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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
15/05/2007 |
Data da última atualização: |
31/07/2017 |
Autoria: |
CIAMPI, M. B.; KURAMAE, E. E.; FENILLE, R. C.; MEYER, M. C.; SOUZA, N. L.; CERESINI, P. C. |
Título: |
Intraspecific evolution of Rhizoctonia solani AG-1 IA associated with soybean and rice in Brazil based on polymorphisms at the ITS-5.8S rDNA operon. |
Ano de publicação: |
2005 |
Fonte/Imprenta: |
European Journal of Plant Pathology, v. 113, n. 2, p. 183-196, Oct. 2005. |
Idioma: |
Inglês |
Conteúdo: |
Rhizoctonia solani AG-1 IA causes leaf blight on soybean and rice. Despite the fact that R. solani AG-1 IA is a major pathogen affecting soybean and rice in Brazil and elsewhere in the world, little information is available on its genetic diversity and evolution. This study was an attempt to reveal the origin, and the patterns of movement and amplification of epidemiologically significant genotypes of R. solani AG-1 IA from soybean and rice in Brazil. For inferring intraspecific evolution of R. solani AG-1 IA sampled from soybean and rice, networks of ITS-5.8S rDNA sequencing haplotypes were built using the statistical parsimony algorithm from Clement et al. (2000) Molecular Ecology 9: 1657?1660. Higher haplotype diversity (Nei M 1987, Molecular Evolutionary Genetics Columbia University Press, New york: 512p.) was observed for the Brazilian soybean sample of R. solani AG-1 IA (0.827) in comparison with the rest of the world sample (0.431). Within the south-central American clade (3-2), four haplotypes of R. solani AG-1 IA from Mato Grosso, one from Tocantins, one from Maranhão, and one from Cuba occupied the tips of the network, indicating recent origin. The putative ancestral haplotypes had probably originated either from Mato Grosso or Maranhão States. While 16 distinct haplotypes were found in a sample of 32 soybean isolates of the pathogen, the entire rice sample (n=20) was represented by a single haplotype (haplotype 5), with a worldwide distribution. The results from nested-cladistic analysis indicated restricted gene flow with isolation by distance (or restricted dispersal by distance in nonsexual species) for the south-central American clade (3-2), mainly composed by soybean haplotypes. MenosRhizoctonia solani AG-1 IA causes leaf blight on soybean and rice. Despite the fact that R. solani AG-1 IA is a major pathogen affecting soybean and rice in Brazil and elsewhere in the world, little information is available on its genetic diversity and evolution. This study was an attempt to reveal the origin, and the patterns of movement and amplification of epidemiologically significant genotypes of R. solani AG-1 IA from soybean and rice in Brazil. For inferring intraspecific evolution of R. solani AG-1 IA sampled from soybean and rice, networks of ITS-5.8S rDNA sequencing haplotypes were built using the statistical parsimony algorithm from Clement et al. (2000) Molecular Ecology 9: 1657?1660. Higher haplotype diversity (Nei M 1987, Molecular Evolutionary Genetics Columbia University Press, New york: 512p.) was observed for the Brazilian soybean sample of R. solani AG-1 IA (0.827) in comparison with the rest of the world sample (0.431). Within the south-central American clade (3-2), four haplotypes of R. solani AG-1 IA from Mato Grosso, one from Tocantins, one from Maranhão, and one from Cuba occupied the tips of the network, indicating recent origin. The putative ancestral haplotypes had probably originated either from Mato Grosso or Maranhão States. While 16 distinct haplotypes were found in a sample of 32 soybean isolates of the pathogen, the entire rice sample (n=20) was represented by a single haplotype (haplotype 5), with a worldwide distribution. The results from n... Mostrar Tudo |
Thesagro: |
Arroz; Fungo; Soja. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02387naa a2200217 a 4500 001 1470001 005 2017-07-31 008 2005 bl --- 0-- u #d 100 1 $aCIAMPI, M. B. 245 $aIntraspecific evolution of Rhizoctonia solani AG-1 IA associated with soybean and rice in Brazil based on polymorphisms at the ITS-5.8S rDNA operon. 260 $c2005 520 $aRhizoctonia solani AG-1 IA causes leaf blight on soybean and rice. Despite the fact that R. solani AG-1 IA is a major pathogen affecting soybean and rice in Brazil and elsewhere in the world, little information is available on its genetic diversity and evolution. This study was an attempt to reveal the origin, and the patterns of movement and amplification of epidemiologically significant genotypes of R. solani AG-1 IA from soybean and rice in Brazil. For inferring intraspecific evolution of R. solani AG-1 IA sampled from soybean and rice, networks of ITS-5.8S rDNA sequencing haplotypes were built using the statistical parsimony algorithm from Clement et al. (2000) Molecular Ecology 9: 1657?1660. Higher haplotype diversity (Nei M 1987, Molecular Evolutionary Genetics Columbia University Press, New york: 512p.) was observed for the Brazilian soybean sample of R. solani AG-1 IA (0.827) in comparison with the rest of the world sample (0.431). Within the south-central American clade (3-2), four haplotypes of R. solani AG-1 IA from Mato Grosso, one from Tocantins, one from Maranhão, and one from Cuba occupied the tips of the network, indicating recent origin. The putative ancestral haplotypes had probably originated either from Mato Grosso or Maranhão States. While 16 distinct haplotypes were found in a sample of 32 soybean isolates of the pathogen, the entire rice sample (n=20) was represented by a single haplotype (haplotype 5), with a worldwide distribution. The results from nested-cladistic analysis indicated restricted gene flow with isolation by distance (or restricted dispersal by distance in nonsexual species) for the south-central American clade (3-2), mainly composed by soybean haplotypes. 650 $aArroz 650 $aFungo 650 $aSoja 700 1 $aKURAMAE, E. E. 700 1 $aFENILLE, R. C. 700 1 $aMEYER, M. C. 700 1 $aSOUZA, N. L. 700 1 $aCERESINI, P. C. 773 $tEuropean Journal of Plant Pathology$gv. 113, n. 2, p. 183-196, Oct. 2005.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
19/03/2010 |
Data da última atualização: |
14/06/2017 |
Tipo da produção científica: |
Folder/Folheto/Cartilha |
Autoria: |
TEIXEIRA, R. N. G. |
Afiliação: |
RAIMUNDO NONATO GUIMARAES TEIXEIRA, CPATU. |
Título: |
Sistema de produção de tambaqui em tanques-rede. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
Belém, PA: Embrapa Amazônia Oriental, [2009?]. |
Descrição Física: |
1 folder. |
Idioma: |
Português |
Thesagro: |
Peixe. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/86400/1/Digitalizar0143.pdf
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Marc: |
LEADER 00343nam a2200121 a 4500 001 1661826 005 2017-06-14 008 2009 bl uuuu u0uu1 u #d 100 1 $aTEIXEIRA, R. N. G. 245 $aSistema de produção de tambaqui em tanques-rede. 260 $aBelém, PA: Embrapa Amazônia Oriental, [2009?].$c2009 300 $c1 folder. 650 $aPeixe
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