Abnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae).
Autor(a) principal: | |
---|---|
Data de Publicação: | 2007 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/326647 |
Resumo: | Microsporogenesis was evaluated in the Brachiaria humidicola collection of the Embrapa Beef Cattle Center, represented by 60 acessions. One acession (H121) presented an abnormal pattern of cytokinesis that had never been reported in this genus. Among 900 meiocytes analyzed in the first division, 10.7% underwent precocious and multiple cytokinesis in metaphase I, fractionating the genome and the cytoplasm into two or more parts. The expected cytokinesis after telophase I did not occur. The abnormal meiocytes from the first division entered the second division but the second cytokinesis after telophase II was also abnormal. Among the 857 meiocytes analyzed in the second division, 10.9% presented abnormal, incomplete or total absence of cytokinesis. Dyads and binucleated microspores were recorded among the meiotic products. The use of this accession in the Embrapa breeding program is compromised. |
id |
EMBR_565af07798f88b3eb0f6f11d88c11f72 |
---|---|
oai_identifier_str |
oai:www.alice.cnptia.embrapa.br:doc/326647 |
network_acronym_str |
EMBR |
network_name_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository_id_str |
2154 |
spelling |
Abnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae).BraquiáriaCitocineseCampo GrandeMato Grosso do SulBrasilFeed cropsFeed grassesCitokinesisMelhoramento genético vegetalCitogenética vegetalPlanta ForrageiraMeioseBrachiaria HumidicolaPlant breedingCytogeneticsBrazilMicrosporogenesis was evaluated in the Brachiaria humidicola collection of the Embrapa Beef Cattle Center, represented by 60 acessions. One acession (H121) presented an abnormal pattern of cytokinesis that had never been reported in this genus. Among 900 meiocytes analyzed in the first division, 10.7% underwent precocious and multiple cytokinesis in metaphase I, fractionating the genome and the cytoplasm into two or more parts. The expected cytokinesis after telophase I did not occur. The abnormal meiocytes from the first division entered the second division but the second cytokinesis after telophase II was also abnormal. Among the 857 meiocytes analyzed in the second division, 10.9% presented abnormal, incomplete or total absence of cytokinesis. Dyads and binucleated microspores were recorded among the meiotic products. The use of this accession in the Embrapa breeding program is compromised.Eleniza de Victor Adamowski, UEM; Kellen Regina Boldrini, UEM; Maria Suely Pagliarini, UEM; CACILDA BORGES DO VALLE, CNPGC.ADAMOWSKI, E. V.BOLDRINI, K. R.PAGLIARINI, M. S.VALLE, C. B. do2018-01-26T23:36:47Z2018-01-26T23:36:47Z2008-03-1720072018-01-26T23:36:47Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGenetics and Molecular Research, Ribeirão Preto, v. 6, n. 3, p. 616-621, 2007.http://www.alice.cnptia.embrapa.br/alice/handle/doc/326647enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-01-26T23:36:54Zoai:www.alice.cnptia.embrapa.br:doc/326647Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-01-26T23:36:54falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-01-26T23:36:54Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Abnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae). |
title |
Abnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae). |
spellingShingle |
Abnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae). ADAMOWSKI, E. V. Braquiária Citocinese Campo Grande Mato Grosso do Sul Brasil Feed crops Feed grasses Citokinesis Melhoramento genético vegetal Citogenética vegetal Planta Forrageira Meiose Brachiaria Humidicola Plant breeding Cytogenetics Brazil |
title_short |
Abnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae). |
title_full |
Abnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae). |
title_fullStr |
Abnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae). |
title_full_unstemmed |
Abnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae). |
title_sort |
Abnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae). |
author |
ADAMOWSKI, E. V. |
author_facet |
ADAMOWSKI, E. V. BOLDRINI, K. R. PAGLIARINI, M. S. VALLE, C. B. do |
author_role |
author |
author2 |
BOLDRINI, K. R. PAGLIARINI, M. S. VALLE, C. B. do |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Eleniza de Victor Adamowski, UEM; Kellen Regina Boldrini, UEM; Maria Suely Pagliarini, UEM; CACILDA BORGES DO VALLE, CNPGC. |
dc.contributor.author.fl_str_mv |
ADAMOWSKI, E. V. BOLDRINI, K. R. PAGLIARINI, M. S. VALLE, C. B. do |
dc.subject.por.fl_str_mv |
Braquiária Citocinese Campo Grande Mato Grosso do Sul Brasil Feed crops Feed grasses Citokinesis Melhoramento genético vegetal Citogenética vegetal Planta Forrageira Meiose Brachiaria Humidicola Plant breeding Cytogenetics Brazil |
topic |
Braquiária Citocinese Campo Grande Mato Grosso do Sul Brasil Feed crops Feed grasses Citokinesis Melhoramento genético vegetal Citogenética vegetal Planta Forrageira Meiose Brachiaria Humidicola Plant breeding Cytogenetics Brazil |
description |
Microsporogenesis was evaluated in the Brachiaria humidicola collection of the Embrapa Beef Cattle Center, represented by 60 acessions. One acession (H121) presented an abnormal pattern of cytokinesis that had never been reported in this genus. Among 900 meiocytes analyzed in the first division, 10.7% underwent precocious and multiple cytokinesis in metaphase I, fractionating the genome and the cytoplasm into two or more parts. The expected cytokinesis after telophase I did not occur. The abnormal meiocytes from the first division entered the second division but the second cytokinesis after telophase II was also abnormal. Among the 857 meiocytes analyzed in the second division, 10.9% presented abnormal, incomplete or total absence of cytokinesis. Dyads and binucleated microspores were recorded among the meiotic products. The use of this accession in the Embrapa breeding program is compromised. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007 2008-03-17 2018-01-26T23:36:47Z 2018-01-26T23:36:47Z 2018-01-26T23:36:47Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Genetics and Molecular Research, Ribeirão Preto, v. 6, n. 3, p. 616-621, 2007. http://www.alice.cnptia.embrapa.br/alice/handle/doc/326647 |
identifier_str_mv |
Genetics and Molecular Research, Ribeirão Preto, v. 6, n. 3, p. 616-621, 2007. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/326647 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1794503448725553152 |