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Registro Completo |
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Biblioteca(s): |
Embrapa Café; Embrapa Unidades Centrais. |
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Data corrente: |
01/03/2011 |
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Data da última atualização: |
04/03/2011 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
DIOLA, V.; BRITO, G. G. G.; GALLINA, A. P.; CAIXETA, E. T.; SAKYAMA, N. S.; LOUREIRO, M. E. |
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Afiliação: |
UFV; UFV; BIOAGRO/UFV; EVELINE TEIXEIRA CAIXETA, SAPC; BIOAGRO/UFV; UFV/BIOAGRO. |
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Título: |
High density genetic mapping of resistance gene to race II of Hemileia vstatrix in hibrido de timor genotype. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 22., 2008, Campinas. |
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Idioma: |
Inglês |
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Conteúdo: |
Coffee leaf rust caused by the fungus Hemileia vastatrix is the most important disease of Coffea Arabica, and can be responsible for reductions about 35 to 50% in coffee production in infected fields. In the Híbrido de Timor (HT) populations were detected resistance genes, that alone or in association, could confer resistance to several different physiologic races of H. vastatrix. The objective of this study was to generate a high density genetic map surrounding a single rust resistance gene. The mapping population (F2 UFV 421-4) was composed by 224 plants, derived from F1 self-fertilized individuals, which were derived from the cross between HT UFV 427-15 and the susceptible clone Catuai Amarelo IAC 30 (UFV 2143-236). Phenotypic characterization was performed by infection rate analysis of leaf disc inoculated with monospore cell culture rust race IIb spores. Phenotipic segregation in this population follow a rate of 3 resistant to 1 susceptible individual. Two BSAs (Bulked Segregant Analysis), one for resistant and other for susceptible plants, were composed by 5 genotypes each. About 770 primer combinations were used in AFLP analysis, and 15 markers were obtained. This marker delimited a chromosomal region of 90 cM. The nearest marker was positioned at 3.2 cM of the resistance gene, and it is inside a region of 6.6 cM between the markers limiting both gene sides. This make possible the obtaining of the physical map and to facility the studies of the signaling the defense answer in the interaction coffee x H. vastarix. MenosCoffee leaf rust caused by the fungus Hemileia vastatrix is the most important disease of Coffea Arabica, and can be responsible for reductions about 35 to 50% in coffee production in infected fields. In the Híbrido de Timor (HT) populations were detected resistance genes, that alone or in association, could confer resistance to several different physiologic races of H. vastatrix. The objective of this study was to generate a high density genetic map surrounding a single rust resistance gene. The mapping population (F2 UFV 421-4) was composed by 224 plants, derived from F1 self-fertilized individuals, which were derived from the cross between HT UFV 427-15 and the susceptible clone Catuai Amarelo IAC 30 (UFV 2143-236). Phenotypic characterization was performed by infection rate analysis of leaf disc inoculated with monospore cell culture rust race IIb spores. Phenotipic segregation in this population follow a rate of 3 resistant to 1 susceptible individual. Two BSAs (Bulked Segregant Analysis), one for resistant and other for susceptible plants, were composed by 5 genotypes each. About 770 primer combinations were used in AFLP analysis, and 15 markers were obtained. This marker delimited a chromosomal region of 90 cM. The nearest marker was positioned at 3.2 cM of the resistance gene, and it is inside a region of 6.6 cM between the markers limiting both gene sides. This make possible the obtaining of the physical map and to facility the studies of the signaling the defense a... Mostrar Tudo |
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Thesagro: |
Coffea Arábica; Hemileia Vastatrix. |
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Categoria do assunto: |
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Marc: |
LEADER 02175nam a2200193 a 4500
001 1880082
005 2011-03-04
008 2008 bl uuuu u00u1 u #d
100 1 $aDIOLA, V.
245 $aHigh density genetic mapping of resistance gene to race II of Hemileia vstatrix in hibrido de timor genotype.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 22., 2008, Campinas.$c2008
520 $aCoffee leaf rust caused by the fungus Hemileia vastatrix is the most important disease of Coffea Arabica, and can be responsible for reductions about 35 to 50% in coffee production in infected fields. In the Híbrido de Timor (HT) populations were detected resistance genes, that alone or in association, could confer resistance to several different physiologic races of H. vastatrix. The objective of this study was to generate a high density genetic map surrounding a single rust resistance gene. The mapping population (F2 UFV 421-4) was composed by 224 plants, derived from F1 self-fertilized individuals, which were derived from the cross between HT UFV 427-15 and the susceptible clone Catuai Amarelo IAC 30 (UFV 2143-236). Phenotypic characterization was performed by infection rate analysis of leaf disc inoculated with monospore cell culture rust race IIb spores. Phenotipic segregation in this population follow a rate of 3 resistant to 1 susceptible individual. Two BSAs (Bulked Segregant Analysis), one for resistant and other for susceptible plants, were composed by 5 genotypes each. About 770 primer combinations were used in AFLP analysis, and 15 markers were obtained. This marker delimited a chromosomal region of 90 cM. The nearest marker was positioned at 3.2 cM of the resistance gene, and it is inside a region of 6.6 cM between the markers limiting both gene sides. This make possible the obtaining of the physical map and to facility the studies of the signaling the defense answer in the interaction coffee x H. vastarix.
650 $aCoffea Arábica
650 $aHemileia Vastatrix
700 1 $aBRITO, G. G. G.
700 1 $aGALLINA, A. P.
700 1 $aCAIXETA, E. T.
700 1 $aSAKYAMA, N. S.
700 1 $aLOUREIRO, M. E.
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| Registros recuperados : 431 | |
| 41. |  | ALVES, J. da S.; LEDO, C. A. da S.; SILVA, S. de O. e. Análise da adaptabilidade e estabilidade de genótipos de bananeira. In: SEMINÁRIO DE PESQUISA DO RECÔNCAVO DA BAHIA, 2.; SEMINÁRIO ESTUDANTIL DE PESQUISA DA UFRB, 2.; SEMINÁRIO DE PÓS-GRADUAÇÃO DA UFRB, 2., 2008, Cruz das Almas, BA. Sustentabilidade ambiental e qualidade de vida. Cruz das Almas: Universidade Federal do Recôncavo da Bahia, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 43. | | LESSA, L. S.; LEDO, C. A. da S.; SILVA, S. de O. e; PEIXOTO, C. P. Agronomical evaluation of (AA) banana diploid hybrids. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 20.; ANNUAL MEETING OF THE INTERAMERICAN SOCIETY FOR TROPICAL HORTICULTURE, 54., 2008, Vitória. Frutas para todos: estratégias, tecnologias e visão sustentável: anais. Vitória: INCAPER: Sociedade Brasileira de Fruticultura, 2008. P.013.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 51. | | FUKUDA, W. M. G.; SILVA, S. de O. e; MENDES, R. A. Caracterizacao morfologica e agronomica do banco ativo de germoplasma de mandioca do centro nacional de mandioca e fruticultura tropical Sao Pedro, SP: Centro de Raizes Tropicais/UNESP/SBM, 1996. 1p. In: CONGRESSO LATINO AMERICANO DE RAIZES TROPICAIS, 1, E CONGRESSO BRASILEIRO DE MANDIOCA, 9, 1996, Sao Pedro: Programa e Resumos...| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 56. | | OLIVEIRA, T. K. de; LESSA, L. S.; SILVA, S. de O. e; OLIVEIRA, J. P. de. Características agronômicas de genótipos de bananeira em três ciclos de produção em Rio Branco, AC. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 43, n. 8, p. 1003-1010, ago. 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
| Biblioteca(s): Embrapa Acre; Embrapa Mandioca e Fruticultura; Embrapa Unidades Centrais. |
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| 58. | | RIBEIRO, L. R.; SILVA, S. de O. e.; BORGES, A. L.; OLIVEIRA, L. M. de. Características de desenvolvimento de bananeira em sistema orgânico de cultivo. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS; WORKSHOP EM BIOPROSPECÇÃO E CONSERVAÇÃO DE PLANTAS NATIVAS DO SEMI-ÁRIDO, 3.; WORKSHOP INTERNACIONAL SOBRE BIOENERGIA E MEIO AMBIENTE, 2010, Salvador. Bancos de germoplasma: descobrir a riqueza, garantir o futuro: anais. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2010. 1 CD-ROM (Embrapa Recursos Genéticos e Biotecnologia. Documentos, 304). pdf. 172| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 431 | |
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