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| Registros recuperados : 4 | |
| 1. |  | VALLE, C. B. do; SIMIONI, C.; PANIAGO, B. da C. Cruzamentos intraespecíficos em Brachiaria decumbens. In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 5., 2009, Guarapari. O melhoramento e os novos cenários da agricultura: anais. Vitória: Incaper, 2009. 1 CD-ROM. (Incaper. Documentos, 11). CBMP 2009. Organizado por Romário Gava Ferrão, Frederico de Pina Matta, Maria Amélia Gava Ferrão, João Cândido de Souza, Adelaide de F. S. da Costa, Liliâm Maria Ventorim Ferrão. 4 p. 1 CD-ROM.| Biblioteca(s): Embrapa Gado de Corte. |
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| 3. | | CANCADO, L. J.; PANIAGO, B. da C.; SANTOS, B. F. dos; GALEANO, S. L. de S.; VALLE, C. B. do. Identification of Microsatellite Markers Useful for Gene Flow Measurement in Brachiaria. In: INTERNATIONAL SYMPOSIUM ON FORAGE BREEDING, 3., 2011, Bonito, MS. Breeding forage for climate change adaptation and mitigation - eco-efficient animal produtction: proceedings. [Campo Grande, MS: Embrapa Gado de Corte], 2011. 145-148 1 CD-ROM| Biblioteca(s): Embrapa Gado de Corte. |
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| 4. | | PANIAGO, B. da C.; JUNGMANN, L.; VALLE, C. B. do; MEIRELES, K. G. X.; VILELA, M. de M.; OLIVEIRA, A. de; SANTOS, B. F. dos; WOSNIAK, H.; LEGUIZAMON, G. O. de C. Metodologia para extração de DNA em larga escala do tecido foliar de Brachiaria (Syn. Urochloa). Campo Grande, MS: Embrapa Gado de Corte, 2015 25 p. ( Embrapa Gado de Corte. Boletim de Pesquisa e Desenvolvimento, 36)| Biblioteca(s): Embrapa Gado de Corte. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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: |
19/06/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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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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Thesaurus NAL: |
Soybeans. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02418naa a2200241 a 4500
001 1457173
005 2024-06-19
008 2008 bl uuuu u00u1 u #d
100 1 $aCIAMPI, M. B.
245 $aGenetic structure of populations of Rhizoctonia solani Anastomosis Group-1 IA from soybean in Brazil.$h[electronic resource]
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 $aSoybeans
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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