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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
27/04/2011 |
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Data da última atualização: |
29/04/2011 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MARTINS, P. K.; MAFRA, V. S.; KISHI, L. T.; FREITAS-ASTUA, J. |
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Afiliação: |
Polyanna Kelly Martins, APTA; Valéria S. Mafra, APTA; Luciano T. Kishi, APTA; JULIANA DE FREITAS ASTUA, CNPMF. |
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Título: |
Phylogenetic and comparative gene expression analysis of citrus WRKY transcription factor family. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE GENÉTICA MOLECULAR DE PLANTAS, 3, 2011, Ilhéus. Resumos. [S. l.]: Sociedade Brasileira de Genética, 2011. 1 CD-ROM. |
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Idioma: |
Inglês |
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Notas: |
pdf 35130 |
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Conteúdo: |
Plants have a variety of active defense mechanisms to protect themselves from pathogen infection. Plant defense response results from the transcriptional activation of a large number of genes upon pathogen infection or treatment with pathogen elicitors. Among them, WRKY proteins are considered important transcriptional regulators in defense signaling, including the activation of SAR (systemic acquired resistance). Several genes regulating plant defense, such as NPR1 and PR (Pathogenesis-related proteins), have W-box elements in their promoters that are specifically recognized by WRKY proteins also required for induction or expression. The defining feature of WRKY transcription factors is their DNA binding domain. The WRKY domain is about 60 residues in length that contains the WRKY signature and also an atypical zinc-finger structure at the C-terminus (Cx4?5Cx22?23HxH or Cx7Cx23HxC). The aim of this work was to identify all potential WRKY transcription factors in citrus, retrieved from the CitEST (Citrus ESTs) database and to construct a phylogenetic tree with orthologs from Arabidopsis thaliana and Oryza sativa. To find ESTs coding for WRKY proteins in citrus we performed a tBLASTn search on the CitEST database. The WRKY domain sequences of seven Arabidopsis WRKY family members each representing one of the WRKY subgroups were used as query sequences. Phylogenetic tree were constructed by the neighbor-joining (NJ) method in MEGA 4. NJ analysis was performed with the Pairwise Deletion option and the Poisson correction. For statistical reliability, bootstrap analysis was conducted with 1,000 replicates to assess statistical support for each node. The primary search resulted in 71 non-redundant hits, of which 9 were removed as they did not contain the conserved WRKY domain signature. The remaining 62 sequences were used to construct the phylogenetic tree; this analysis identified 19 unigenes for the group 1; 6 unigenes for the subgroup 2a, 3 unigenes for the subgroup 2b, 12 unigenes for the subgroup 2c, 13 unigenes for the group 2d, 9 unigenes for subgroup 2e and 7 unigenes for the group 3. To complete the phylogenetic analysis, WRKY sequences from the draft sequencing of the genomes of Citrus clementina and C. sinensis will be included. We are particularly interested in WRKY proteins involved in biotic stress, so the next step will be to evaluate the transcriptional profile of some WRKY genes under different biotic stress conditions. This study will be crucial to select candidates for citrus genetic transformation. MenosPlants have a variety of active defense mechanisms to protect themselves from pathogen infection. Plant defense response results from the transcriptional activation of a large number of genes upon pathogen infection or treatment with pathogen elicitors. Among them, WRKY proteins are considered important transcriptional regulators in defense signaling, including the activation of SAR (systemic acquired resistance). Several genes regulating plant defense, such as NPR1 and PR (Pathogenesis-related proteins), have W-box elements in their promoters that are specifically recognized by WRKY proteins also required for induction or expression. The defining feature of WRKY transcription factors is their DNA binding domain. The WRKY domain is about 60 residues in length that contains the WRKY signature and also an atypical zinc-finger structure at the C-terminus (Cx4?5Cx22?23HxH or Cx7Cx23HxC). The aim of this work was to identify all potential WRKY transcription factors in citrus, retrieved from the CitEST (Citrus ESTs) database and to construct a phylogenetic tree with orthologs from Arabidopsis thaliana and Oryza sativa. To find ESTs coding for WRKY proteins in citrus we performed a tBLASTn search on the CitEST database. The WRKY domain sequences of seven Arabidopsis WRKY family members each representing one of the WRKY subgroups were used as query sequences. Phylogenetic tree were constructed by the neighbor-joining (NJ) method in MEGA 4. NJ analysis was performed with the Pairwise... Mostrar Tudo |
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Palavras-Chave: |
CitEST; SAR; W-box. |
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Thesaurus Nal: |
Citrus; transcription factors. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 03255nam a2200217 a 4500
001 1886952
005 2011-04-29
008 2011 bl uuuu u00u1 u #d
100 1 $aMARTINS, P. K.
245 $aPhylogenetic and comparative gene expression analysis of citrus WRKY transcription factor family.
260 $aIn: SIMPÓSIO BRASILEIRO DE GENÉTICA MOLECULAR DE PLANTAS, 3, 2011, Ilhéus. Resumos. [S. l.]: Sociedade Brasileira de Genética, 2011. 1 CD-ROM.$c2011
500 $apdf 35130
520 $aPlants have a variety of active defense mechanisms to protect themselves from pathogen infection. Plant defense response results from the transcriptional activation of a large number of genes upon pathogen infection or treatment with pathogen elicitors. Among them, WRKY proteins are considered important transcriptional regulators in defense signaling, including the activation of SAR (systemic acquired resistance). Several genes regulating plant defense, such as NPR1 and PR (Pathogenesis-related proteins), have W-box elements in their promoters that are specifically recognized by WRKY proteins also required for induction or expression. The defining feature of WRKY transcription factors is their DNA binding domain. The WRKY domain is about 60 residues in length that contains the WRKY signature and also an atypical zinc-finger structure at the C-terminus (Cx4?5Cx22?23HxH or Cx7Cx23HxC). The aim of this work was to identify all potential WRKY transcription factors in citrus, retrieved from the CitEST (Citrus ESTs) database and to construct a phylogenetic tree with orthologs from Arabidopsis thaliana and Oryza sativa. To find ESTs coding for WRKY proteins in citrus we performed a tBLASTn search on the CitEST database. The WRKY domain sequences of seven Arabidopsis WRKY family members each representing one of the WRKY subgroups were used as query sequences. Phylogenetic tree were constructed by the neighbor-joining (NJ) method in MEGA 4. NJ analysis was performed with the Pairwise Deletion option and the Poisson correction. For statistical reliability, bootstrap analysis was conducted with 1,000 replicates to assess statistical support for each node. The primary search resulted in 71 non-redundant hits, of which 9 were removed as they did not contain the conserved WRKY domain signature. The remaining 62 sequences were used to construct the phylogenetic tree; this analysis identified 19 unigenes for the group 1; 6 unigenes for the subgroup 2a, 3 unigenes for the subgroup 2b, 12 unigenes for the subgroup 2c, 13 unigenes for the group 2d, 9 unigenes for subgroup 2e and 7 unigenes for the group 3. To complete the phylogenetic analysis, WRKY sequences from the draft sequencing of the genomes of Citrus clementina and C. sinensis will be included. We are particularly interested in WRKY proteins involved in biotic stress, so the next step will be to evaluate the transcriptional profile of some WRKY genes under different biotic stress conditions. This study will be crucial to select candidates for citrus genetic transformation.
650 $aCitrus
650 $atranscription factors
653 $aCitEST
653 $aSAR
653 $aW-box
700 1 $aMAFRA, V. S.
700 1 $aKISHI, L. T.
700 1 $aFREITAS-ASTUA, J.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 111 | |
| 21. |  | BASTIANEL, M.; FREITAS-ÁSTUA, J.; NICOLINI, F.; CRISTOFAI-YALY, M.; NOVELLI, V. M.; MACHADO, M. A. Differential gene response of citrus to CiLV. In: INTERNATIONAL CITRUS CONGRESS, 11., 2008, Wuhan, China. Program and abstracts... Wuhan: The International Society of Citriculture, 2008. p. 64. 115| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
|   |
| 22. | | NICOLINI, F.; BASTIANEL, M.; FREITAS-ÁSTUA, J.; ANTONIOLI-LUIZON, R.; SCHONS, J.; MACHADO, M. A. Quantificação do vírus da leprose dos citros no hospedeiro vegetal. Summa Phytopathologica, Botucatu, v. 34, , p. 66, fev. 2008. Suplemento. Edição dos Resumos do XXXI Congresso Paulista de Fitopatologia, Campinas, fev. 2008.
R 199| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 24. | | FARIA, A. S.; BASTIANEL, M.; MIRANDA, M.; NOVELLI, V. M.; FREITAS-ÁSTUA, J. Eficiência de transmissão do vírus da leprose dos citros nas diferentes fases ativas do ácaro vetor. Summa Phytopathologica, Botucatu, v. 34, , p. 58, fev. 2008. Suplemento. Edição dos Resumos do XXXI Congresso Paulista de Fitopatologia, Campinas, fev. 2008.
R 171| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 27. | | MASCARENHAS, G.; KITAJIMA, E. W.; PEREIRA, J. A.; KUBO, K. S.; FREITAS-ÁSTUA, J. Passiflora edulis: uma nova hospedeira para o vírus da mancha anular do cafeeiro (CoRSV). Tropical Plant Pathology, Brasília, DF, v. 34, ago. 2009. Suplemento. Edição dos Resumos do XLII Congresso Brasileiro de Fitopatologia, Rio de Janeiro, ago. 2009. Suplemento. Resumo 910.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 28. | | KUBO, K.; FREITAS-ASTÚA, J.; MACHADO, M.; BORGES, K.; KITAJIMA, E. Partial sequencing of clerodendron chlorotic spot virus, a new virus transmitted by Brevipalpus mites. In: INTERNATIONAL CONGRESS OF VIROLOGY, 14., 2008, Istanbul. Abstract book. Istambul: IUMS, 2008, p. 357-358. VP-366| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 29. | | NOVELLI, V. M.; FREITAS ASTUA, J.; PEREIRA, J. A.; KITAJIMA, E. W. Ocorrência de infecção natural de vírus transmitido por Bravipalpus spp. (VTB) do tipo citoplasmático em lírio da paz (Spathiphyllum wallisi). Tropical Plant Pathology, Brasília, DF, v. 34, ago. 2009. Suplemento. Edição dos Resumos do XLII Congresso Brasileiro de Fitopatologia, Rio de Janeiro, ago. 2009. Suplemento. Resumo 927.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 34. | | NOVELLI, V. M.; FREITAS-ASTÚA, J.; KITAJIMA, E. W.; GUIDOTTI, D. F. S.; MACHADO, M. A. Transmissão do vírus da leprose dos citros (CiLV-C) por populações apossimbióticas de B. phoenicis. Tropical Plant Pathology, Brasilia, DF, v. 33, supl., ago. 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
|  |
| 35. | | KUBO, K. S.; ARENA, G. D.; KITAJIMA, E. W; MACHADO, M. A.; FREITAS-ASTUA, J. de. Transmission of citrus leprosis virus c (CiLV-C) to Arabidopsis thaliana by Brevipalpus phoenicis mites. In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. 085 PS1
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 36. | | FREITAS-ASTUA, J.; ASTUA-MONGE, G.; POLSTON, J. E.; HIEBERT, E. A simple and reliable method for the screening of transgenic tobacco plants. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 38, n. 7, p. 893-896, jul. 2003 Notas Científicas.
Título em português: Método simples e confiável para avaliação de plantas de fumo transgênicas.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 37. | | NOVELLI, V. M.; FREITAS-ASTÚA, J.; SEGATTI, N.; HILF, M. E.; GOTTWALD, T. R.; MACHADO, M. A. Aquisição e inoculação do vírus da leprose dos citros (CiLV-C) por machos e fêmeas de Brevipalpus phoenicis. Fitopatologia Brasileira, Brasília, DF, v. 32, p. 293, ago. 2007. Suplemento. Edição dos Resumos do XL Congresso Brasiliero de Fitopatologia, Maringá, ago. 2007.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 38. | | PEREIRA, J. A.; ANTONIOLO-LUIZON, R.; LOCALI-FABRIS, E. C.; KUBO, K. S.; MACHADO, M. A.; FREITAS-ÁSTUA, J. Estudo da variabilidade genética da possível capa protéica do Citrus leprosis virus virus C (CiLV-C) em espécies de citros de 14 estados brasileiros. Tropical Plant Pathology, Brasília, DF, v. 34, ago. 2009. Suplemento. Edição dos Resumos do XLII Congresso Brasileiro de Fitopatologia, Rio de Janeiro, ago. 2009. Suplemento. Resumo 928.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 39. | | VENÂNCIO, A. L.; MILORI, D. M. B. P.; CARDINALI, M. C. B.; FERREIRA, E. J.; FREITAS-ASTÚA, J. Detecção precoce do Greening em citros usando espectroscopia de fluorescência induzida por laser (LIFS). In: JORNADA CIENTÍFICA-EMBRAPA SÃO CARLOS, 2009, São Carlos, SP. Anais... São Carlos: Embrapa Pecuária Sudeste: Embrapa Instrumentação Agropecuária, 2009. p. 46 (Embrapa Pecuária Sudeste. Documentos, 90)| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 40. | | COSTA, F. M.; BASTIANEL, M.; FREITAS-ASTUA, J.; KUBO, K. S.; MACHADO, M. A.; GONDIM JUNIOR, M. G. C. Detection of coffee ringspot virus (CoRSV) in the mite vector by RT-qPCR. In:INTERNATIONAL CONGRESS OF ACAROLOGY, 13., 2010, Recife. Abstracts book... Recife: CNPq: FACEPE: Banco do Nordeste: TWAS, 2010. p. 61-62. Abstract 109| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 111 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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