Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1082915 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR28240556_1.fastq.gz | Fastqsanger.gz | |||
| SRR28240556_2.fastq.gz | Fastqsanger.gz | |||
| SRR28240557_1.fastq.gz | Fastqsanger.gz | |||
| SRR28240557_2.fastq.gz | Fastqsanger.gz | |||
| SRR28240558_1.fastq.gz | Fastqsanger.gz |
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Project description:Storage at low temperatures is one of the most used methods to prolong the life of postharvest peaches (Prunus persica (L) Batch.). However, fruit quality is adversely affected by the development of woolliness, a physiological disorder that is apparent when the fruit is ripened after prolonged periods of cold storage and is mainly manifested as loss of juice in the peaches. The aim of this study was to obtain a more detailed cohort of genes that underlie the wolliness in a segregating population with contrasting phenotypes of mealiness after being exposed to cold storage at 4 °C. For this, a transcriptomics approach was applied to fruits from a progeny of individuals accounted for 6% more juicy and woolly 6% over a 2 years. Our results suggest that not only genes related to the maintenance of cell wall architecture may contribute to the development of mealy phenotype. Based on its possible physiological process and differential pattern of expression transcriptomic profiles show that genes related to maintenance (modification I) and membrane fluidity account for the differences between fruits that exhibit contrasting phenotypes of mealiness. These genes may contribute to tolerance to cold during storage. We analyzed a total of 9 woolly fruits (from 3 different trees, 3 fruits from each tree) and 12 juicy fruits (from 4 different trees, 3 fruits from each tree). An RNA pool from 9 woolly fruits was used as reference and was compared to an RNA pool of 3 juicy fruits from each individual tree. Two technical replicates were done for each comparison, thus making in total 8 hybridizations.
2011-10-25 | E-GEOD-33027 | biostudies-arrayexpress
Project description:During ripening of fruits stored under low temperatures, a number of physiological alterations which are manifested in a reduction of juice content take place, resulting in the apparition of woolly fruits. Modifications in cell wall structure during the ripening process are proposed to be key to determine the decreasing of juice content in woolly fruits. Under the assumption that changes in relative abundance of genes related to cell wall metabolism would be involved in woolliness development, in this work we present an analysis of the expression of multiple genes, which serves as an approximation to uncover the mechanisms behind this physiological alteration. The expression of 847 genes was examined using macroarrays hybridizations. Membranes were hybridized with 32P-labeled cDNAs synthesized from mRNAs of juice and woolly peaches. The results showed that 67.5% of the clones (n = 573) fulfilled all filter criteria and they were selected for sequence analysis. Our analysis indicate that 45% of transcripts which present a consistent expression level in all biological replicates are activated exclusively in juice condition, and only 15% in woolly fruits. In the resting 40% (transcripts common to both conditions,) only 5% presents an abundance increase in woolly samples. Keywords: Analysis of physiological disorder in peaches
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Project description:12plex_vitis_2011-02 - 12plex_vitis_2011_02_24h - Biological question (15 lines max): Identification of grape genes regulated in response to resistance inducer treatments. This transcriptomic analysis should provide insight in the mode of action of the compounds under study and yield generic data relevant to grape defense reaction. - Identification of grape genes regulated in response to resistance inducer treatments. This transcriptomic analysis should provide insight in the mode of action of the compounds under study and yield generic data relevant to grape defense reaction.
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