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55. | | PEREIRA, R. C.; ARAÚJO, E. R.; FERREIRA, M. A. S. V.; QUEZADO-DUVAL, A. M. Occurrence of Xanthomonas species causing bacterial spot in fresh market tomato fields in Brazil. Acta Horticulturae, The Hague, n. 914, p. 61-64, Nov. 2011. Trabalho apresentado no III International Symposium on Tomato Diseases, Ischia, 2010. Biblioteca(s): Embrapa Hortaliças. |
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59. | | ARAÚJO, E. R.; PEREIRA, R. C.; QUEZADO-DUVAL, A. M.; FERREIRA, M. A. S. V. Sensibilidade in vitro de isolados de Xanthomonas perforans a cobre e estreptomicina. Tropical plant Pathology, Brasília, DF, v. 34, p. S94, ago. 2009. Suplemento. Resumo 342. Trabalho apresentado no 42. Congresso Brasileiro de Fitopatologia, Rio de Janeiro. Biblioteca(s): Embrapa Hortaliças. |
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60. | | 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. Biblioteca(s): Embrapa Gado de Leite. |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
21/01/2015 |
Data da última atualização: |
05/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
PEREIRA, R. C.; FERREIRA, M. T. M.; DAVIDE, L. C.; PASQUAL, M.; MITTELMANN, A.; TECHIO, V. H. |
Afiliação: |
ROSELAINE C. PEREIRA, UFLA; MARCO TULIO M. FERREIRA, UFLA; LISETE CHAMMA DAVIDE, UFLA; MOACIR PASQUAL, UFLA; ANDREA MITTELMANN, CNPGL; VANIA H. TECHIO, UFLA. |
Título: |
Chromosome duplication in Lolium multiflorum Lam. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, v. 14, p. 251-255, 2014. |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Forage grass; Polyploidization; Tetraploid. |
Thesaurus NAL: |
plant breeding. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/116182/1/Artigo-Andrea-Crop-BrApBiotech-Chromosome.pdf
|
Marc: |
LEADER 01725naa a2200229 a 4500 001 2006346 005 2024-02-05 008 2014 bl uuuu u00u1 u #d 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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