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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
21/01/2015 |
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Data da última atualização: |
05/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEREIRA, R. C.; FERREIRA, M. T. M.; DAVIDE, L. C.; PASQUAL, M.; MITTELMANN, A.; TECHIO, V. H. |
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Afiliação: |
ROSELAINE C. PEREIRA, UFLA; MARCO TULIO M. FERREIRA, UFLA; LISETE CHAMMA DAVIDE, UFLA; MOACIR PASQUAL, UFLA; ANDREA MITTELMANN, CNPGL; VANIA H. TECHIO, UFLA. |
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Título: |
Chromosome duplication in Lolium multiflorum Lam. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, v. 14, p. 251-255, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Artificial chromosome duplication of diploid genotypes of Lolium multiflorum (2n=2x=14) is worthy to breeding, and aims to increase the expression of traits with agronomic interest. The purpose of this study was to obtain polyploid plants of L. multiflorum from local diploid populations in order to exploit adaptation and future verification of the effects of polyploidy in agronomic traits. Seedlings were immersed in different colchicine solutions for an exposure time of 3h and 24h. Ploidy determination was made by the DNA content and certified by chromosomes counts. The plants confirmed as tetraploids were placed in a greenhouse, and, at flowering, pollen viability was evaluated, and seeds were harvested to assess the stability of the progenies. The percentage of polyploids obtained was 20%. Pollen viability of the tetraploids generated ranged from 58% to 69%. The tetraploid plants obtained in the experiment generated 164 progenies, of which 109 presented DNA content compatible with the tetraploid level, showing stability of chromosome duplication in the filial generation. |
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Palavras-Chave: |
Forage grass; Polyploidization; Tetraploid. |
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Thesaurus Nal: |
plant breeding. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/116182/1/Artigo-Andrea-Crop-BrApBiotech-Chromosome.pdf
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Marc: |
LEADER 01725naa a2200229 a 4500
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005 2024-02-05
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100 1 $aPEREIRA, R. C.
245 $aChromosome duplication in Lolium multiflorum Lam.$h[electronic resource]
260 $c2014
520 $aArtificial chromosome duplication of diploid genotypes of Lolium multiflorum (2n=2x=14) is worthy to breeding, and aims to increase the expression of traits with agronomic interest. The purpose of this study was to obtain polyploid plants of L. multiflorum from local diploid populations in order to exploit adaptation and future verification of the effects of polyploidy in agronomic traits. Seedlings were immersed in different colchicine solutions for an exposure time of 3h and 24h. Ploidy determination was made by the DNA content and certified by chromosomes counts. The plants confirmed as tetraploids were placed in a greenhouse, and, at flowering, pollen viability was evaluated, and seeds were harvested to assess the stability of the progenies. The percentage of polyploids obtained was 20%. Pollen viability of the tetraploids generated ranged from 58% to 69%. The tetraploid plants obtained in the experiment generated 164 progenies, of which 109 presented DNA content compatible with the tetraploid level, showing stability of chromosome duplication in the filial generation.
650 $aplant breeding
653 $aForage grass
653 $aPolyploidization
653 $aTetraploid
700 1 $aFERREIRA, M. T. M.
700 1 $aDAVIDE, L. C.
700 1 $aPASQUAL, M.
700 1 $aMITTELMANN, A.
700 1 $aTECHIO, V. H.
773 $tCrop Breeding and Applied Biotechnology$gv. 14, p. 251-255, 2014.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 25 | |
| 7. |  | ROCHA, L. C.; FERREIRA, M. T. M.; CUNHA, I. M. F.; MITTELMANN, A.; TECHIO, V. H. 45S rDNA sites in meiosis of Lolium multiflorum Lam.: variability, non-homologous associations and lack of fragility. Protoplasma, v. 256, n. 1, p. 227-235, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 12. | | FERREIRA, M. T. M.; PEREIRA, R. C.; TECHIO, V. H.; PASQUAL, M.; MITTELMANN, A. Tetraploidização artificial em azevem anual. In: SIMPÓSIO INTERNACIONAL DE BOTÂNICA APLICADA, 1.; SIMPÓSIO NACIONAL DE FRUTÍFERAS DO NORTE E NORDESTE, 1., 2012, Lavras. [Resumos]. Lavras: UFLA, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
|  |
| 13. | | FERREIRA, M. T. M.; PEREIRA, R. C.; ROCHA, L. C.; TECHIO, V. H.; MITTELMANN, A. Estimativa do conteudo de DNA em progenies de tetraploides sintéticos de Lolium multiflorium Lam. (Poaceae). In: SIMPÓSIO INTERNACIONAL DE BOTÂNICA APLICADA, 1.; SIMPÓSIO NACIONAL DE FRUTÍFERAS DO NORTE E NORDESTE, 1., 2012, Lavras. [Resumos]. Lavras: UFLA, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 19. | | SANTOS, N. DE S.; PEREIRA, R. C.; FERREIRA, M. T. M.; ROCHA, L. C.; TECHIO, V. H.; MITTELMANN, A. Viabilidade polinica em plantas de lolium multiflorum Lan. (Poaceae) tetraplodizadas artificialmente. In: SIMPÓSIO INTERNACIONAL DE BOTÂNICA APLICADA, 1.; SIMPÓSIO NACIONAL DE FRUTÍFERAS DO NORTE E NORDESTE, 1., 2012, Lavras. [Resumos]. Lavras: UFLA, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 20. | | CHAVES, A. L. A.; CARVALHO, P. H. M.; FERREIRA, M. T. M.; BENITES, F. R. G.; TECHIO, V. H. Genomic constitution, allopolyploidy, and evolutionary proposal for Cynodon Rich. based on GISH. Protoplasma, v. 259, p. 999-1011, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 25 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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