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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Florestas; Embrapa Meio Norte / UEP-Parnaíba; Embrapa Meio-Norte; Embrapa Soja; Embrapa Unidades Centrais. |
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Data corrente: |
29/01/1993 |
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Data da última atualização: |
12/12/2007 |
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Autoria: |
SOUZA, R. F. |
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Título: |
Relacionamento da EMBRAPA com os sistemas estaduais. |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
Brasília: EMBRAPA, 1979. |
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Páginas: |
9 p. |
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Idioma: |
Português |
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Notas: |
Trabalho apresentado na IV Reunião dos Dirigentes da EMBRAPA, realizada em Brasília, 1979. |
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Conteúdo: |
Relacionamento da EMBRAPA com os sistemas estaduais. |
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Palavras-Chave: |
Agropecuaria; Aspecto organizacional; Desenvolvimento; Development; EMBRAPA; Pesquisa agropecuaria; Relacionamento; Relationship; Research institution; Sistema Embrapa; Sistema Estadual; Sistemas estaduais; State systems. |
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Thesagro: |
Agricultura; Instituição de Pesquisa; Pesquisa Agrícola. |
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Thesaurus Nal: |
agriculture; research. |
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Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01035nam a2200349 a 4500
001 1215497
005 2007-12-12
008 1979 bl uuuu u0uu1 u #d
100 1 $aSOUZA, R. F.
245 $aRelacionamento da EMBRAPA com os sistemas estaduais.
260 $aBrasília: EMBRAPA$c1979
300 $a9 p.
500 $aTrabalho apresentado na IV Reunião dos Dirigentes da EMBRAPA, realizada em Brasília, 1979.
520 $aRelacionamento da EMBRAPA com os sistemas estaduais.
650 $aagriculture
650 $aresearch
650 $aAgricultura
650 $aInstituição de Pesquisa
650 $aPesquisa Agrícola
653 $aAgropecuaria
653 $aAspecto organizacional
653 $aDesenvolvimento
653 $aDevelopment
653 $aEMBRAPA
653 $aPesquisa agropecuaria
653 $aRelacionamento
653 $aRelationship
653 $aResearch institution
653 $aSistema Embrapa
653 $aSistema Estadual
653 $aSistemas estaduais
653 $aState systems
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
21/02/2014 |
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Data da última atualização: |
06/02/2015 |
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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: |
BUSTAMANTE, F. O.; ROCHA, L. C.; TORRES, G. A.; DAVIDE, L. C.; MITTELMANN, A. |
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Afiliação: |
Fernanda O. Bustamante; Laiane C. Rocha; Giovana A. Torres; Lisete C. Davide; ANDREA MITTELMANN, CNPGL. |
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Título: |
Distribution of rDNA in Diploid and Polyploid Lolium multiflorum Lam. and Fragile Sites in 45S rDNA Regions. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Crop Science, v. 54, p. 1-9, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
The distribution, number, and location of ribosome DNA (rDNA) regions on chromosomes were evaluated, and transcriptional activity was described in genotypes of Italian ryegrass (Lolium multiflorum Lam.), as well as in an offspring resulting from interbreeding. Nucleoli and nucleolar organizer regions were labeled with silver nitrate and fluorescent in situ hybridization (FISH) was performed with 5S and 45S rDNA as probes. Hybridization procedures were performed on slides previously stained with the Ag-NOR method. The 5S rDNA sites were highly conserved, while 45S rDNA sites had wide variability, even showing more than one site on the same chromosome. One of the genotypes had more than expected 45S rDNA sites. Approximately 95% of the cells at metaphases had at least one chromosome break/gap in the 45S rDNA site, resulting in chromosome fragmentation. Thus, 45S rDNA correspond to fragile sites in L. multiflorum. These events can affect genome organization and cause new chromosomal rearrangements which, along with some other factors, might be responsible for microevolutionary changes involved in differentiation and speciation. Not all 45S rDNA sites are transcriptionally active. Variation in both the number and size of nucleoli and mechanisms of nucleolar fusion were observed in L. multiflorum. |
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Thesagro: |
DNA. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01846naa a2200181 a 4500
001 1980839
005 2015-02-06
008 2014 bl uuuu u00u1 u #d
100 1 $aBUSTAMANTE, F. O.
245 $aDistribution of rDNA in Diploid and Polyploid Lolium multiflorum Lam. and Fragile Sites in 45S rDNA Regions.$h[electronic resource]
260 $c2014
520 $aThe distribution, number, and location of ribosome DNA (rDNA) regions on chromosomes were evaluated, and transcriptional activity was described in genotypes of Italian ryegrass (Lolium multiflorum Lam.), as well as in an offspring resulting from interbreeding. Nucleoli and nucleolar organizer regions were labeled with silver nitrate and fluorescent in situ hybridization (FISH) was performed with 5S and 45S rDNA as probes. Hybridization procedures were performed on slides previously stained with the Ag-NOR method. The 5S rDNA sites were highly conserved, while 45S rDNA sites had wide variability, even showing more than one site on the same chromosome. One of the genotypes had more than expected 45S rDNA sites. Approximately 95% of the cells at metaphases had at least one chromosome break/gap in the 45S rDNA site, resulting in chromosome fragmentation. Thus, 45S rDNA correspond to fragile sites in L. multiflorum. These events can affect genome organization and cause new chromosomal rearrangements which, along with some other factors, might be responsible for microevolutionary changes involved in differentiation and speciation. Not all 45S rDNA sites are transcriptionally active. Variation in both the number and size of nucleoli and mechanisms of nucleolar fusion were observed in L. multiflorum.
650 $aDNA
700 1 $aROCHA, L. C.
700 1 $aTORRES, G. A.
700 1 $aDAVIDE, L. C.
700 1 $aMITTELMANN, A.
773 $tCrop Science$gv. 54, p. 1-9, 2014.
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Embrapa Clima Temperado (CPACT) |
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