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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
17/12/1992 |
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Data da última atualização: |
13/08/2004 |
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Autoria: |
COLLINS, G. B.; TAYLOR, N. L.; DEVERNA, J. W. |
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Título: |
In vitro approaches to interspecific hybridization and chromosome manipulation in crop plants. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
In: STADLER GENETICS SYMPOSIUM, 16., 1984, Missouri. Gene manipulation in plant improvement. New York : Plenum Press, 1984. |
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Páginas: |
p. 323-383. |
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Idioma: |
Inglês |
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Conteúdo: |
The results obtained to date involving the use of in vitro methods to facilitate wide hybridization in plants are voluminous and impressive. The techniques of embryo culture, ovule culture, and in vitro pollination and fertilization represent an extension of the normal sexual hybridization process. Successes recorded in obtaining hybrids stem largely from circumventing prezygotic or postzygotic hybridization barriers. Numerous recent successful hybridizations were possible because of the development of improved tissue and cell culture systems for crop plants and attention given to genotypes used in hybridization attempts. Interspecific and intergeneric hybridization utilizing the process of protoplast fusion will bypass the limits set by all sexual methods. In addition to combining complete genomes from two different species through protoplast fusion, this system affords unique opportunities for creating novel cytoplasmic combinations, transfer on individual chromosomes, transfer of cytoplasmic organelles, manipulation of male sterility, and for single gene transfer. Some caution must be noted with regard to the extent of hybridization possible between distantly related species. Although practically no limit exists to the physical fusion of protoplasts from widely divergent species, the restrictions imposed by somatic incompatibility have not been adequately addressed. Regeneration of plants from the protoplast or single heterokaryon level is still a major hurdle for many important crop species before somatic ... MenosThe results obtained to date involving the use of in vitro methods to facilitate wide hybridization in plants are voluminous and impressive. The techniques of embryo culture, ovule culture, and in vitro pollination and fertilization represent an extension of the normal sexual hybridization process. Successes recorded in obtaining hybrids stem largely from circumventing prezygotic or postzygotic hybridization barriers. Numerous recent successful hybridizations were possible because of the development of improved tissue and cell culture systems for crop plants and attention given to genotypes used in hybridization attempts. Interspecific and intergeneric hybridization utilizing the process of protoplast fusion will bypass the limits set by all sexual methods. In addition to combining complete genomes from two different species through protoplast fusion, this system affords unique opportunities for creating novel cytoplasmic combinations, transfer on individual chromosomes, transfer of cytoplasmic organelles, manipulation of male sterility, and for single gene transfer. Some caution must be noted with regard to the extent of hybridization possible between distantly related species. Although practically no limit exists to the physical fusion of protoplasts from widely divergent species, the restrictions imposed by somatic incompatibility have not been adequately addressed. Regeneration of plants from the protoplast or single heterokaryon level is still a major hurdle for many im... Mostrar Tudo |
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Palavras-Chave: |
Hibridizacao; Plant; Soybean; Sunflower. |
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Thesagro: |
Girassol; Melhoramento; Planta; Soja. |
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Thesaurus Nal: |
breeding; hybridization. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02323naa a2200277 a 4500
001 1451969
005 2004-08-13
008 1984 bl uuuu u00u1 u #d
100 1 $aCOLLINS, G. B.
245 $aIn vitro approaches to interspecific hybridization and chromosome manipulation in crop plants.
260 $c1984
300 $ap. 323-383.
520 $aThe results obtained to date involving the use of in vitro methods to facilitate wide hybridization in plants are voluminous and impressive. The techniques of embryo culture, ovule culture, and in vitro pollination and fertilization represent an extension of the normal sexual hybridization process. Successes recorded in obtaining hybrids stem largely from circumventing prezygotic or postzygotic hybridization barriers. Numerous recent successful hybridizations were possible because of the development of improved tissue and cell culture systems for crop plants and attention given to genotypes used in hybridization attempts. Interspecific and intergeneric hybridization utilizing the process of protoplast fusion will bypass the limits set by all sexual methods. In addition to combining complete genomes from two different species through protoplast fusion, this system affords unique opportunities for creating novel cytoplasmic combinations, transfer on individual chromosomes, transfer of cytoplasmic organelles, manipulation of male sterility, and for single gene transfer. Some caution must be noted with regard to the extent of hybridization possible between distantly related species. Although practically no limit exists to the physical fusion of protoplasts from widely divergent species, the restrictions imposed by somatic incompatibility have not been adequately addressed. Regeneration of plants from the protoplast or single heterokaryon level is still a major hurdle for many important crop species before somatic ...
650 $abreeding
650 $ahybridization
650 $aGirassol
650 $aMelhoramento
650 $aPlanta
650 $aSoja
653 $aHibridizacao
653 $aPlant
653 $aSoybean
653 $aSunflower
700 1 $aTAYLOR, N. L.
700 1 $aDEVERNA, J. W.
773 $tIn: STADLER GENETICS SYMPOSIUM, 16., 1984, Missouri. Gene manipulation in plant improvement. New York : Plenum Press, 1984.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
03/03/2004 |
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Data da última atualização: |
06/07/2017 |
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Autoria: |
LIMA, J. E. F. W.; SANTOS, P. M. C. dos; CARVALHO, N. de O.; SILVA, E. M. da. |
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Título: |
Fluxo de sedimentos em suspensao na bacia Araguaia-Tocantins. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Planaltina: Embrapa Cerrados, 2003. |
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Descrição Física: |
1 folder. |
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Idioma: |
Português |
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Palavras-Chave: |
Brasil; ECAGUA150; Hidrography; Hidrology; Sediment. |
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Thesagro: |
Bacia Hidrográfica; Hidrografia; Hidrologia; Sedimento. |
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Thesaurus NAL: |
Brazil; watersheds. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2009/24369/1/p2003_20.pdf
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Marc: |
LEADER 00710nam a2200277 a 4500
001 1566653
005 2017-07-06
008 2003 bl uuuu u0uu1 u #d
100 1 $aLIMA, J. E. F. W.
245 $aFluxo de sedimentos em suspensao na bacia Araguaia-Tocantins.
260 $aPlanaltina: Embrapa Cerrados$c2003
300 $c1 folder.
650 $aBrazil
650 $awatersheds
650 $aBacia Hidrográfica
650 $aHidrografia
650 $aHidrologia
650 $aSedimento
653 $aBrasil
653 $aECAGUA150
653 $aHidrography
653 $aHidrology
653 $aSediment
700 1 $aSANTOS, P. M. C. dos
700 1 $aCARVALHO, N. de O.
700 1 $aSILVA, E. M. da
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Embrapa Cerrados (CPAC) |
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