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Transcriptomic and GC-MS metabolomic analysis to provide insight into aroma volatile compounds of ‘Granny Smith’ and ‘Jonagold’ apples (Malus domestica)

ABSTRACT: Transcriptomic and GC-MS metabolomic analysis to provide insight into aroma volatile compounds of ‘Granny Smith’ and ‘Jonagold’ apples (Malus domestica)

PROVIDER: PRJNA735091 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14729149_1.fastq.gz	Fastqsanger.gz
	SRR14729149_2.fastq.gz	Fastqsanger.gz
	SRR14729150_1.fastq.gz	Fastqsanger.gz
	SRR14729150_2.fastq.gz	Fastqsanger.gz
	SRR14729151_1.fastq.gz	Fastqsanger.gz

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Transcriptomic and GC-MS metabolomic analysis to provide insight into aroma volatile compounds of ‘Granny Smith’ and ‘Jonagold’ apples (Malus domestica)

Project description:In order to know more about the expression levels of aroma-related genes involved in the metabolic pathways, transcriptome sequencing of Granny Smith and Jonagold apples was conducted utilizing the Illumina platform. Our study provides new insights on the understanding of transcriptional regulatory mechanisms associated with aroma volatiles formation in apples.

2022-03-02 | GSE176136 | GEO

Transcriptional profiling of Granny Smith apple peel (Malus x domestica Borkh) at harvest between contrasted years for scald incidence

Project description:Granny Smith apples (Malus x domestica Borkh) were harvested at early physiological mature stage in 2014, 2015 and 2017 and phenotyped for scald incidence after long time cold storage. Differential analyses were set-up for peel samples collected at harvest between fruit batches with low or high scald incidence.

2020-04-20 | GSE135863 | GEO

Effect of 1-MCP and ozone post-harvest treatments on the transcriptional profiling of Granny Smith apple peel (Malus x domestica Borkh) after cold storage.

Project description:Granny Smith apples (Malus x domestica Borkh) grown in commercial orchards were harvested at physiological mature stage and maintained 6 months in cold storage with or without 1-MCP post-harvest treatment, and with or without enriched ozone atmosphere.

2020-03-09 | GSE133456 | GEO

Comparative transcriptome and metabolomic survey reveal key pathways involved in the control of the chilling injury disorder superficial scald in two apple cultivars, ‘Granny Smith’ and ‘Ladina’

Project description:The low temperature normally applied to prevent fruit decay during the storage of apples, can also triggers the onset of a chilling injury disorder known as superficial scald. In this work, the etiology of this disorder and the mechanism of action of two preventing strategies, such as the application of 1-MCP and storage at low oxygen concentration in ‘Granny Smith’ and ‘Ladina’ apple cultivars was investigated. The metabolite assessment highlighted a reorganization of specific secondary metabolites, in particular flavan-3-ols (catechin, epicatechin and procyanidin B) and unsaturated fatty acids (oleic acid, linoleic acid and linolenic acid), while the genome-wide transcriptomic analysis grouped the DEGs into four functional clusters. The KEGG pathway, GO enrichment analysis, together with the gene-metabolite profiling interactome, showed as the treatment with 1-MCP prevented the development of superficial scald by actively promoting the production of unsaturated fatty acids, especially in ‘Granny Smith’. ‘Ladina’ was instead more susceptible to superficial scald, and characterized by a higher accumulation of very long chain fatty acids (VLCFAs). Storage at low oxygen concentration stimulated a higher accumulation of ethanol and acetaldehyde together with the expression of genes involved in anaerobic respiration, such as malate and alcohol dehydrogenase and pyruvate decarboxylase in both cultivars. Moreover, in ‘Granny Smith’ apple, the expression of three members of the VII subgroups of ERF genes, encoding for elements coordinating the acclimation process to hypoxia in plants was observed. The global RNA-Seq pattern also elucidated a specific transcriptomic signature between the two cultivars, validating the effect of the different genetic background in the control of this disorder.

2023-03-29 | GSE216082 | GEO

Malus domestica cultivar:Granny Smith

Project description:Malus domestica cultivar:Granny Smith Raw sequence reads

| PRJNA803936 | ENA

Malus domestica isolate:GS-4 | cultivar:Granny Smith

Project description:Malus domestica isolate:GS-4 | cultivar:Granny Smith Genome sequencing and assembly

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Malus domestica cultivar:Granny Smith and Honey crsip

Project description:Malus domestica cultivar:Granny Smith and Honey crsip Transcriptome or Gene expression

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Transcriptome and metabolic survey disclose the mode of action of static and dynamic low oxygen postharvest storage strategies to prevent the onset of superficial scald disorder in fruit of ‘Granny Smith’ apple cultivar

Project description:To preserve quality feature and ensuring availability of fresh fruit on the market, apples need to be stored. The low temperature applied during storage, beside avoiding important fruit loss, can also promote the development of serious chilling injury type of disorder, such as superficial scald. One of the strategies largely employed to prevent the development of this phenomenon is the control of the storage atmosphere, by lowering down the concentration of oxygen. In this work, a multifaceted survey was carried out to investigate the variation in transcriptome together with three categories of metabolites (phenolics, lipids and volatile organic compounds, VOCs) in fruit of ‘Granny Smith’ apple cultivar stored in both static and dynamic hypoxia condition for 5 and 7 months, respectively. The global transcriptome survey identified a core set of differentially expressed genes in three main functional groups, revealing as the duration of storage had an important effect in the coordination of gene expression. The effect of the storage time was furthermore highlighted by the DEG-network analysis that identified a distinct number and type of transcriptomic hubs. Samples characterized by the development of superficial scald were distinguished by a higher concentration of chlorogenic acid and a higher expression of PAL and PPO in a time specific fashion. The prevention of this phenomenon was instead related to distinctive re-programming events, involving the accumulation of specific antioxidant types of metabolites, very long chain fatty acids and the expression of genes coordinating an hypoxia acclimation process, such as RAP2-like and PCO.

2023-12-31 | GSE225233 | GEO

Transcriptome profiling of anthocyanin biosynthesis in the peel of 'Granny Smith' apples (Malus domestica) after bag removal.

Project description:BackgroundBagging is commonly used to enhance red pigmentation and thereby improve fruit quality of apples (Malus domestica). The green-skinned apple cultivar 'Granny Smith' develops red pigmentation after bagging removal, but the signal transduction pathways mediating light-induced anthocyanin accumulation in apple peel are yet to be defined. The aim of this study was to identify the mechanisms underpinning red pigmentation in 'Granny Smith' after bag removal based on transcriptome sequencing.ResultsThe anthocyanin content in apple peel increased considerably after bag removal, while only trace amounts of anthocyanins were present in the peel of unbagged and bagged fruits. RNA sequencing identified 18,152 differentially expressed genes (DEGs) among unbagged, bagged, and bag-removed fruits at 0, 4, and 10 days after bag removal. The DEGs were implicated in light signal perception and transduction, plant hormone signal transduction, and antioxidant systems. Weighted gene co-expression network analysis of DEGs generated a module of 23 genes highly correlated with anthocyanin content. The deletion of - 2026 to - 1870 bp and - 1062 to - 964 bp regions of the MdMYB1 (LOC103444202) promoter induced a significant decrease in glucuronidase activity and anthocyanin accumulation in apple peel.ConclusionsBagging treatment can induce red pigmentation in 'Granny Smith' via altering the expression patterns of genes involved in crucial signal transduction and biochemical metabolic pathways. The - 2026 to - 1870 bp and - 1062 to - 964 bp regions of the MdMYB1 promoter are essential for MdMYB1-mediated regulation of anthocyanin accumulation in the 'Granny Smith' apple cultivar. The findings presented here provide insight into the mechanisms of coloration in the peel of 'Granny Smith' and other non-red apple cultivars.

| S-EPMC6507055 | biostudies-literature

Pre-harvest climate and post-harvest acclimation to cold prevent from superficial scald development in Granny Smith apples.

Project description:Superficial scald is one of the most serious postharvest physiological disorders that can affect apples after a prolonged cold storage period. This study investigated the impact of pre- and post-harvest climatic variations on superficial scald in a susceptible apple cultivar. Fruit batches with contrasting phenotypes for superficial scald incidence were identified among several years of "Granny Smith" fruit production. The "low scald" year pre-harvest climate was characterised by a warm period followed by a sudden decrease in temperature, playing the part of an in vivo acclimation to cold storage. This was associated with many abiotic stress responsive genes which were induced in fruit peel. In particular 48 Heat Shock Proteins (HSPs) and 5 Heat Shock transcription Factors (HSFs) were strongly induced at harvest when scald incidence was low. For "high scald" year, a post-harvest acclimation of 1 week was efficient in reducing scald incidence. Expression profiles of stress related genes were affected by the acclimation treatment and indicate fruit physiological adaptations to cold storage. The identified stress-responsive genes, and in particular HSPs, could be useful indicators of the fruit physiological status to predict the risk of scald occurrence as early as harvest.

| S-EPMC7148358 | biostudies-literature

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