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ABSTRACT: Transcriptome of Cucumis melo with different maturity during storage

PROVIDER: PRJNA914834 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22858653_1.fastq.gz	Fastqsanger.gz
	SRR22858653_2.fastq.gz	Fastqsanger.gz
	SRR22858654_1.fastq.gz	Fastqsanger.gz
	SRR22858654_2.fastq.gz	Fastqsanger.gz
	SRR22858655_1.fastq.gz	Fastqsanger.gz

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Project description:Table grapes cv. Cardinal are highly perishable and their quality deteriorates during postharvest storage at low temperature mainly because of sensitivity to fungal decay and senescence of rachis. The application of a 3-day CO2 treatment with 20 kPa CO2 at 0C reduced total decay and retained fruit quality in early and late-harvested table grapes during postharvest storage. In order to study the transcriptional responsiveness of table grapes to low temperature and high CO2 levels in the first stage of storage and how the maturity stage affect these changes, we have performed a comparative large-scale transcriptional analysis. In the first stage of storage, low temperature led to a significantly intense change in grape skin transcriptome irrespective of fruit maturity, although there were different changes within each stage. In the case of CO2 treated samples, in comparison to fruit at time zero, only slight differences were observed. Functional enrichment analysis revealed that major modifications in the transcriptome profile of early- and late-harvested grapes stored at 0C are linked to biotic and abiotic stress-responsive terms. However, in both cases there is a specific reprogramming of the transcriptome during the first stage of storage at 0C in order to withstand the cold stress. Thus, genes involved in gluconeogenesis, photosynthesis, mRNA translation and lipid transport were up-regulated in the case of early-harvested grapes, and genes related to protein folding stability and intracellular membrane trafficking in late-harvested grapes. The beneficial effect of high CO2 treatment maintaining table grape quality seems to be an active process requiring the induction of several transcription factors and kinases in early-harvested grapes, and the activation of processes associated to the maintenance of energy in late-harvested grapes. Table grapes harvested at two maturity stages (early and late). 3 biological replicates. Early-harvested (MI:12.45) : Time zero, 3 days air 0C, 3 days high CO2 levels 0C. Late-harvested (MI: 41.08): Time zero, 3 days air 0C, 3 days high CO2 levels 0C.

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