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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
17/02/2016 |
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Data da última atualização: |
17/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEREIRA, R.; SOUZA, E. A.; BARCELOS, Q. L.; ABREU, A. F. B.; LIBRELON, S. S. |
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Afiliação: |
R. PEREIRA, UFLA; E. A. SOUZA, UFLA; Q. L. BARCELOS, UFMT, Sinop-MT; ANGELA DE FATIMA BARBOSA ABREU, CNPAF; S. S. LIBRELON, UFLA. |
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Título: |
Aggressiveness of Pseudocercospora griseola strains in common bean genotypes and implications for genetic improvement. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Genetics and Molecular Research, Ribeirão Preto, v. 14, n. 2, p. 5044-5053, 2015. |
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ISSN: |
1676-5680 |
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DOI: |
10.4238/2015.May.12.7 |
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Idioma: |
Inglês |
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Conteúdo: |
The fungus Pseudocercospora griseola, the causal agent of angular leaf spot in the common bean (Phaseolus vulgaris L.), exhibits a broad pathogenic variability that complicates the development of resistant cultivars. For breeding programs to successfully obtain common bean cultivars with durable resistance, knowing the aggressiveness of different strains, as well as the mechanisms of genetic resistance, is important. The aims of this study were to study the variation within race 63.63 by evaluating the aggressiveness of different strains, to analyze the genetic resistance of common bean lines to P. griseola , and to ascertain the implications for genetic improvement in obtaining resistance in this pathosystem. Four strains, collected from different locations, were inoculated in three groups of common bean lines in a greenhouse, and the severity of the disease was subsequently evaluated. Statistical analyses were carried out using the diallel method, which provided information on the vertical and horizontal resistance of host plants, in addition to information regarding the aggressiveness of the strains. The aggressiveness of P. griseola differed between the strains of race 63.63. The diallel method proved to be promising for the identification of horizontal and vertical resistance in the common bean-P. griseola pathosystem, with a predominance of horizontal resistance. Gene pyramiding, using marker-assisted selection, may not be the most effective strategy for obtaining durable resistance. MenosThe fungus Pseudocercospora griseola, the causal agent of angular leaf spot in the common bean (Phaseolus vulgaris L.), exhibits a broad pathogenic variability that complicates the development of resistant cultivars. For breeding programs to successfully obtain common bean cultivars with durable resistance, knowing the aggressiveness of different strains, as well as the mechanisms of genetic resistance, is important. The aims of this study were to study the variation within race 63.63 by evaluating the aggressiveness of different strains, to analyze the genetic resistance of common bean lines to P. griseola , and to ascertain the implications for genetic improvement in obtaining resistance in this pathosystem. Four strains, collected from different locations, were inoculated in three groups of common bean lines in a greenhouse, and the severity of the disease was subsequently evaluated. Statistical analyses were carried out using the diallel method, which provided information on the vertical and horizontal resistance of host plants, in addition to information regarding the aggressiveness of the strains. The aggressiveness of P. griseola differed between the strains of race 63.63. The diallel method proved to be promising for the identification of horizontal and vertical resistance in the common bean-P. griseola pathosystem, with a predominance of horizontal resistance. Gene pyramiding, using marker-assisted selection, may not be the most effective strategy for obtaining dura... Mostrar Tudo |
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Palavras-Chave: |
Melhoramento genético; Pseudocercospora griseola. |
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Thesagro: |
Feijão; Fungo; Phaseolus vulgaris. |
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Thesaurus Nal: |
Genetic improvement. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/139215/1/CNPAF-2015-gmrafba.pdf
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Marc: |
LEADER 02351naa a2200265 a 4500
001 2037340
005 2016-02-17
008 2015 bl uuuu u00u1 u #d
022 $a1676-5680
024 7 $a10.4238/2015.May.12.7$2DOI
100 1 $aPEREIRA, R.
245 $aAggressiveness of Pseudocercospora griseola strains in common bean genotypes and implications for genetic improvement.$h[electronic resource]
260 $c2015
520 $aThe fungus Pseudocercospora griseola, the causal agent of angular leaf spot in the common bean (Phaseolus vulgaris L.), exhibits a broad pathogenic variability that complicates the development of resistant cultivars. For breeding programs to successfully obtain common bean cultivars with durable resistance, knowing the aggressiveness of different strains, as well as the mechanisms of genetic resistance, is important. The aims of this study were to study the variation within race 63.63 by evaluating the aggressiveness of different strains, to analyze the genetic resistance of common bean lines to P. griseola , and to ascertain the implications for genetic improvement in obtaining resistance in this pathosystem. Four strains, collected from different locations, were inoculated in three groups of common bean lines in a greenhouse, and the severity of the disease was subsequently evaluated. Statistical analyses were carried out using the diallel method, which provided information on the vertical and horizontal resistance of host plants, in addition to information regarding the aggressiveness of the strains. The aggressiveness of P. griseola differed between the strains of race 63.63. The diallel method proved to be promising for the identification of horizontal and vertical resistance in the common bean-P. griseola pathosystem, with a predominance of horizontal resistance. Gene pyramiding, using marker-assisted selection, may not be the most effective strategy for obtaining durable resistance.
650 $aGenetic improvement
650 $aFeijão
650 $aFungo
650 $aPhaseolus vulgaris
653 $aMelhoramento genético
653 $aPseudocercospora griseola
700 1 $aSOUZA, E. A.
700 1 $aBARCELOS, Q. L.
700 1 $aABREU, A. F. B.
700 1 $aLIBRELON, S. S.
773 $tGenetics and Molecular Research, Ribeirão Preto$gv. 14, n. 2, p. 5044-5053, 2015.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| Registros recuperados : 86 | |
| 4. |  | PEREIRA, R.; SOUZA, E. A.; BARCELOS, Q. L.; ABREU, A. F. B.; LIBRELON, S. S. Aggressiveness of Pseudocercospora griseola strains in common bean genotypes and implications for genetic improvement. Genetics and Molecular Research, Ribeirão Preto, v. 14, n. 2, p. 5044-5053, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Arroz e Feijão. |
|    |
| 13. | | SILVA, K. J. D. e; SOUZA, E. A. de; SARTORATO, A.; FREIRE, C. N. de S. Pathogenic variability of isolates of Pseudocercospora griseola, the cause of common bean angular leaf spot, and its implications for resistance breeding. Journal of Phytopathology, Berlin, v. 156, n. 10, p. 602-606, Oct. 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Meio-Norte. |
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| 20. | | SOUZA, E. A. de; BARBOSA, F. R.; KIILL, L. H. P.; COSTA, R. de S. Enraizamento de folhas de feijão caupi (Vigna unguiculata L. - Leguminosae) sob condições normais de temperatura no semi-árido do Vale do São Francisco. In: REUNIÃO NORDESTINA DE BOTÂNICA, 26., 2003, Fortaleza. Biodiversidade e conservação: resumos. Fortaleza: UFC-CC, Departamento de Biologia, Herbário Prisco Bezerra EAC, 2003. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 86 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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