dc.date.none.fl_str_mv 2008-05-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2364
10.4025/actascibiolsci.v24i0.2364
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2364
identifier_str_mv 10.4025/actascibiolsci.v24i0.2364
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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 24 (2002); 611-614
Acta Scientiarum. Biological Sciences; v. 24 (2002); 611-614
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)
repository.mail.fl_str_mv ||actabiol@uem.br
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