| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Algodão. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Algodão. |
|
Data corrente: |
20/09/2022 |
|
Data da última atualização: |
05/02/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SYBUIA, P. A.; CASTRO-PRADO, G. de; NUNES, W. M. de C.; ZANUTTO, C. A.; KANESHIMA, E. N.; SOARES, D. J.; FRANCO, C. C. da S.; MATHIAS, P. C. de F.; CASTRO-PRADO, M. A. A. de. |
|
Afiliação: |
PRISCILA AYUMI SYBUIA, UEM; GABRIELA DE CASTRO-PRADO, UEM; WILLIAM MÁRIO DE CARVALHO NUNES, UEM; CARLOS ALEXANDRE ZANUTTO, UEM; EDILSON NOBUYOSHI KANESHIMA, UEM; DARTANHÃ JOSÉ SOARES, CNPA; CLAUDINÉIA CONATIONI DA SILVA FRANCO, UEM; PAULO CEZAR DE FREITAS MATHIAS, UEM; MARIALBA AVEZUM ALVES DE CASTRO-PRADO, UEM. |
|
Título: |
Parasexual recombination in Macrophomina pseudophaseolina and vegetative compatibility reactions in M. euphorbiicola. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
European Journal of Plant Pathology, v. 163, p. 937-950, 2022. |
|
ISSN: |
0929-1873 |
|
DOI: |
https://doi.org/10.1007/s10658-022-02530-w |
|
Idioma: |
Português |
|
Conteúdo: |
Charcoal rot is an economically important fungal disease of economically important crops. Several species of the Macrophomina genus, such as M. pseudophaseolina and M. euphorbiicola, may act as the causal agents of charcoal rot. The current study evaluates: a) the diversity of vegetative compatibility reactions in Brazilian isolates of M. pseudophaseolina (totalling 27) and M. euphorbiicola (totalling 3), b) the genetic variability of Brazilian isolates, and c) the occurrence of parasexual recombination in M. pseudophaseolina isolates. In complementation tests, 2 and 18 Vegetative Compatibility Groups (VCGs) were identified for the M. euphorbiicola and M. pseudophaseolina isolates, respectively. Correlations between VCG and the isolates´geographic origin were not found since most isolates derived from the same localities were grouped in distinct VCGs, demonstrating their genetic variability. Further, RAPD analysis of the isolates did not reveal significant correlations between genotype, geographic location and hosts, since isolates derived from distinct localities or hosts formed the same RAPD group. Heterozygous diploids were produced as fast-growing sectors by heterokaryons formed with M. pseudophaseolina isolates, demonstrating, for the first time, the occurrence of the parasexual cycle in the species, based on molecular and phenotypic evidence. Diploids spontaneously produced paternal segregants and parasexual recombinants, demonstrating that parasexuality is an important mechanism for transferring genetic material in filamentous fungi. Results suggest that parasexual recombination may play an important role in the genetic variability of M. pseudophaseolina and may be the cause for the origin of new pathotypes, which could compromise disease control strategies in crops. MenosCharcoal rot is an economically important fungal disease of economically important crops. Several species of the Macrophomina genus, such as M. pseudophaseolina and M. euphorbiicola, may act as the causal agents of charcoal rot. The current study evaluates: a) the diversity of vegetative compatibility reactions in Brazilian isolates of M. pseudophaseolina (totalling 27) and M. euphorbiicola (totalling 3), b) the genetic variability of Brazilian isolates, and c) the occurrence of parasexual recombination in M. pseudophaseolina isolates. In complementation tests, 2 and 18 Vegetative Compatibility Groups (VCGs) were identified for the M. euphorbiicola and M. pseudophaseolina isolates, respectively. Correlations between VCG and the isolates´geographic origin were not found since most isolates derived from the same localities were grouped in distinct VCGs, demonstrating their genetic variability. Further, RAPD analysis of the isolates did not reveal significant correlations between genotype, geographic location and hosts, since isolates derived from distinct localities or hosts formed the same RAPD group. Heterozygous diploids were produced as fast-growing sectors by heterokaryons formed with M. pseudophaseolina isolates, demonstrating, for the first time, the occurrence of the parasexual cycle in the species, based on molecular and phenotypic evidence. Diploids spontaneously produced paternal segregants and parasexual recombinants, demonstrating that parasexuality is an importan... Mostrar Tudo |
|
Palavras-Chave: |
HSI phenotype; Parasexual recombination; RAPD/PCR. |
|
Thesagro: |
Doença Fúngica. |
|
Thesaurus Nal: |
Charcoal rot; Fungal diseases of plants; Parasexual cycle. |
|
Categoria do assunto: |
S Ciências Biológicas |
|
Marc: |
null
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Algodão (CNPA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 3 | |
| 1. |  | OLIVEIRA, H. S. de; LEMOS, O. F. de; MENEZES, I. C. de; CARDOSO, J. de N. O.; SILVA, A. da L. da. Efeito de concentrações de BAP na proliferação de gemas in vitro de pimenteira-do-reino. Horticultura Brasileira, Brasília, DF, v. 23, n. 2, p. 638, ago. 2005. Suplemento. Edição dos resumos: CONGRESSO BRASILEIRO DE OLERICULTURA, 45.; CONGRESSO BRASILEIRO DE FLORICULTURA E PLANTAS ORNAMENTAIS, 15.; CONGRESSO BRASILEIRO DE CULTURA DE TECIDOS DE PLANTAS, 2., 2005, Fortaleza, CE.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
|    |
| 2. | | CARDOSO, J. de N. O.; LEMOS, O. F. de; OLIVEIRA, H. S. de; MENEZES, I. C. de; SILVA, A. da L. da. Obtenção de plantas doadoras de explantes para o estabelecimento do processo de micropropagação do cupuaçuzeiro (Theobroma grandiflorum Wild Ex Spreng) Schumm. Horticultura Brasileira, Brasília, DF, v. 23, n. 2, p. 637, ago. 2005. Suplemento. Edição dos resumos: CONGRESSO BRASILEIRO DE OLERICULTURA, 45.; CONGRESSO BRASILEIRO DE FLORICULTURA E PLANTAS ORNAMENTAIS, 15.; CONGRESSO BRASILEIRO DE CULTURA DE TECIDOS DE PLANTAS, 2., 2005, Fortaleza, CE.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
| |
| 3. | | SILVA, A. da L. da; CARDOSO, J. de N. O.; LEMOS, O. F. de; MENEZES, I. C. de; OLIVEIRA, H. S. de. Propagação assexuada de helicônia (Heliconia sp.) utilizando diferentes tipos de pseudocaules. Horticultura Brasileira, Brasília, DF, v. 23, n. 2, p. 659, ago. 2005. Suplemento. Edição dos resumos: CONGRESSO BRASILEIRO DE OLERICULTURA, 45.; CONGRESSO BRASILEIRO DE FLORICULTURA E PLANTAS ORNAMENTAIS, 15.; CONGRESSO BRASILEIRO DE CULTURA DE TECIDOS DE PLANTAS, 2., 2005, Fortaleza, CE.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
| |
| Registros recuperados : 3 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
