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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Milho e Sorgo; Embrapa Soja. |
Data corrente: |
28/10/2003 |
Data da última atualização: |
05/06/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PAGLIARINI, M. S.; DEFANI, M. A.; MEIRELLES, W. F.; PEREIRA, J. E. |
Afiliação: |
WALTER FERNANDES MEIRELLES, CNPMS. |
Título: |
Recurrence of multiple meiotic abnormalities in maize genotypes from the same origin and their influence on productivity. |
Ano de publicação: |
2002 |
Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 3, p. 355-360, 2002. |
Idioma: |
Inglês |
Conteúdo: |
The frequency of meiotic abnormalities among single-, double- and three-way cross experimental hybrids and their parental inbred lines is studied. Among the sixteen inbred lines examined, fifteen originated from populations developed at the National Center of Research in Maize and Sorghum (CNPMS/Embrapa) and one from a population developed at ESALQ (Faculty of Agriculture Luiz de Queiroz of the University of São Paulo). Previous analyses of homozygous and heterozygous maize genotypes from CNPMS populations demonstrated high meiotic instability. The present investigation aims at analyzing the meiotic behavior of different inbred lines obtained from CNPMS populations by another breeding enterprise to verify the presence of the same abnormalities and determine whether the abnormalities might compromise productivity. Analyses showed the presence of some abnormalities described previously, albeit at a lower frequency. The most common abnormalities in homozygous and heterozygous genotypes from CNPMS populations were related to irregular chromosome segregation and to chromosome stickiness. An inbred line from the ESALQ population showed only abnormalities related to irregular chromosome segregation caused by the presence of univalent chromosomes. The Pearson correlation procedure indicated high negative correlation between meiotic abnormalities and productivity. |
Palavras-Chave: |
Maize; Meiotic abnormalities; Productivity. |
Thesagro: |
Milho; Produtividade. |
Categoria do assunto: |
-- S Ciências Biológicas |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/51085/1/Recurrence-multiple.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/175901/1/c8128f42-51fe-bcce.pdf
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Marc: |
LEADER 02042naa a2200217 a 4500 001 1487466 005 2018-06-05 008 2002 bl uuuu u00u1 u #d 100 1 $aPAGLIARINI, M. S. 245 $aRecurrence of multiple meiotic abnormalities in maize genotypes from the same origin and their influence on productivity. 260 $c2002 520 $aThe frequency of meiotic abnormalities among single-, double- and three-way cross experimental hybrids and their parental inbred lines is studied. Among the sixteen inbred lines examined, fifteen originated from populations developed at the National Center of Research in Maize and Sorghum (CNPMS/Embrapa) and one from a population developed at ESALQ (Faculty of Agriculture Luiz de Queiroz of the University of São Paulo). Previous analyses of homozygous and heterozygous maize genotypes from CNPMS populations demonstrated high meiotic instability. The present investigation aims at analyzing the meiotic behavior of different inbred lines obtained from CNPMS populations by another breeding enterprise to verify the presence of the same abnormalities and determine whether the abnormalities might compromise productivity. Analyses showed the presence of some abnormalities described previously, albeit at a lower frequency. The most common abnormalities in homozygous and heterozygous genotypes from CNPMS populations were related to irregular chromosome segregation and to chromosome stickiness. An inbred line from the ESALQ population showed only abnormalities related to irregular chromosome segregation caused by the presence of univalent chromosomes. The Pearson correlation procedure indicated high negative correlation between meiotic abnormalities and productivity. 650 $aMilho 650 $aProdutividade 653 $aMaize 653 $aMeiotic abnormalities 653 $aProductivity 700 1 $aDEFANI, M. A. 700 1 $aMEIRELLES, W. F. 700 1 $aPEREIRA, J. E. 773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 2, n. 3, p. 355-360, 2002.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Registros recuperados : 169 | |
81. | | TAKAYAMA, S. Y.; FREITAS, P. M de; PAGLIARINI, M. S.; BATISTA, L. A. R. Determinação do número de cromossomos em acessos de Paspalum (grupo plicatula). Revista Brasileira de Genética, Ribeirão Preto, SP, v.19, n.3, (Suppl.), p.133, Set. 1996.Biblioteca(s): Embrapa Pecuária Sudeste. |
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82. | | SILVA, L. A. C. da; PAGLIARINI, M. S; SANTOS, S. A.; VALLE, C. B. do. Receptividade dos estigmas de acessos da grama-do-cerrado (Mesosetum chaseae Luces), Pantanal. SIMPÓSIO SOBRE RECURSOS NATURAIS E SOCIOECONÔMICOS DO PANTANAL, 5., 2010, Corumbá, MS. Anais... Corumbá: Embrapa Pantanal: UFMS; Campinas: ICS do Brasil, 2010. 1 CD-ROM SIMPAN 2010. Não PaginadoTipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Pantanal. |
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84. | | PAGLIARINI, M. S.; FREITAS, P. M. de; TAKAYAMA, S. Y.; BATISTA, L. A. R. Potencial forrageiro de acessos de germoplasma de gênero Paspalum. Ensaio 1993/94. Revista Brasileira de Genética, Ribeirão Preto, SP, v.19, n.3, p.137, Set. 1996.Biblioteca(s): Embrapa Pecuária Sudeste. |
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95. | | RICCI, G. C. L.; KANESHIMA, A. M. de S.; PAGLIARINI, M. S.; VALLE, C. B. do. Microsporogênese em híbridos pré-selecionados de Brachiaria humidicola (Rendle) Schweick (Poaceae). In:SIMPÓSIO INTERNACIONAL SOBRE MELHORAMENTO DE FORRAGEIRAS, 2., 2009, Campo Grande, MS. [Anais]... Campo Grande, MS: Embrapa Gado de Corte, 2009. II SIMF. Comitê editorial: Liana Jank; Lucimara Chiari; Rosângela Maria Simeão Resende. 3 p. 1 CD-ROM. Resumo C 05.Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Gado de Corte. |
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98. | | SANTOS, E. M.; CALISTO, V.; BERNARDO, Z. H.; PAGLIARINI, M. S.; VALLE, C. B. Microsporogenesis in polyploid accessions of Brachiaria brizantha (Poaceae). In: Journal of Basic and Applied Genetics, Buenos Aires, v. 19, Sept. 2008. Suplement, Trabalho CV 5. Edição dos Resumos do XXXVII Congreso Argentino de Genetica, setembro 2008, Buenos Aires. 1 p.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Corte. |
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Registros recuperados : 169 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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