2011
DOI: 10.1590/s0100-29452011000500075
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Peaches tree genetic divergence for brown rot reaction

Abstract: It was evaluated the genetic divergence in peach genotypes for brown rot reaction. It was evaluated 26 and 29 peach genotypes in the 2009/2010 and 2010/2011 production cycle, respectively. The experiment was carried out at the Laboratório de Fitossanidade, da UTFPR - Campus Dois Vizinhos. The experimental design was entirely randomized, considering each peach genotype a treatment, and it was use three replication of nine fruits. The treatment control use three replication of three peach. The fruit epidermis we… Show more

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Cited by 5 publications
(7 citation statements)
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“…An example is the high BR resistance in the clingstone cultivar "Bolinha," associated with a more compact arrangement of epidermal and subepidermal cells, thicker cuticle, fewer trichomes, and higher phenolic content at full ripening (Feliciano et al 1987;Adaskaveg et al 1991). Despite poor fruit quality (high susceptibility to enzymatic browning, reduced fruit size, and high rate of pre-harvest fruit drop), Bolinha has been used as donor of BR resistance in conventional breeding for canning and low-chill peach (Gradziel et al 2003;Topp et al 2008;Wagner Júnior et al 2008;Wagner Junior et al 2011). The F1 population from "Contender"×"Elegant Lady" (C×EL) melting flesh peach cross provides an attractive system for the genetic dissection of the trait in cultivars for the fresh market (Bassi et al 1998;Bassi and Rizzo 2003).…”
Section: Communicated By E Dirlewangermentioning
confidence: 99%
“…An example is the high BR resistance in the clingstone cultivar "Bolinha," associated with a more compact arrangement of epidermal and subepidermal cells, thicker cuticle, fewer trichomes, and higher phenolic content at full ripening (Feliciano et al 1987;Adaskaveg et al 1991). Despite poor fruit quality (high susceptibility to enzymatic browning, reduced fruit size, and high rate of pre-harvest fruit drop), Bolinha has been used as donor of BR resistance in conventional breeding for canning and low-chill peach (Gradziel et al 2003;Topp et al 2008;Wagner Júnior et al 2008;Wagner Junior et al 2011). The F1 population from "Contender"×"Elegant Lady" (C×EL) melting flesh peach cross provides an attractive system for the genetic dissection of the trait in cultivars for the fresh market (Bassi et al 1998;Bassi and Rizzo 2003).…”
Section: Communicated By E Dirlewangermentioning
confidence: 99%
“…Activity showed a pattern similar to PR-10, that is, no significant change in PR-5 transcript levels after infection in resistant cultivars (‘Violetta’ and ‘Stanley’) and a rapid increase in susceptible genotypes (‘Veeblue’ and ‘Victory’). Furthermore, the ectopic overexpression of this protein in Arabidopsis thaliana transformants increased resistance to Alternaria brassicicola, as well as a higher induction of camalexin biosynthesis, and transcript abundance of genes coding to phenylalanine ammonia-lyase (PAL; a central point in phenylpropanoid and phytoalexin biosynthesis) and to three cytochrome P450s involved in the biosynthesis of some antifungal phenolics . Finally, the same authors, described a very similar expression pattern after M.…”
Section: Host Factors For Br Resistance/susceptibility In Fruitmentioning
confidence: 80%
“…Furthermore, the ectopic overexpression of this protein in Arabidopsis thaliana transformants increased resistance to Alternaria brassicicola, as well as a higher induction of camalexin biosynthesis, and transcript abundance of genes coding to phenylalanine ammonia-lyase (PAL; a central point in phenylpropanoid and phytoalexin biosynthesis) and to three cytochrome P450s involved in the biosynthesis of some antifungal phenolics. 155 Finally, the same authors, 156 described a very similar expression pattern after M. fructicola infection in the gene coding to MYB3 transcription factor of European plums, suggesting an intermediary role of this transcription factor in the hormone-mediated defense responses that result in the induction of PR proteins. The study of the variability of these genes, which have effects in defense pathways, in Prunus germplasm collections has a crucial importance in the generation of knowledge for the development of more resistant varieties of fruit species.…”
Section: Host Factors For Br Resistance/susceptibility In Fruitmentioning
confidence: 86%
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“…The genetic divergence analysis among genotypes of jabuticaba population is a useful data to characterize the available genetic resources (DANNER, 2009), as well as to increase the efficiency of breeding programs (RODRIGUES et al, 2010;WAGNER JÚNIOR et al, 2011a;WAGNER JÚNIOR et al, 2011b).…”
Section: Introductionmentioning
confidence: 99%