The infected postharvest apple fruits
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ABSTRACT:
PROVIDER: PRJNA797890 | ENA |
REPOSITORIES: ENA
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Project description:Blue mold, caused by Penicillium expansum, is responsible for postharvest losses of apple fruit, and threatens human health through production of the potent mycotoxin patulin. No major gene(s) providing resistance have as yet been identified, but recent studies indicate a quantitative control of the disease. An AryANE chip covering 60K apple transcripts was used to identify possible candidate gene(s) that are differentially regulated between resistant and susceptible cultivars upon P. expansum infection. Induction of cell wall related gene (PGIP1), and three genes involved in the ‘down-stream’ flavonoid biosynthesis pathway (CHS, FLS and LDOX), shows the fundamental role of cell wall as an important barrier, and contents of polyphenolic compounds of fruits as a quantitative components in enhancing disease resistance to blue mold. Moreover, exogenous application of Jasmonic acid hormone enhanced the defense mechanism in fruits. This is the first report linking Jasmonic acid and activation of cell wall and flavonoid pathway genes in apple fruit resistance to blue mold. Results provide an initial categorization of genes that are potentially involved in the resistance mechanism, and should be useful for developing tools for gene marker-assisted breeding of apple cultivars with an improved resistance to blue mold. SUBMITTER_CITATION: Ahmadi-Afzadi, M., Orsel Baldwin, M., Pelletier, S., Cournol, M., Proux-Wéra, E., Nybom, H., Renou, J.-P. (2018). Genome-wide expression analysis suggests a role for jasmonates in the resistance to blue mold in apple. Plant Growth Regulation, 85 (3), 375-387. , DOI : 10.1007/s10725-018-0388-2
2018-06-01 | GSE99966 | GEO
Project description:This study aims to better understand the transcriptome changes of P. expansum and apple during early infection process.
2019-12-31 | GSE119039 | GEO
Project description:Gene expression in feeding larvae reciprocally transplanted into snowberry and apple fruits
2015-10-01 | GSE66975 | GEO
Project description:The main objective of this analysis was to sequence the epigenome of the Apple (Malus domestica) doubled haploid 'Golden Delicious' tree. Our secondary objective was to identify differentially methylated regions between DNA purified from leaves and young fruits.
2016-09-17 | GSE87014 | GEO
Project description:Molecular events regulating apple fruit ripening and sensory quality are largely unknown. Such knowledge is essential for genomic-assisted apple breeding and postharvest quality management. In this study, a parallel transcriptome profile analysis, scanning electron microscopic (SEM) examination and systematic physiological characterization were performed on two apple cultivars, Honeycrisp (HC) and Cripps Pink (CP), which have distinct ripening features and texture attributes. Systematic physiological characterization of fruit ripening based on weekly maturity data indicated substantial differences in fruit crispness and firmness at comparable ripening stages. SEM images of fruit cortex tissues prepared from fruits with equivalent maturity suggested that the cell wall thickness may contribute to the observed phenotypes of fruit firmness and crispness. A high-density long-oligo apple microarray consisting of duplex 190,135 cross-hybridization-free 50-70-mer isothermal probes, and representing 23,997 UniGene clusters, was manufactured on a Nimblegen array platform. Transcriptome profiling identified a total of 1793 and 1209 UniGene clusters differentially expressed during ripening from cortex tissues of HC and CP, respectively. UniGenes implicated in hormone metabolism and response, cell wall biosynthesis and modification and those encoding transcription factors were among the prominent functional groups. Between the two cultivars, most of the identified UniGenes were similarly regulated during fruit ripening; however, a short list of gene families or specific family members exhibited distinct expression patterns between the two cultivars, which may represent candidate genes regulating cultivar-specific apple fruit ripening patterns and quality attributes. Using a single color labeling system, a total of 24 microarray slides were utilized, one for each cortex tissue sample, for transcriptome profiling analysis. 2 cultivars x 3 developmental stages x 4 biological replicates.
2010-11-05 | E-GEOD-24523 | biostudies-arrayexpress
Project description:Gene expression associated with apple fruit ripening and postharvest treatments was studied to identify transcripts that are regulated by ethylene signaling.
2018-03-01 | GSE17678 | GEO
Project description:Molecular events regulating apple fruit ripening and sensory quality are largely unknown. Such knowledge is essential for genomic-assisted apple breeding and postharvest quality management. In this study, a parallel transcriptome profile analysis, scanning electron microscopic (SEM) examination and systematic physiological characterization were performed on two apple cultivars, Honeycrisp (HC) and Cripps Pink (CP), which have distinct ripening features and texture attributes. Systematic physiological characterization of fruit ripening based on weekly maturity data indicated substantial differences in fruit crispness and firmness at comparable ripening stages. SEM images of fruit cortex tissues prepared from fruits with equivalent maturity suggested that the cell wall thickness may contribute to the observed phenotypes of fruit firmness and crispness. A high-density long-oligo apple microarray consisting of duplex 190,135 cross-hybridization-free 50-70-mer isothermal probes, and representing 23,997 UniGene clusters, was manufactured on a Nimblegen array platform. Transcriptome profiling identified a total of 1793 and 1209 UniGene clusters differentially expressed during ripening from cortex tissues of HC and CP, respectively. UniGenes implicated in hormone metabolism and response, cell wall biosynthesis and modification and those encoding transcription factors were among the prominent functional groups. Between the two cultivars, most of the identified UniGenes were similarly regulated during fruit ripening; however, a short list of gene families or specific family members exhibited distinct expression patterns between the two cultivars, which may represent candidate genes regulating cultivar-specific apple fruit ripening patterns and quality attributes.
2010-11-05 | GSE24523 | GEO
Project description:A transcriptomic approach was implemented using two Penicillium species to identify genes related to fungal aggressiveness in apple fruit and loci contained in ungerminated conidia. Total RNA was isolated from ungerminated conidia and decayed apple fruit infected with P. expansum R19 (aggressive) or P. polonicum RS1 (weak). There were 2,442 differentially expressed genes (DEGs) between the R19 and RS1 in apple and comparisons within species between apple and conidia revealed 4,404 DEGs for R19, and 2935 for RS1, respectively. Gene ontology (GO) revealed differential regulation in fungal transport and metabolism genes expressed during decay, suggesting a flux in nutrient acquisition and detoxification strategies. In R19, the oxidoreductase GO category comprised 20% of all groups differentially expressed in decayed apple verses ungerminated conidia in addition to those involved in hydrogen peroxide metabolism. Ungerminated conidia from both species showed higher expression of genes encoding the glyoxylate shunt and beta-oxidation, specifying the earliest metabolic requirements for germination
2022-07-31 | GSE209987 | GEO
Project description:Based on sensorial analysis over 4 years, 6 apple genotypes with contrasted fruit texture (mealy or not) were selected among a progeny. Apple samples were collected at 100 days after flowering (100 DAF), harvest (H), after 2 and 4 months of cold storage (60DAH and 120DAH respectively). 6 apple hybrids were analysed in dye-switch. Biological replicates are fruits from 2 to 4 different harvest years. Each mealy hybrid was compared to a non-mealy hybrid from the same harvest year in 12 dye-swap 3 pairs at 4 four time points).
2015-06-25 | E-GEOD-59947 | biostudies-arrayexpress
Project description:Comparison of seed of two different types of developing fruits in apple: central and lateral. Our objective is to find transcriptomic signatures that allow to explain the physiological drop of young lateral fruitlets Apple seeds transcriptomes were generated by deep sequencing by triplicate from seeds collected from central and lateral fruitlets at 20 days after petal fall (DAPF)
2014-11-21 | E-GEOD-62415 | biostudies-arrayexpress