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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
16/04/1992 |
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Data da última atualização: |
16/04/1992 |
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Autoria: |
ARANTES, N. E.; SEDIYAMA, T.; MONTEIRO, P. M. F. O.; COSTA, A. V. |
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Título: |
Estudo de alternativas de selecao de variedades de soja (Glycine max (L.) Merrill), em Goiania, Goias. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
In: SEMINARIO NACIONAL DE PESQUISA DE SOJA, 2., 1981, Brasilia. Anais. Londrina: EMBRAPA-CNPSo, 1982. v.2, p.415-425. |
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Idioma: |
Português |
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Conteúdo: |
O trabalho foi realizado em Goiania, GO, nos anos agricolas 1976/77, 1977/78 e 1978/79. Procurou-se verificar a possibilidade de reduzir o numero de anos gastos para a selecao das melhores variedades, com base nos testes regionais. Quatorze cultivares de soja, pertencentes aos grupos de maturacao V e IX, foram estudadas em cinco epocas de semeadura compreendidas entre meados de outubro e meados de dezembro. Com base nas estimativas de herdabilidade encontradas, concluiu-se que a realizacao de testes regionais de variedades de soja, durante dois anos, com tres, quatro ou cinco epocas de semeadura, apresenta eficiencia semelhante ao esquema de ensaios usuais realizados durante tres anos com apenas uma epoca. Levando em consideracao o custo dos ensaios, dois anose tres epocas, deve ser preferido aos esquemas de dois anos e quatro ou cinco epocas. Houva boa consistencia entre os genotipos selecionados nas diferentes combinacoes de epocas de semeadura, e a eficiencia das previsoes de rendimento foi relativamente alta, permitindo concluir que uma pressao de selecao de 50% nos teste regionais de variedades de soja apresenta pequena possibilidade de eliminar genotipos superiores. |
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Palavras-Chave: |
Brasil; Cultivar; Goiania; Goias. |
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Thesagro: |
Cerrado; Genótipo; Glycine Max; Plantio; Seleção; Soja. |
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Categoria do assunto: |
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Marc: |
LEADER 01974naa a2200277 a 4500
001 1547118
005 1992-04-16
008 1982 bl uuuu u00u1 u #d
100 1 $aARANTES, N. E.
245 $aEstudo de alternativas de selecao de variedades de soja (Glycine max (L.) Merrill), em Goiania, Goias.
260 $c1982
520 $aO trabalho foi realizado em Goiania, GO, nos anos agricolas 1976/77, 1977/78 e 1978/79. Procurou-se verificar a possibilidade de reduzir o numero de anos gastos para a selecao das melhores variedades, com base nos testes regionais. Quatorze cultivares de soja, pertencentes aos grupos de maturacao V e IX, foram estudadas em cinco epocas de semeadura compreendidas entre meados de outubro e meados de dezembro. Com base nas estimativas de herdabilidade encontradas, concluiu-se que a realizacao de testes regionais de variedades de soja, durante dois anos, com tres, quatro ou cinco epocas de semeadura, apresenta eficiencia semelhante ao esquema de ensaios usuais realizados durante tres anos com apenas uma epoca. Levando em consideracao o custo dos ensaios, dois anose tres epocas, deve ser preferido aos esquemas de dois anos e quatro ou cinco epocas. Houva boa consistencia entre os genotipos selecionados nas diferentes combinacoes de epocas de semeadura, e a eficiencia das previsoes de rendimento foi relativamente alta, permitindo concluir que uma pressao de selecao de 50% nos teste regionais de variedades de soja apresenta pequena possibilidade de eliminar genotipos superiores.
650 $aCerrado
650 $aGenótipo
650 $aGlycine Max
650 $aPlantio
650 $aSeleção
650 $aSoja
653 $aBrasil
653 $aCultivar
653 $aGoiania
653 $aGoias
700 1 $aSEDIYAMA, T.
700 1 $aMONTEIRO, P. M. F. O.
700 1 $aCOSTA, A. V.
773 $tIn: SEMINARIO NACIONAL DE PESQUISA DE SOJA, 2., 1981, Brasilia. Anais. Londrina: EMBRAPA-CNPSo, 1982.$gv.2, p.415-425.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
02/03/2016 |
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Data da última atualização: |
09/05/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SANTOS, F. C.; CLEMENTE, A. da C. S.; CAIXETA, F.; ROSA, S. D. V. F. da. |
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Afiliação: |
UDI Pesquisa & Desenvolvimento; UFLA; General Mills Brasil Alimentos Ltda.; STTELA DELLYZETE VEIGA F DA ROSA, SAPC. |
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Título: |
Endo-ß-mannanase and ß-tubulin gene expression during the final phases of coffee seed maturation. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 14, n. 4, p. 11719-11728, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Coffee seeds begin to develop shortly after fertilization and can take 6 to 8 months to complete their formation, a period during which all the characteristics of the mature seed are determined, directly influencing physiological quality. However, little is known about the molecular mechanisms that act during coffee seed maturation. The objective of the current study was to analyze expression of the β-tubulin (TUB) and endo-β-mannanase (MAN) genes during different phases at the end of development and in different tissues of Coffea arabica seeds. The transcription levels of the TUB and MAN genes were quantified in a relative manner using qRT-PCR in whole seeds, and dissected into embryos and endosperms at different developmental stages. Greater expression of MAN was observed in whole seeds and in endosperms during the green stage, and in the embryo during the over-ripe stage. High TUB gene expression was observed in whole seeds during the green stage and, in the embryos, there were peaks in expression during the over-ripe stage. In endosperms, the peak of expression occurred in both the green stage and in the cherry stage. These results suggest participation of endo-β-mannanase during the initial seed developmental stages, and in the stages of physiological maturity in the embryo tissues. TUB gene expression varied depending on the developmental stage and section of seed analyzed, indicating the participation of β-tubulin during organogenesis and coffee seed maturation. MenosCoffee seeds begin to develop shortly after fertilization and can take 6 to 8 months to complete their formation, a period during which all the characteristics of the mature seed are determined, directly influencing physiological quality. However, little is known about the molecular mechanisms that act during coffee seed maturation. The objective of the current study was to analyze expression of the β-tubulin (TUB) and endo-β-mannanase (MAN) genes during different phases at the end of development and in different tissues of Coffea arabica seeds. The transcription levels of the TUB and MAN genes were quantified in a relative manner using qRT-PCR in whole seeds, and dissected into embryos and endosperms at different developmental stages. Greater expression of MAN was observed in whole seeds and in endosperms during the green stage, and in the embryo during the over-ripe stage. High TUB gene expression was observed in whole seeds during the green stage and, in the embryos, there were peaks in expression during the over-ripe stage. In endosperms, the peak of expression occurred in both the green stage and in the cherry stage. These results suggest participation of endo-β-mannanase during the initial seed developmental stages, and in the stages of physiological maturity in the embryo tissues. TUB gene expression varied depending on the developmental stage and section of seed analyzed, indicating the participation of β-tubulin during organogenesis and coffee se... Mostrar Tudo |
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Palavras-Chave: |
QRT-PCR. |
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Thesagro: |
Coffea Arábica. |
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Thesaurus NAL: |
Developmental stages. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/140475/1/Endo-B-mannanase.pdf
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Marc: |
LEADER 02122naa a2200193 a 4500
001 2039275
005 2019-05-09
008 2015 bl uuuu u00u1 u #d
100 1 $aSANTOS, F. C.
245 $aEndo-ß-mannanase and ß-tubulin gene expression during the final phases of coffee seed maturation.$h[electronic resource]
260 $c2015
520 $aCoffee seeds begin to develop shortly after fertilization and can take 6 to 8 months to complete their formation, a period during which all the characteristics of the mature seed are determined, directly influencing physiological quality. However, little is known about the molecular mechanisms that act during coffee seed maturation. The objective of the current study was to analyze expression of the β-tubulin (TUB) and endo-β-mannanase (MAN) genes during different phases at the end of development and in different tissues of Coffea arabica seeds. The transcription levels of the TUB and MAN genes were quantified in a relative manner using qRT-PCR in whole seeds, and dissected into embryos and endosperms at different developmental stages. Greater expression of MAN was observed in whole seeds and in endosperms during the green stage, and in the embryo during the over-ripe stage. High TUB gene expression was observed in whole seeds during the green stage and, in the embryos, there were peaks in expression during the over-ripe stage. In endosperms, the peak of expression occurred in both the green stage and in the cherry stage. These results suggest participation of endo-β-mannanase during the initial seed developmental stages, and in the stages of physiological maturity in the embryo tissues. TUB gene expression varied depending on the developmental stage and section of seed analyzed, indicating the participation of β-tubulin during organogenesis and coffee seed maturation.
650 $aDevelopmental stages
650 $aCoffea Arábica
653 $aQRT-PCR
700 1 $aCLEMENTE, A. da C. S.
700 1 $aCAIXETA, F.
700 1 $aROSA, S. D. V. F. da
773 $tGenetics and Molecular Research$gv. 14, n. 4, p. 11719-11728, 2015.
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Embrapa Café (CNPCa) |
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