Abnormal spindles in second meiosis in canola (Brassica napus and Brassica campestris)

Detalhes bibliográficos
Autor(a) principal: Souza,Alice Maria de
Data de Publicação: 1999
Outros Autores: Pagliarini,Maria Suely, Carraro,Ivo Marcos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Archives of Biology and Technology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100007
Resumo: Studies were carried out on the occurrence of abnormal spindles in the second meiotic division in some canola cultivars recently introduced in Brazil. Fusion of spindles was observed in metaphase II rejoining the two sets of chromosomes segregated in anaphase I and also sequential and tripolar spindles were discovered rejoining two sets of chromatids segregated in anaphase II. The frequency of cells with abnormal spindles ranged from 3.18 to 8.10%. The results suggested that this abnormality was caused by environmental stress that affected the plants during the blooming period.
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spelling Abnormal spindles in second meiosis in canola (Brassica napus and Brassica campestris)CanolaBrasssica napus,Brassica campestrisAbnormal spindlesUnreduced gametesStudies were carried out on the occurrence of abnormal spindles in the second meiotic division in some canola cultivars recently introduced in Brazil. Fusion of spindles was observed in metaphase II rejoining the two sets of chromosomes segregated in anaphase I and also sequential and tripolar spindles were discovered rejoining two sets of chromatids segregated in anaphase II. The frequency of cells with abnormal spindles ranged from 3.18 to 8.10%. The results suggested that this abnormality was caused by environmental stress that affected the plants during the blooming period.Instituto de Tecnologia do Paraná - Tecpar1999-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100007Brazilian Archives of Biology and Technology v.42 n.1 1999reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/S1516-89131999000100007info:eu-repo/semantics/openAccessSouza,Alice Maria dePagliarini,Maria SuelyCarraro,Ivo Marcoseng2011-06-03T00:00:00Zoai:scielo:S1516-89131999000100007Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2011-06-03T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false
dc.title.none.fl_str_mv Abnormal spindles in second meiosis in canola (Brassica napus and Brassica campestris)
title Abnormal spindles in second meiosis in canola (Brassica napus and Brassica campestris)
spellingShingle Abnormal spindles in second meiosis in canola (Brassica napus and Brassica campestris)
Souza,Alice Maria de
Canola
Brasssica napus,Brassica campestris
Abnormal spindles
Unreduced gametes
title_short Abnormal spindles in second meiosis in canola (Brassica napus and Brassica campestris)
title_full Abnormal spindles in second meiosis in canola (Brassica napus and Brassica campestris)
title_fullStr Abnormal spindles in second meiosis in canola (Brassica napus and Brassica campestris)
title_full_unstemmed Abnormal spindles in second meiosis in canola (Brassica napus and Brassica campestris)
title_sort Abnormal spindles in second meiosis in canola (Brassica napus and Brassica campestris)
author Souza,Alice Maria de
author_facet Souza,Alice Maria de
Pagliarini,Maria Suely
Carraro,Ivo Marcos
author_role author
author2 Pagliarini,Maria Suely
Carraro,Ivo Marcos
author2_role author
author
dc.contributor.author.fl_str_mv Souza,Alice Maria de
Pagliarini,Maria Suely
Carraro,Ivo Marcos
dc.subject.por.fl_str_mv Canola
Brasssica napus,Brassica campestris
Abnormal spindles
Unreduced gametes
topic Canola
Brasssica napus,Brassica campestris
Abnormal spindles
Unreduced gametes
description Studies were carried out on the occurrence of abnormal spindles in the second meiotic division in some canola cultivars recently introduced in Brazil. Fusion of spindles was observed in metaphase II rejoining the two sets of chromosomes segregated in anaphase I and also sequential and tripolar spindles were discovered rejoining two sets of chromatids segregated in anaphase II. The frequency of cells with abnormal spindles ranged from 3.18 to 8.10%. The results suggested that this abnormality was caused by environmental stress that affected the plants during the blooming period.
publishDate 1999
dc.date.none.fl_str_mv 1999-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-89131999000100007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
dc.source.none.fl_str_mv Brazilian Archives of Biology and Technology v.42 n.1 1999
reponame:Brazilian Archives of Biology and Technology
instname:Instituto de Tecnologia do Paraná (Tecpar)
instacron:TECPAR
instname_str Instituto de Tecnologia do Paraná (Tecpar)
instacron_str TECPAR
institution TECPAR
reponame_str Brazilian Archives of Biology and Technology
collection Brazilian Archives of Biology and Technology
repository.name.fl_str_mv Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)
repository.mail.fl_str_mv babt@tecpar.br||babt@tecpar.br
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