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Registros recuperados: 9
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Genetic basis of resistance in Eucalyptus spp. pathosystems. Repositório Alice
ALFENAS, A. C.; GUIMARÃES, L. M. da S.; RESENDE, M. D. V. de.
2012
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Puccinia psidii; Ceratocystis fimbriata; Chrysoporthe cubensis; Melhoramento genético vegetal; Eucalipto.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/943853
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Genetic control of Eucalyptus urophylla and E. grandis resistance to canker caused by Chrysoporthe cubensis. Repositório Alice
GUIMARÃES, L. M. da S.; RESENDE, M. D. V. de; LAU, D.; ROSSE, L. N.; ALVES, A. A.; ALFENAS, A. C..
Chrysophorte cubensis induced canker occurs in nearly all tropical and subtropical regions where eucalypts are planted, causing losses in both wood quality and volume productivity, especially so in the warmer and more humid regions of Brazil. The wide inter and intra-specific genetic variability of resistance to canker among Eucalyptus species facilitates the selection of resistant plants. In this study, we evaluated resistance to this pathogen in five Eucalyptus grandis (G) and 15 E. urophylla (U) trees, as well as in 495 individuals from 27 progenies derived from crosses between the trees. In the field, six-months-old test seedlings were inoculated with C. cubensis. Lesion length in the xylem and bark was measured eight months later. The results...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Eucalyptus; Controle genético.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/860261
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Genetic control of resistance on Mangifera indica to Ceratocystis wilt. Repositório Alice
ARRIELA, D. A. A.; GUIMARÃES, L. M. da S.; RESENDE, M. D. V. de; LIMA NETO, F. P.; SILVA, D. F. S. H. S.; SIQUEIRA, D. L. de; ALFENAS, A. C..
Ceratocystis wilt, caused by Ceratocystis fimbriata is one of the most serious limiting factors for mango production in Brazil. Despite efforts in the selection and the identification of mango cultivars resistant to Ceratocystis wilt, the genetic basis of the resistance remains unknown. Therefore, the objective of this study was to understand the inheritance of resistance to C. fimbriata by artificial inoculations of the pathogen in progenies of six commercial varieties of mango using ?Tommy Atkins? as the male parent. The cultivars ?Keitt?, ?Palmer?, ?Tommy Atkins? and ?Van Dyke? were confirmed as moderately resistant, whereas ?Coquinho?, ?Espada? and ?Haden? were susceptible. The results of the inoculation on the progenies of these cultivars revealed...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Espécie exótica; Ceratocystis wilt; Manga; Doença de planta; Fungo; Mangifera indica; Plant diseases and disorders.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1061193
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Genetic mapping and validation of QTLs associated with resistance to Calonectria leaf blight caused by Calonectria pteridis in Eucalyptus. Repositório Alice
ZARPELON, T. G.; GUIMARÃES, L. M. da S.; FARIA, D. A.; COUTINHO, M. M.; CÁPUA NETO, B.; TEIXEIRA, R. U.; GRATTAPAGLIA, D.; ALFENAS, A. C..
bitstream/item/179925/1/Zarpelon2014-Article-GeneticMappingAndValidationOfQ.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Forest pathology; Geneticmap; Microsatellite markers; Genetic resistance.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1025974
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Genetic mapping provides evidence for the role of additive and non-additive QTLs in the response of inter-specific hybrids of Eucalyptus to Puccinia psidii rust infection. Repositório Alice
ALVES, A. A.; ROSADO, C. C. G.; FARIA, D. A.; GUIMARÃES, L. M. da S.; LAU, D.; BROMMONSCHENKEL, S. H.; GRATTAPAGLIA, D.; ALFENAS, A. C..
2012
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Eucalyptus; Puccinia rust resistance; Genetic control; Epistatic QTL mapping.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/949715
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QTL mapping for resistance to Ceratocystis wilt in Eucalyptus. Repositório Alice
ROSADO, C. C. G.; GUIMARÃES, L. M. da S.; FARIA, D. A.; RESENDE, M. D. V. de; CRUZ, C. D.; GRATTAPAGLIA, D.; ALFENAS, A. C..
bitstream/item/183297/1/Rosado2016-Article-QTLMappingForResistanceToCerat.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Genetic mapping; Sib-pair interval-mapping; Ceratocystis Fimbriata; Eucalyptus; Quantitative trait loci.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1053783
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Resistance of Eucalyptus pellita to rust (Puccinia psidii). Repositório Alice
SANTOS, M. R.; GUIMARÃES, L. M. da S.; RESENDE, M. D. V. de; ROSSE, L. N.; ZAMPROGNO, K. C.; ALFENAS, A. C..
Eucalypts rust (Puccinia psidii) is currently one of the major diseases in commercial eucalypt plantations in Brazil. The primary method of disease control is the use of resistant genotypes, and, among the different species of Eucalyptus, E. pellita is indicated as a promising source of resistance. In this work, the genetic control of rust resistance in E. pellita through inoculations under controlled conditions of 441 plants from four full-sibling families was studied. Inoculations were performed using the monopostular isolate UFV-2, race 1. All families tested segregated for rust resistance, and the number of resistant plants was higher than susceptible in all crosses. Inheritance models based on few genes did not fully explain the observed segregation...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Eucalipto; Eucalyptus pellita; Espécie florestal; Espécie exótica; Puccinia psidii; Resistência genética; Herança quantitativa; Herdabilidade; Doença.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1003356
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Resistance to ceratocystis wilt (Ceratocystis fimbriata) in parents and progenies of Eucalyptus grandis x E. urophylla. Repositório Alice
ROSADO, C. C. G.; GUIMARÃES, L. M. da S.; TITON, M.; LAU, D.; ROSSE, L.; RESENDE, M. D. V. de; ALFENAS, A. C..
Ceratocystis wilt, caused by Ceratocystis fimbriata, is one ofthe most damaging diseases in eucalyptus plantations worldwide. Although there are resistant genotypes, the genetic basis of resistance is still poorly understood. In this paper we studied the resistance leveI by a stem inoculation experiment of genotypes of Eucalyptus grandis and E. urophylla and estimated the heritability and gains of selection in families derived from controlled interspecific crosses. In both species, highly resistant as well as highly susceptible genotypes to Ceratocystis wilt were found. Out of 21 parents assessed, twelve were resistant and nine susceptible. Estimates of individual narrow (50%) and broad (59%) sense heritability suggested a high degree of genetic control...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Eucalipto; Doença; Ceratocystis fimbriata; Resistência.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/864849
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Xanthomonas axonopodis pv. eucalyptorum pv. nov. causing bacterial leaf blight on eucalypt in Brazil. Repositório Alice
FERRAZ, H. G. M.; BADEL, J. L.; GUIMARÃES, L. M. da S.; REIS, B. P.; TÓTOLA, M. R.; GONCALVES, R. C.; ALFENAS, A. C..
Bacterial leaf blight is a major disease of eucalypt, especially under nursery conditions. Different bacterial species have been associated with the disease in several countries, and despite its importance worldwide, it is not clear to date whether similar disease symptoms are caused by the same or by different etiological agents. In this study, 43 bacterial strains were isolated from blighted eucalypt leaves collected in different geographic areas of Brazil and inoculated onto a susceptible eucalypt clone. Polyphasic taxonomy, including morphological, physiological, biochemical, molecular, and pathogenicity tests showed that only certain strains of Xanthomonas axonopodis caused symptoms of the disease. Strains varied in their aggressiveness, but no...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Enfermedades y desórdenes de las plantas; Cultivos de viveros; Enfermedades bacterianas de las plantas; Marchitez foliar; Doença de Planta; Eucalipto; Eucalyptus spp; Viveiro; Mancha Bacteriana; Plant diseases and disorders; Nursery crops; Bacterial diseases of plants; Leaf blight; Xanthomonas axonopodis.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102787
Registros recuperados: 9
Primeira ... 1 ... Última
 

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