Coffee Rust
Mostrando 25-36 de 68 artigos, teses e dissertações.
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25. Identification of coffee WRKY transcription factor genes and expression in resistance responses to pathogens.
In plants, WRKY proteins are a group of transcription factors existing as a gene superfamily that play important roles in regulation of defense response pathways. To assess the diversity of this protein family in coffee (Coffea spp.), data mining methods were used on a set of around 200,000 coffee expressed sequence tags. A total of 53 different putative WRK
TREE GENETICS & GENOMES. Publicado em: 2011
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26. Identification of coffee WRKY transcription factor genes and expression in resistance responses to pathogens.
In plants, WRKY proteins are a group of transcription factors existing as a gene superfamily that play important roles in regulation of defense response pathways. To assess the diversity of this protein family in coffee (Coffea spp.), data mining methods were used on a set of around 200,000 coffee expressed sequence tags. A total of 53 different putative WRK
TREE GENETICS & GENOMES. Publicado em: 2011
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27. Biphasic haustorial differentiation of coffee rust (Hemileia vastatrix race II) associated with defense responses in resistant and susceptible coffee cultivars.
The objective of this study was to assess whether defence responses in coffee (Coffea arabica) were linked to a specific developmental stage of the rust fungus Hemileia vastatrix. Histological observations in compatible and incompatible highyielding Brazilian coffee cultivars showed that the fungus produced ?pioneer? haustoria in adjacent and subsidiary stom
In.: PLANT PATHOLOGY. Publicado em: 2011
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28. Biphasic haustorial differentiation of coffee rust (Hemileia vastatrix race II) associated with defense responses in resistant and susceptible coffee cultivars.
The objective of this study was to assess whether defence responses in coffee (Coffea arabica) were linked to a specific developmental stage of the rust fungus Hemileia vastatrix. Histological observations in compatible and incompatible highyielding Brazilian coffee cultivars showed that the fungus produced ?pioneer? haustoria in adjacent and subsidiary stom
In.: PLANT PATHOLOGY. Publicado em: 2011
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29. Inheritance of coffee leaf rust reistance and identification of AFLP markers linked to the resistance gene.
The most important disease of Coffea arabica is coffee leaf rust caused by the fungus Hemileia vastatrix. The purpose of this study was to characterize the inheritance of coffee resistance gene(s) to race II of this pathogen and to identify and map molecular markers linked to this trait. Different populations were used: F2 (160 plants), BCr (20), and BCs (13
EUPHYTICA. Publicado em: 2011
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30. Inheritance of coffee leaf rust reistance and identification of AFLP markers linked to the resistance gene.
The most important disease of Coffea arabica is coffee leaf rust caused by the fungus Hemileia vastatrix. The purpose of this study was to characterize the inheritance of coffee resistance gene(s) to race II of this pathogen and to identify and map molecular markers linked to this trait. Different populations were used: F2 (160 plants), BCr (20), and BCs (13
EUPHYTICA. Publicado em: 2011
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31. Identification of a new race of Hemileia vastratix in Brazil.
In this study, a survey of physiological races of Hemileia vastatrix was carried out on 34 coffee leaf rust populations collected at several coffee genotypes in Brazil. After the inoculation on leaf disc of coffee differential clones, the races I, II, III, XIII, XVII and XXXVII were characterised. This is the first report of race XXXVII on Coffea arabica in
In.: AUSTRALASIAN PLANT DISEASE NOTES. Publicado em: 2011
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32. Identification of a new race of Hemileia vastratix in Brazil.
In this study, a survey of physiological races of Hemileia vastatrix was carried out on 34 coffee leaf rust populations collected at several coffee genotypes in Brazil. After the inoculation on leaf disc of coffee differential clones, the races I, II, III, XIII, XVII and XXXVII were characterised. This is the first report of race XXXVII on Coffea arabica in
In.: AUSTRALASIAN PLANT DISEASE NOTES. Publicado em: 2011
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33. Polymorphic information content of SSR markers for Coffea spp.
Thirty-three coffee SSR primers from enriched genomic library with (GT)15 and (AGG)10 repeats were analyzed in 24 coffee tree accessions. Twenty-two primers were polymorphic among accessions; the number of alleles ranged from 2 to 13, with the mean number of 5.1 alleles per primer. PIC values ranged from 0.08 to 0.79. The highest mean PIC values were found f
CROP BREEDING AND APPLIED BIOTECHNOLOGY. Publicado em: 2011
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34. Polymorphic information content of SSR markers for Coffea spp.
Thirty-three coffee SSR primers from enriched genomic library with (GT)15 and (AGG)10 repeats were analyzed in 24 coffee tree accessions. Twenty-two primers were polymorphic among accessions; the number of alleles ranged from 2 to 13, with the mean number of 5.1 alleles per primer. PIC values ranged from 0.08 to 0.79. The highest mean PIC values were found f
CROP BREEDING AND APPLIED BIOTECHNOLOGY. Publicado em: 2011
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35. Breeding potential and genetic diversity of "híbrido do timor" coffee evaluated by molecular markers.
AFLP, RAPD and SSR molecular markers were used to study the genetic diversity and genetic structure of the Híbrido de Timor germplasm. The principal coordinate analysis, UPGMA cluster analysis based on genetic dissimilarity of Jaccard, Bayesian model-based cluster analysis, percentage of polymorphic loci, Shannon?s information index and Nei gene diversity w
CROP BREEDING AND APPLIED BIOTECHNOLOGY. Publicado em: 2011
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36. Breeding potential and genetic diversity of "híbrido do timor" coffee evaluated by molecular markers.
AFLP, RAPD and SSR molecular markers were used to study the genetic diversity and genetic structure of the Híbrido de Timor germplasm. The principal coordinate analysis, UPGMA cluster analysis based on genetic dissimilarity of Jaccard, Bayesian model-based cluster analysis, percentage of polymorphic loci, Shannon?s information index and Nei gene diversity w
CROP BREEDING AND APPLIED BIOTECHNOLOGY. Publicado em: 2011