Abnormal meiotic behavior in three species of Crotalaria
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/2332 |
Resumo: | The objective of this work was to compare the meiotic behavior and pollen grain viability of three species of Crotalaria. Slides for meiotic analysis were prepared by the air-drying technique. Pollen grain viability was measured by three staining procedures (Alexander's solution, tetrazolium chloride and fluorescein diacetate) and in vitro germination in a sucrose solution. Eight bivalents were observed, confirming previous reports on populations from other regions of Brazil, as well as from other countries. All species showed abnormal meiotic behavior as follows: in Crotalaria micans, cytomixis and abnormal chromosome pairing in diakinesis; in C. spectabilis, abnormal chromosome pairing in diplotene; in C. zanzibarica, shrunk nuclei in leptotene and zygotene. Pollen grains of all three species show low viability, which may be associated with the irregularities of the meiotic behavior. |
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Abnormal meiotic behavior in three species of CrotalariaComportamento meiótico anormal em três espécies de CrotalariaCrotalaria; cytogenetics; cytomixis; meiosis; pollen grain viabilityCrotalaria; citogenética; citomixia; meiose; viabilidade do grão de pólenThe objective of this work was to compare the meiotic behavior and pollen grain viability of three species of Crotalaria. Slides for meiotic analysis were prepared by the air-drying technique. Pollen grain viability was measured by three staining procedures (Alexander's solution, tetrazolium chloride and fluorescein diacetate) and in vitro germination in a sucrose solution. Eight bivalents were observed, confirming previous reports on populations from other regions of Brazil, as well as from other countries. All species showed abnormal meiotic behavior as follows: in Crotalaria micans, cytomixis and abnormal chromosome pairing in diakinesis; in C. spectabilis, abnormal chromosome pairing in diplotene; in C. zanzibarica, shrunk nuclei in leptotene and zygotene. Pollen grains of all three species show low viability, which may be associated with the irregularities of the meiotic behavior.O objetivo deste trabalho foi comparar o comportamento meiótico e a viabilidade dos grãos de pólen de três espécies de Crotalaria. A análise meiótica foi realizada por meio da técnica de secagem ao ar. A viabilidade dos grãos de pólen foi avaliada por testes de coloração (corante de Alexander, cloreto de tetrazólio e diacetato de fluoresceína) e por teste de germinação em solução de sacarose. Foram observados oito bivalentes, confirmando relatos prévios em populações de outras regiões do Brasil e de outros países. As três espécies apresentaram comportamento meiótico irregular: em Crotalaria micans, citomixia e pareamento irregular na diacinese; em C. spectabilis, pareamento irregular no diplóteno; e em C. zanzibarica, núcleo fortemente condensado nas fases de leptóteno e zigóteno. A viabilidade dos grãos de pólen das três espécies é baixa, o que pode estar associado às irregularidades do comportamento meiótico.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)Ferreira, KátiaTorres, Giovana AugustaCarvalho, Isabelle Vilela deDavide, Lisete Chamma2010-12-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/2332Pesquisa Agropecuaria Brasileira; v.44, n.12, dez. 2009; 1641-1646Pesquisa Agropecuária Brasileira; v.44, n.12, dez. 2009; 1641-16461678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/2332/5911https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/1731https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/1732https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/1733https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/1734https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/1735https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/2447https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/2448https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/2449https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/2450info:eu-repo/semantics/openAccess2012-06-17T11:54:27Zoai:ojs.seer.sct.embrapa.br:article/2332Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2012-06-17T11:54:27Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Abnormal meiotic behavior in three species of Crotalaria Comportamento meiótico anormal em três espécies de Crotalaria |
title |
Abnormal meiotic behavior in three species of Crotalaria |
spellingShingle |
Abnormal meiotic behavior in three species of Crotalaria Ferreira, Kátia Crotalaria; cytogenetics; cytomixis; meiosis; pollen grain viability Crotalaria; citogenética; citomixia; meiose; viabilidade do grão de pólen |
title_short |
Abnormal meiotic behavior in three species of Crotalaria |
title_full |
Abnormal meiotic behavior in three species of Crotalaria |
title_fullStr |
Abnormal meiotic behavior in three species of Crotalaria |
title_full_unstemmed |
Abnormal meiotic behavior in three species of Crotalaria |
title_sort |
Abnormal meiotic behavior in three species of Crotalaria |
author |
Ferreira, Kátia |
author_facet |
Ferreira, Kátia Torres, Giovana Augusta Carvalho, Isabelle Vilela de Davide, Lisete Chamma |
author_role |
author |
author2 |
Torres, Giovana Augusta Carvalho, Isabelle Vilela de Davide, Lisete Chamma |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) |
dc.contributor.author.fl_str_mv |
Ferreira, Kátia Torres, Giovana Augusta Carvalho, Isabelle Vilela de Davide, Lisete Chamma |
dc.subject.por.fl_str_mv |
Crotalaria; cytogenetics; cytomixis; meiosis; pollen grain viability Crotalaria; citogenética; citomixia; meiose; viabilidade do grão de pólen |
topic |
Crotalaria; cytogenetics; cytomixis; meiosis; pollen grain viability Crotalaria; citogenética; citomixia; meiose; viabilidade do grão de pólen |
description |
The objective of this work was to compare the meiotic behavior and pollen grain viability of three species of Crotalaria. Slides for meiotic analysis were prepared by the air-drying technique. Pollen grain viability was measured by three staining procedures (Alexander's solution, tetrazolium chloride and fluorescein diacetate) and in vitro germination in a sucrose solution. Eight bivalents were observed, confirming previous reports on populations from other regions of Brazil, as well as from other countries. All species showed abnormal meiotic behavior as follows: in Crotalaria micans, cytomixis and abnormal chromosome pairing in diakinesis; in C. spectabilis, abnormal chromosome pairing in diplotene; in C. zanzibarica, shrunk nuclei in leptotene and zygotene. Pollen grains of all three species show low viability, which may be associated with the irregularities of the meiotic behavior. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-12-22 |
dc.type.none.fl_str_mv |
|
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 |
https://seer.sct.embrapa.br/index.php/pab/article/view/2332 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/2332 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/2332/5911 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/1731 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/1732 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/1733 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/1734 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/1735 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/2447 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/2448 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/2449 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2332/2450 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.44, n.12, dez. 2009; 1641-1646 Pesquisa Agropecuária Brasileira; v.44, n.12, dez. 2009; 1641-1646 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416677623332864 |