Differentially expressed genes in different aromatic grapes at ripening stage
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA929217 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR23266316_1.fastq.gz | Fastqsanger.gz | |||
| SRR23266316_2.fastq.gz | Fastqsanger.gz | |||
| SRR23266317_1.fastq.gz | Fastqsanger.gz | |||
| SRR23266317_2.fastq.gz | Fastqsanger.gz | |||
| SRR23266318_1.fastq.gz | Fastqsanger.gz |
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Project description:In order to investigate what differences exist in the aroma-regulated genes of grape varieties with different aromas, we established different aromatic grape varieties at the ripening stage and looked for the differential genes and their expression.
2023-01-31 | GSE223965 | GEO
Project description:Grape berries undergo considerable physical and biochemical changes during the ripening process. Ripening is characterized by a number of changes, including the degradation of chlorophyll, an increase in berry deformability, a rapid increase in the level of hexoses in the berry vacuole, an increase in berry volume, the catabolism of organic acids, the development of skin colour, and the formation of compounds that influence flavour, aroma, and therefore, wine quality. The aim of this work is to identify differentially expressed genes during grape ripening by microarray and real-time PCR techniques. Using a custom array of new generation, we analysed the expression of 6000 grape genes from pre-veraison to full maturity, in Vitis vinifera cultivar Muscat of Hamburg, in two different years (2006 and 2007). Five time points per year and two biological replicates per stadium were considered. To reduced intra-plant and inter-plant biological variability, for each ripening stadium we collected around hundred berries from several bunch grapes of five plants of V. vinifera cv Muscat of Hamburg. We will use the real-time PCR technique to validate microarray data.Muscat of Hamburg. We will use the real-time PCR technique to validate microarray data.
2010-11-09 | E-MEXP-2451 | biostudies-arrayexpress
Project description:Background Grapes (Vitis vinifera L.) are economically the most important fruit crop worldwide. However, the complexity of molecular and biochemical events that lead to the onset of ripening of nonclimacteric fruits is not fully understood which is further complicated in grapes due to seasonal and cultivar specific variantion. The Portuguese wine variety Trincadeira gives rise to high quality wines but presents extremely irregular berry ripening among seasons probably due to high susceptibility to abiotic and biotic stresses. Results Ripening of Trincadeira grapes was studied taking into account the transcriptional and metabolic profilings complemented with biochemical data. The mRNA expression profiles of four time points spanning developmental stages from pea size green berries, through veraison and mature berries (EL 32, EL 34, EL 35 and EL 36) and in two seasons (2007 and 2008) were compared using the Affymetrix GrapeGen® genome array containing 23096 probesets corresponding to 18726 unique sequences. Over 50% of these probesets were significantly differentially expressed (1.5 fold) between at least two developmental stages. A common set of modulated transcripts corresponding to 5862 unigenes indicates the activation of common pathways in between years despite the irregular development of Trincadeira grapes. These unigenes were assigned in the functional categories of “metabolism, development”, “cellular process”, “diverse functions”, “regulation overview”, “response to stimulus, stress”, “signaling”, “transport overview”, “xenoprotein, transposable element” and “unknown”. Metabolic profiling using 1H NMR spectroscopy associated to two-dimensional techniques showed the importance of metabolites related to oxidative stress response, amino acid and sugar metabolism as well as secondary metabolism in grape ripening. This information was integrated with transcriptional profiling obtained using genome array and qRT-PCR for five developmental stages (EL 32, EL 34, EL 35, EL 36 and EL 38). Conclusions Altogether the results provide new information regarding the network of events leading to grape ripening as well as highlight features that may be cultivar specific namely in what concerns the role of carbohydrates and growth regulators´ metabolism as well as epigenetic factors and signaling pathways. 4 time points in 2007 season. 3 time points in 2008 season. 3 biological replicates.
2011-09-29 | E-GEOD-28779 | biostudies-arrayexpress
Project description:In the production of seedless table grapes, it is conventional to use plant growth regulators including gibberellins. Little is known about the differences in aroma volatiles between seedless-treated grapes and nontreated (seeded) grapes. Therefore, in this study, the aroma volatile profiles of seedless-treated and nontreated ‘Shine Muscat’ grape berries during ripening were compared using gas chromatography-mass spectrometry. Measurements of volatiles during ripening showed 202 peaks in the seedless-treated and nontreated whole grape berries. According to two-way analysis of variance, the number of volatiles with differences between seedless-treated and nontreated berries and/or between ripening stages was 123, whereas those with no differences between treatments and between ripening stages was 79. Two-way hierarchical clustering analysis for the 123 volatiles showed that seedless-treated berries at the early ripening stages were separated from the other berries, and the seedless-treated and nontreated berries at the post-ripening stage were classified into the same cluster. At the early ripening stage, more lipoxygenase-pathway volatiles were produced in the seedless-treated berries than in the non-treated ones. Linalool compounds increased in both seedless-treated and nontreated berries with ripening. Gene expression profile comparisons using principal component analysis of RNA-sequencing data showed that the seedless-treated berries ripened earlier than the nontreated berries at the early ripening stage. The number of differentially expressed genes in the seedless-treated berries decreased during ripening. Using weighted gene co-expression network analyses, 12 modules and 24 modules were detected in berry skin and flesh, respectively. The correlation analysis revealed that 33 volatiles correlated with four modules in the skin and 50 volatiles correlated with nine modules in the flesh. Most of the volatiles correlated with these modules were those that showed significant differences between treatments and/or ripening stages by two-way analysis of variance. The differences in the aroma volatile profiles between seedless-treated and nontreated berries decreased as harvest was delayed, suggesting that delaying the harvest may make it possible to bring the aroma of seedless-treated ‘Shine Muscat’ berries closer to the original aroma of the seeded berries.
2024-08-23 | GSE247972 | GEO
Project description:Background Grapes (Vitis vinifera L.) are economically the most important fruit crop worldwide. However, the complexity of molecular and biochemical events that lead to the onset of ripening of nonclimacteric fruits is not fully understood which is further complicated in grapes due to seasonal and cultivar specific variantion. The Portuguese wine variety Trincadeira gives rise to high quality wines but presents extremely irregular berry ripening among seasons probably due to high susceptibility to abiotic and biotic stresses. Results Ripening of Trincadeira grapes was studied taking into account the transcriptional and metabolic profilings complemented with biochemical data. The mRNA expression profiles of four time points spanning developmental stages from pea size green berries, through veraison and mature berries (EL 32, EL 34, EL 35 and EL 36) and in two seasons (2007 and 2008) were compared using the Affymetrix GrapeGen® genome array containing 23096 probesets corresponding to 18726 unique sequences. Over 50% of these probesets were significantly differentially expressed (1.5 fold) between at least two developmental stages. A common set of modulated transcripts corresponding to 5862 unigenes indicates the activation of common pathways in between years despite the irregular development of Trincadeira grapes. These unigenes were assigned in the functional categories of “metabolism, development”, “cellular process”, “diverse functions”, “regulation overview”, “response to stimulus, stress”, “signaling”, “transport overview”, “xenoprotein, transposable element” and “unknown”. Metabolic profiling using 1H NMR spectroscopy associated to two-dimensional techniques showed the importance of metabolites related to oxidative stress response, amino acid and sugar metabolism as well as secondary metabolism in grape ripening. This information was integrated with transcriptional profiling obtained using genome array and qRT-PCR for five developmental stages (EL 32, EL 34, EL 35, EL 36 and EL 38). Conclusions Altogether the results provide new information regarding the network of events leading to grape ripening as well as highlight features that may be cultivar specific namely in what concerns the role of carbohydrates and growth regulators´ metabolism as well as epigenetic factors and signaling pathways.
2011-09-30 | GSE28779 | GEO
Project description:Grapes (Vitis species) are economically the most important fruit crop worldwide. However, the complexity of molecular and biochemical events that lead to the onset of ripening in berries as well as how aroma is developed are aspects not fully understood. In an attempt to identify the common mechanisms associated with the onset of ripening independently of the cultivar, grapes of Portuguese elite cultivars, Trincadeira, Aragonês, and Touriga Nacional, were studied. The mRNA expression profiles corresponding to veraison (EL35) and to mature berries (EL36) were compared. Across the three varieties, 9,8% (2255) probesets corresponding to 1915 unigenes were robustly differentially expressed at EL 36 compared to EL 35. Eleven functional categories were represented in this differential gene set: primary metabolism, “secondary metabolism”, cellular metabolism”, development”, “cellular process”, “diverse functions”, “regulation overview”, response to stimulus, stress”, “signaling”, “transport overview”, and “xenoprotein, transposable element” besides 32.24% genes of “unknown” function. Information on gene expression related to primary and secondary metabolism was verified by RT-qPCR analysis of selected candidate genes at four developmental stages (EL32, EL35, EL36 and EL 38). Gene expression data were integrated with metabolic profiling data from GC-EI-TOF/ MS and headspace GC-EI-MS platforms. Molecular and metabolic markers of grape ripening related to primary and secondary metabolism were established and revealed a substantial developmental reprogramming of cellular metabolism. Altogether the results provide valuable new information on the main metabolic events leading to grape ripening. Furthermore, we provide first hints about how the development of a cultivar specific aroma is controlled at the transcriptional level.
2012-10-30 | GSE35172 | GEO
Project description:Grapes (Vitis species) are economically the most important fruit crop worldwide. However, the complexity of molecular and biochemical events that lead to the onset of ripening in berries as well as how aroma is developed are aspects not fully understood. In an attempt to identify the common mechanisms associated with the onset of ripening independently of the cultivar, grapes of Portuguese elite cultivars, Trincadeira, AragonM-CM-*s, and Touriga Nacional, were studied. The mRNA expression profiles corresponding to veraison (EL35) and to mature berries (EL36) were compared. Across the three varieties, 9,8% (2255) probesets corresponding to 1915 unigenes were robustly differentially expressed at EL 36 compared to EL 35. Eleven functional categories were represented in this differential gene set: primary metabolism, M-bM-^@M-^\secondary metabolismM-bM-^@M-^], cellular metabolismM-bM-^@M-^], developmentM-bM-^@M-^], M-bM-^@M-^\cellular processM-bM-^@M-^], M-bM-^@M-^\diverse functionsM-bM-^@M-^], M-bM-^@M-^\regulation overviewM-bM-^@M-^], response to stimulus, stressM-bM-^@M-^], M-bM-^@M-^\signalingM-bM-^@M-^], M-bM-^@M-^\transport overviewM-bM-^@M-^], and M-bM-^@M-^\xenoprotein, transposable elementM-bM-^@M-^] besides 32.24% genes of M-bM-^@M-^\unknownM-bM-^@M-^] function. Information on gene expression related to primary and secondary metabolism was verified by RT-qPCR analysis of selected candidate genes at four developmental stages (EL32, EL35, EL36 and EL 38). Gene expression data were integrated with metabolic profiling data from GC-EI-TOF/ MS and headspace GC-EI-MS platforms. Molecular and metabolic markers of grape ripening related to primary and secondary metabolism were established and revealed a substantial developmental reprogramming of cellular metabolism. Altogether the results provide valuable new information on the main metabolic events leading to grape ripening. Furthermore, we provide first hints about how the development of a cultivar specific aroma is controlled at the transcriptional level. 2 time points in 2008 season. 3 biological replicates. 3 cultivars
2012-10-30 | E-GEOD-35172 | biostudies-arrayexpress
Project description:We report the application of next generation sequencing technology for analyzing the differentially expressed genes of grapes after treated with or without Y. lipolytica. After analyzing the differentially expressed gene, we selected some important genes related to the resistance of grapes to do RT-qPCR.
2019-04-26 | GSE130267 | GEO
Project description:Grapes (Vitis vinifera L.) are economically the most important fruit crop worldwide. However, the complexity of molecular and biochemical events that lead to ripening of nonclimacteric fruits is not fully understood. In particular the role of polyamines´ catabolism has been little explored. Ripening of Trincadeira grapes submitted to mock and guazatine treatments, a potent inhibitor of polyamine oxidase activity, was studied taking into account the transcriptional and metabolic profilings complemented with biochemical data. The mRNA expression profiles of one time point (EL 38) corresponding to harvest stage was compared between mock and guazatine treatments using the Affymetrix GrapeGen® genome array containing 23096 probesets corresponding to 18711 unique sequences. A total of 2113 probesets (1877 unigenes) were significantly differentially expressed (1.5 fold) between these samples. These unigenes were assigned to the functional categories of “metabolism”, “regulation overview”, “signaling”, “cellular process”, “transport overview”, “response to stimulus, stress”, “diverse/miscellaneous functions”, “xenoprotein, transposable element”, “development” and “unknown”. Quantitative RT-PCR validated microarrays results being carried out for seven selected genes and three developmental stages (EL 35, EL 36 and EL 38). Functional enrichment analysis revealed that genes involved in amino acid, carbohydrate and water transport were more up-regulated in mock treated samples which may suggest that the strong dehydrated phenotype obtained in guazatine treated samples may be due to impaired transport mechanisms. In addition, genes involved in terpenes´ metabolism were differentially expressed between guazatine and mock treated samples. Altogether, the results support an important role of polyamine catabolism in normal grape ripening namely in aroma development and cell expansion.
2013-09-30 | GSE44823 | GEO
Project description:Grapes (Vitis vinifera L.) are economically the most important fruit crop worldwide. However, the complexity of molecular and biochemical events that lead to ripening of nonclimacteric fruits is not fully understood. In particular the role of polyaminesM-BM-4 catabolism has been little explored. Ripening of Trincadeira grapes submitted to mock and guazatine treatments, a potent inhibitor of polyamine oxidase activity, was studied taking into account the transcriptional and metabolic profilings complemented with biochemical data. The mRNA expression profiles of one time point (EL 38) corresponding to harvest stage was compared between mock and guazatine treatments using the Affymetrix GrapeGenM-BM-. genome array containing 23096 probesets corresponding to 18711 unique sequences. A total of 2113 probesets (1877 unigenes) were significantly differentially expressed (1.5 fold) between these samples. These unigenes were assigned to the functional categories of M-bM-^@M-^\metabolismM-bM-^@M-^], M-bM-^@M-^\regulation overviewM-bM-^@M-^], M-bM-^@M-^\signalingM-bM-^@M-^], M-bM-^@M-^\cellular processM-bM-^@M-^], M-bM-^@M-^\transport overviewM-bM-^@M-^], M-bM-^@M-^\response to stimulus, stressM-bM-^@M-^], M-bM-^@M-^\diverse/miscellaneous functionsM-bM-^@M-^], M-bM-^@M-^\xenoprotein, transposable elementM-bM-^@M-^], M-bM-^@M-^\developmentM-bM-^@M-^] and M-bM-^@M-^\unknownM-bM-^@M-^]. Quantitative RT-PCR validated microarrays results being carried out for seven selected genes and three developmental stages (EL 35, EL 36 and EL 38). Functional enrichment analysis revealed that genes involved in amino acid, carbohydrate and water transport were more up-regulated in mock treated samples which may suggest that the strong dehydrated phenotype obtained in guazatine treated samples may be due to impaired transport mechanisms. In addition, genes involved in terpenesM-BM-4 metabolism were differentially expressed between guazatine and mock treated samples. Altogether, the results support an important role of polyamine catabolism in normal grape ripening namely in aroma development and cell expansion. 1 time point in 2010 season at EL 38. 3 biological replicates. 2 treatments
2013-09-30 | E-GEOD-44823 | biostudies-arrayexpress