Abnormal meiotic behavior in three species of crotalaria

Detalhes bibliográficos
Autor(a) principal: Ferreira, Kátia
Data de Publicação: 2009
Outros Autores: Torres, Giovana Augusta, Carvalho, Isabelle Vilela de, Davide, Lisete Chamma
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/37369
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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spelling Abnormal meiotic behavior in three species of crotalariaComportamento meiótico anormal em três espécies de CrotalariaCrotalariaCytogeneticsCytomixisMeiosisPollen grain viabilityCitogenéticaCitomixiaMeioseThe 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.Embrapa Secretaria de Pesquisa e Desenvolvimento Pesquisa Agropecuária Brasileira2019-10-29T16:35:23Z2019-10-29T16:35:23Z2009-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFERREIRA, K. et al. Abnormal meiotic behavior in three species of crotalaria. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 12, p. 1641-1646, Dec. 2009http://repositorio.ufla.br/jspui/handle/1/37369Pesquisa Agropecuária Brasileirareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessFerreira, KátiaTorres, Giovana AugustaCarvalho, Isabelle Vilela deDavide, Lisete Chammaeng2019-10-29T16:35:54Zoai:localhost:1/37369Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-10-29T16:35:54Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)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
Citogenética
Citomixia
Meiose
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.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
Citogenética
Citomixia
Meiose
topic Crotalaria
Cytogenetics
Cytomixis
Meiosis
Pollen grain viability
Citogenética
Citomixia
Meiose
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 2009
dc.date.none.fl_str_mv 2009-12
2019-10-29T16:35:23Z
2019-10-29T16:35:23Z
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 FERREIRA, K. et al. Abnormal meiotic behavior in three species of crotalaria. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 12, p. 1641-1646, Dec. 2009
http://repositorio.ufla.br/jspui/handle/1/37369
identifier_str_mv FERREIRA, K. et al. Abnormal meiotic behavior in three species of crotalaria. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 12, p. 1641-1646, Dec. 2009
url http://repositorio.ufla.br/jspui/handle/1/37369
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Secretaria de Pesquisa e Desenvolvimento Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Embrapa Secretaria de Pesquisa e Desenvolvimento Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuária Brasileira
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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