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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
13/05/1992 |
Data da última atualização: |
13/05/1992 |
Autoria: |
FUKUDA, W. M. G.; ALVES, A. A. C. |
Afiliação: |
EMBRAPA-CNPMF. |
Título: |
Banco ativo germoplasma de mandioca do Centro Nacional de Pesquisa de Mandioca e Fruticultura (1976 - 1988). |
Ano de publicação: |
1987 |
Fonte/Imprenta: |
Revista Brasileira de Mandioca, v.6, n.2, p.65-97, Cruz das Almas, 1987. |
ISSN: |
0101-5632 |
Idioma: |
Português |
Conteúdo: |
Sao feitas consideracoes sobre a formacao, manutencao e intercanbio do Banco Ativo de Germoplasma de Mandioca (BAG) do Centro Nacional de Pesquisa de Mandioca e Fruticultura (CNPMF). E apresentada uma relacao de 1112 acessos com as informacoes relativas a numero de registro no CNPMF, numero de registro no Centro Nacional de Recursos Geneticos e Biotecnologia (CENARGEN), nome vulgar, origem ou local de coleta e procedencia. Grande parte desses acessos ja foi caracterizado botanico-agronomicamente e encontra-se disponivel para o intercanbio nacional e internacional. |
Palavras-Chave: |
intercambio de germoplasma; Interchanging germplasm; Maintaining germoplasm; Manihot esculenta Crantz; manutencao de germoplasma; recursos geneticos; Variedades. |
Thesagro: |
Manihot Esculenta. |
Thesaurus Nal: |
genetic resources. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01370naa a2200253 a 4500 001 1632147 005 1992-05-13 008 1987 bl uuuu u00u1 u #d 022 $a0101-5632 100 1 $aFUKUDA, W. M. G. 245 $aBanco ativo germoplasma de mandioca do Centro Nacional de Pesquisa de Mandioca e Fruticultura (1976 - 1988). 260 $c1987 520 $aSao feitas consideracoes sobre a formacao, manutencao e intercanbio do Banco Ativo de Germoplasma de Mandioca (BAG) do Centro Nacional de Pesquisa de Mandioca e Fruticultura (CNPMF). E apresentada uma relacao de 1112 acessos com as informacoes relativas a numero de registro no CNPMF, numero de registro no Centro Nacional de Recursos Geneticos e Biotecnologia (CENARGEN), nome vulgar, origem ou local de coleta e procedencia. Grande parte desses acessos ja foi caracterizado botanico-agronomicamente e encontra-se disponivel para o intercanbio nacional e internacional. 650 $agenetic resources 650 $aManihot Esculenta 653 $aintercambio de germoplasma 653 $aInterchanging germplasm 653 $aMaintaining germoplasm 653 $aManihot esculenta Crantz 653 $amanutencao de germoplasma 653 $arecursos geneticos 653 $aVariedades 700 1 $aALVES, A. A. C. 773 $tRevista Brasileira de Mandioca$gv.6, n.2, p.65-97, Cruz das Almas, 1987.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
21/05/2014 |
Data da última atualização: |
05/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
BUSTAMANTE, F. O.; ROCHA, L. C.; TORRES, G. A.; DAVIDE, L. C.; MITTELMANN, A.; TECHIO, V. H. |
Afiliação: |
FERNANDA O. BUSTAMANTE, UFLA; LAIANE C. ROCHA, UFLA; GIOVANA A. TORRES, UFLA; LISETE C. DAVIDE, UFLA; ANDREA MITTELMANN, CNPGL; VÂNIA H. TECHIO, UFLA. |
Título: |
Distribution of rDNA in Diploid and Polyploid Lolium multiflorum Lam. and Fragile Sites in 45S rDNA Regions. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Crop Science, v. 54, n. 2, p. 617-625 2014. |
DOI: |
https://doi.org/10.2135/cropsci2013.05.0325 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Italian ryegrass. |
Thesagro: |
DNA. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/97916/1/atigo-publicado.pdf
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Marc: |
LEADER 01983naa a2200217 a 4500 001 1986699 005 2024-02-05 008 2014 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.2135/cropsci2013.05.0325$2DOI 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 653 $aItalian ryegrass 700 1 $aROCHA, L. C. 700 1 $aTORRES, G. A. 700 1 $aDAVIDE, L. C. 700 1 $aMITTELMANN, A. 700 1 $aTECHIO, V. H. 773 $tCrop Science$gv. 54, n. 2, p. 617-625 2014.
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Embrapa Gado de Leite (CNPGL) |
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