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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
16/04/2009 |
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Data da última atualização: |
04/08/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CIAMPI, M. B.; MEYER, M. C.; COSTA, M. J. N.; ZALA, M.; MCDONALD, B. A.; CERESINI, P. C. |
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Afiliação: |
M. B. CIAMPI, UNESP-Jaboticabal; MAURICIO CONRADO MEYER, CNPSo; M. J. N. COSTA, Fundação Rio Verde; M. ZALA, Institute of Integrative Biology, ETH Zurich; B. A. McDONALD, Institute of Integrative Biology, ETH Zurich; P. C. CERESINI, UNESP-Ilha Solteira. |
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Título: |
Genetic structure of populations of Rhizoctonia solani Anastomosis Group-1 IA from soybean in Brazil. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Phytopathology, St. Paul, v. 98, n. 8, p. 932-941, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
The Basidiomycete fungus Rhizoctonia solani anastomosis group (AG)-1 IA is a major pathogen of soybean in Brazil, where the average yield losses have reached 30 to 60% in some states in Northern Brazil. No information is currently available concerning levels of genetic diversity and population structure for this pathogen in Brazil. A total of 232 isolates of R. solani AG1 IA were collected from five soybean fields in the most important soybean production areas in central-western, northern, and northeastern Brazil. These isolates were genotyped using 10 microsatellite loci. Most of the multilocus genotypes (MLGTs) were site-specific, with few MLGTs shared among populations. Significant population subdivision was evident. High levels of admixture were observed for populations from Mato Grosso and Tocantins. After removing admixed genotypes, three out of five field populations (Maranhao, Mato Grosso, and Tocantins), were in Hardy-Weinberg (HW) equilibrium, consistent with sexual recombination. HW and gametic disequilibrium were found for the remaining soybean-infecting populations. The findings of low genotypic diversity, departures from HW equilibrium, gametic disequilibrium, and high degree of population subdivision in these R. solani AG-1 IA populations from Brazil are consistent with predominantly asexual reproduction, short-distance dispersal of vegetative propagules (mycelium or sclerotia), and limited long-distance dispersal, possibly via contaminated seed. None of the soybean-infecting populations showed a reduction in population size (bottleneck effect). We detected asymmetric historical migration among the soybean-infecting populations, which could explain the observed levels of subdivision. MenosThe Basidiomycete fungus Rhizoctonia solani anastomosis group (AG)-1 IA is a major pathogen of soybean in Brazil, where the average yield losses have reached 30 to 60% in some states in Northern Brazil. No information is currently available concerning levels of genetic diversity and population structure for this pathogen in Brazil. A total of 232 isolates of R. solani AG1 IA were collected from five soybean fields in the most important soybean production areas in central-western, northern, and northeastern Brazil. These isolates were genotyped using 10 microsatellite loci. Most of the multilocus genotypes (MLGTs) were site-specific, with few MLGTs shared among populations. Significant population subdivision was evident. High levels of admixture were observed for populations from Mato Grosso and Tocantins. After removing admixed genotypes, three out of five field populations (Maranhao, Mato Grosso, and Tocantins), were in Hardy-Weinberg (HW) equilibrium, consistent with sexual recombination. HW and gametic disequilibrium were found for the remaining soybean-infecting populations. The findings of low genotypic diversity, departures from HW equilibrium, gametic disequilibrium, and high degree of population subdivision in these R. solani AG-1 IA populations from Brazil are consistent with predominantly asexual reproduction, short-distance dispersal of vegetative propagules (mycelium or sclerotia), and limited long-distance dispersal, possibly via contaminated seed. None of the s... Mostrar Tudo |
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Thesagro: |
Doença de Planta; Fungo; Rhizoctonia Solani; Soja. |
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Categoria do assunto: |
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Marc: |
LEADER 02370naa a2200229 a 4500
001 1457173
005 2017-08-04
008 2008 bl --- 0-- u #d
100 1 $aCIAMPI, M. B.
245 $aGenetic structure of populations of Rhizoctonia solani Anastomosis Group-1 IA from soybean in Brazil.
260 $c2008
520 $aThe Basidiomycete fungus Rhizoctonia solani anastomosis group (AG)-1 IA is a major pathogen of soybean in Brazil, where the average yield losses have reached 30 to 60% in some states in Northern Brazil. No information is currently available concerning levels of genetic diversity and population structure for this pathogen in Brazil. A total of 232 isolates of R. solani AG1 IA were collected from five soybean fields in the most important soybean production areas in central-western, northern, and northeastern Brazil. These isolates were genotyped using 10 microsatellite loci. Most of the multilocus genotypes (MLGTs) were site-specific, with few MLGTs shared among populations. Significant population subdivision was evident. High levels of admixture were observed for populations from Mato Grosso and Tocantins. After removing admixed genotypes, three out of five field populations (Maranhao, Mato Grosso, and Tocantins), were in Hardy-Weinberg (HW) equilibrium, consistent with sexual recombination. HW and gametic disequilibrium were found for the remaining soybean-infecting populations. The findings of low genotypic diversity, departures from HW equilibrium, gametic disequilibrium, and high degree of population subdivision in these R. solani AG-1 IA populations from Brazil are consistent with predominantly asexual reproduction, short-distance dispersal of vegetative propagules (mycelium or sclerotia), and limited long-distance dispersal, possibly via contaminated seed. None of the soybean-infecting populations showed a reduction in population size (bottleneck effect). We detected asymmetric historical migration among the soybean-infecting populations, which could explain the observed levels of subdivision.
650 $aDoença de Planta
650 $aFungo
650 $aRhizoctonia Solani
650 $aSoja
700 1 $aMEYER, M. C.
700 1 $aCOSTA, M. J. N.
700 1 $aZALA, M.
700 1 $aMCDONALD, B. A.
700 1 $aCERESINI, P. C.
773 $tPhytopathology, St. Paul$gv. 98, n. 8, p. 932-941, 2008.
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| Registros recuperados : 611 | |
| 241. |  | MEYER, M. C.; COSTA, N. B.; FERREIRA, L. C.; NUNES JÚNIOR, J.; VENANCIO, W. S.; BEGLIOMINI, E. Comparison of the efficiency of soybean rust control by preventive and curative fungicides sprays, combined with different adjuvants, in Brazil. Plant Management Network, St. Paul, 2010. Edição do Proceedings do National Soybean Rust Symposium, New Orleans, 2009.| Tipo: Artigo em Anais de Congresso |
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| 243. | | TERAMOTO, A.; SANTOS, L. M.; SAHB, M. P.; MEYER, M. C.; VOLF, M. R.; CUNHA, M. G. Eficiência de fungicidas no controle de Corynespora cassiicola em soja. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 47.; SIMPÓSIO BRASILEIRO DE MOFO BRANCO, 2014, Londrina. Desafios futuros: anais. Londrina: SBF, 2014. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
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| 244. | | MEYER, M. C.; NUNES JUNIOR, J.; PIMENTA, C. B.; SILVA, V. A.; MENEZES, A. F.; CARVALHO, P. H. Eficiência de fungicidas no controle da ferrugem-asiática (Phakopsora pachyrhizi) em soja, na região central de Goiás. In: REUNIÃO DE PESQUISA DE SOJA, 34., 2014, Londrina. Resumos expandidos... Londrina: Embrapa Soja, 2014. p. 260-262.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 245. | | GARCIA, R. A.; MEYER, M. C.; SANTOS, J. R. C.; OLIVEIRA, R. M.; BARBOSA, K. A. G.; CUNHA, M. G. Efeito de temperatura e luminosidade sobre o crescimento micelial de Sclerotinia sclerotiorum. Tropical Plant Pathology, Brasília, DF, v. 36, Supl., p. 1207, ago. 2011. Edição dos Anais do 44 Congresso Brasileiro de Fitopatologia, Bento Gonçalves, ago. 2011.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 247. | | FRANÇA, P. P.; LORETO, R. B.; FAVORETO, L.; MEYER, M. C.; ANDRADE, D. F. M.; SILVA. S. A. Estudo do desenvolvimento da soja em diferentes níveis populacionais de Aphelenchoides besseyi e Pratylenchus brachyurus. In: CONGRESSO BRASILEIRO DE NEMATOLOGIA, 36, 2019, Caldas Novas. Nematoides: da Ciência ao Campo. [Anais, palestras e resumos]. Campinas: Infobibos, 2019. resumo 143. Título em inglês: Study of soybean development under different population levels of Aphelenchoides besseyi and Pratylenchus brachyurus.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 255. | | FILHO PALUDZYSZYN, E.; ALMEIDA, L. A.; KIIHL, R. A. S.; CAMPELO, G. J. A.; FARIA, L. C.; MEYER, M. C. Cultivar de soja Embrapa 30 (Vale do Rio Doce). In: CONGRESSO BRASILEIRO DE SOJA, 1999, Londrina. Anais... Londrina: Embrapa Soja, 1999. p.491. (Embrapa Soja. Documentos, 124).| Biblioteca(s): Embrapa Soja. |
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| 257. | | FILHO PALUDZYSZYN, E.; KIIHL, R. A. S.; ALMEIDA, L. A.; CAMPELO, G. J. A.; FARIA, L. C.; MEYER, M. C. Cultivar de soja Embrapa 31 (Mina). In: CONGRESSO BRASILEIRO DE SOJA, 1999, Londrina. Anais... Londrina: Embrapa Soja, 1999. p.491. (Embrapa Soja. Documentos, 124).| Biblioteca(s): Embrapa Soja. |
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| 259. | | FILHO PALUDZYSZYN, E.; KIIHL, R. A. S.; ALMEIDA, L. A.; CAMPELO, G. J. A.; FARIA, L. C.; MEYER, M. C. Cultivar de soja Embrapa 32 (Itaqui). In: CONGRESSO BRASILEIRO DE SOJA, 1999, Londrina. Anais... Londrina: Embrapa Soja, 1999. p.492. (Embrapa Soja. Documentos, 124).| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 611 | |
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