GEO DataSets

(Submitter supplied) The postharvest dehydration of grape berries allows theaccumulation of sugars and other solutesand promotes the synthesis of aroma compounds unique to high-quality raisin wines such as thepassito wines made in Italy. These dynamic changes are dependent on environmental parameters such as temperature and relative humidity,as well asendogenous factors such as berry morphology and genotype, but the contribution of each variable isnot well understood.Here wecompared berries subjected to natural or accelerated dehydration, the latterdriven by forced airflow.We followed the evolution of transcript andmetaboliteprofiles and found that accelerated dehydration clearly dampened the natural transcriptomic and metabolomic programs of postharvest berries. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

27 Samples

Download data: PAIR

(Submitter supplied) Auxin treatment of grape (Vitis vinifera L.) berries delays ripening by inducing changes in gene expression and cell wall metabolism and could combat some deleterious climate change effects. Auxins are inhibitors of grape berry ripening and their application may be useful to delay harvest to counter effects of climate change. However, little is known about how this delay occurs. The expression of 1892 genes was significantly changed compared to the control during a 48 h time-course where the auxin 1-naphthaleneacetic acid (NAA) was applied to pre-veraison grape berries. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

30 Samples

Download data: PAIR

(Submitter supplied) The accumulation of secondary metabolites and the regulation of tissue acidity contribute to important traits like color, astringency and acidity of grape berry which are essential to the value of the final product, the wine. Moreover, they influence the plant performance in response to the environment and to parasites and herbivores. In several plant species highly conserved WD-MYB-bHLH-WRKY (WMBW) transcriptional complexes determine color and acidity in epidermal cells. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

21 Samples

Download data: PAIR

(Submitter supplied) Seedlessness is greatly prized by consumers of fresh grapes. While stenospermocarpy determined by the Seed Development Inhibitor (SDI) locus is the usual source of seedlessness in commercial grapevine cultivars, the sdi mutation underlying this locus remained unknown and we undertook an integrative approach to identify it. Quantitative genetics and fine mapping studies in two Crimson Seedless (CS)-derived F1 populations confirmed the major effect of the SDI locus and delimited the sdi mutation to a region of 323 kb on chromosome 18. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

9 Samples

Download data: PAIR

(Submitter supplied) Changes in the performance of genotypes in different environments are defined as genotype 3 environment (G3E) interactions. In grapevine (Vitis vinifera), complex interactions between different genotypes and climate, soil and farming practices yield unique berry qualities. However, the molecular basis of this phenomenon remains unclear. To dissect the basis of grapevine G3E interactions we characterized berry transcriptome plasticity, the genome methylation landscape and within-genotype allelic diversity in two genotypes cultivated in three different environments over two vintages. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

144 Samples

Download data: PAIR

(Submitter supplied) Among environmental factors, temperature is the one that poses serious threats to viticulture in the present and future scenarios of global climate change. In this work, we evaluated the effects on berry ripening of two thermal regimes, imposed from veraison to harvest. Potted vines were grown in two air-conditioned greenhouses with High Temperature (HT) and Low Temperature (LT) regimes characterized by 26 and 21°C as average and 42 and 35°C as maximum air daily temperature, respectively. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

27 Samples

Download data: PAIR

(Submitter supplied) Leaf removal is a grapevine canopy management technique widely used to modify the source-sink balance and/or microclimate around berry clusters to optimize fruit composition. In general, the removal of basal leaves before flowering reduces fruit set, hence achieving looser clusters, and improves grape composition since yield is generally curtailed more than proportionally to leaf area itself. Albeit responses to this practice seem quite consistent, overall vine performance is affected by genotype, environmental conditions, and severity of treatment. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

48 Samples

Download data: PAIR

(Submitter supplied) Studying the effect of varying durations (1, 7 and 14 days) of locally applied heat stress on grape berries at three developmental stages (middle green, veraison and middle ripening). Among various environmental factors, temperature is a major regulator affecting plant growth, development and fruit composition. Reproductive development of grapevine and berry composition, are both highly influenced by temperature. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

54 Samples

Download data: XYS

(Submitter supplied) The molecular events that characterize postripening grapevine berries have rarely been investigated and are poorly defined. In particular, a detailed definition of changes occurring during the postharvest dehydration, a process undertaken to make some particularly special wine styles, would be of great interest for both winemakers and plant biologists. We report an exhaustive survey of transcriptomic and metabolomic responses in berries representing six grapevine genotypes subjected to postharvest dehydration under identical controlled conditions. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

87 Samples

Download data: PAIR

(Submitter supplied) Grapevine (Vitis vinifera L.) is an economically important crop with a wide geographical distribution, reflecting its ability to grow successfully in a range of climates. However, many vineyards are located in regions with seasonal drought, and these are often predicted to be global climate change hotspots. Climate change affects the entire physiology of grapevine, with strong effects on yield, wine quality and typicity, making it difficult to produce berries of optimal enological quality and consistent stability over the forthcoming decades. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

84 Samples

Download data: PAIR

(Submitter supplied) Grapevine (Vitis vinifera L) is considered one of the most environmentally sensitive crops and is characterized by broad phenotypic plasticity, offering important advantages such as the large range of different wines that can be produced from the same cultivar, and the adaptation of existing cultivars to diverse growing regions. The uniqueness of berry quality traits reflects complex interactions between the grapevine plant and the combination of natural factors and human cultural practices, defined as terroir, which leads to the expression of wine typicity. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

48 Samples

Download data: PAIR

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below. The interplay between environmental and genetic factors conditions the fruit ripening program in plants. Transcriptome analysis of grapevine fruits can help understanding these interactions to consciously cope with conditions leading to detrimental effects for viticultural purposes. However, considering the grapevine characteristic ripening asynchrony, which can be intensified by contrasting conditions, accurate grape sampling may be essential for molecular comparisons. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

43 Samples

Download data: PAIR

(Submitter supplied) The interplay between environmental and genetic factors conditions the fruit ripening program in plants. Transcriptome analysis of grapevine fruits can help understanding these interactions to consciously cope with conditions leading to detrimental effects for viticultural purposes. However, considering the grapevine characteristic ripening asynchrony, which can be intensified by contrasting conditions, accurate grape sampling may be essential for molecular comparisons. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

11 Samples

Download data: PAIR

(Submitter supplied) The interplay between environmental and genetic factors conditions the fruit ripening program in plants. Transcriptome analysis of grapevine fruits can help understanding these interactions to consciously cope with conditions leading to detrimental effects for viticultural purposes. However, considering the grapevine characteristic ripening asynchrony, which can be intensified by contrasting conditions, accurate grape sampling may be essential for molecular comparisons. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

32 Samples

Download data: PAIR

(Submitter supplied) Background: Grapevine is a major food crop that is affected by global climate change. Consistent with field studies, dehydration assays of grapevine leaves can reveal valuable information of the plant’s response at physiological, transcript, and protein levels. There are well-known differences in grapevine rootstocks responses to dehydration. We used time-series transcriptomic approaches combined with network analyses to elucidate and identify important physiological processes and network hubs that respond to dehydration in three different grapevine species differing in their drought tolerance. more...

Organism:

Vitis vinifera; Vitis x champinii; Vitis riparia

Type:

Expression profiling by array

Platform:

GPL17894

30 Samples

Download data: PAIR

(Submitter supplied) Background: Abscisic acid (ABA) regulates various developmental processes and stress responses over both short (i.e. hours or days) and longer (i.e. months or seasons) time frames. To elucidate the transcriptional regulation of early responses of grapevine (Vitis vinifera) responding to ABA, different organs of grape (berries, shoot tips, leaves, roots and cell cultures) were treated with 10 μM (S)-(+)-ABA for 2 h. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

10 Samples

Download data: PAIR, TXT, XYS

(Submitter supplied) Several systemic diseases affect Vitis vinifera worldwide with important consequent management costs. Phytoplasma and viruses represent the most detrimental pathogens inducing symptoms and metabolic alterations that modify quantitatively the crop production. In the aim to investigate the plant/pathogen interactions, different grapevine samples, naturally affected (in mixed or single infections) by Stolbur phytoplasma (agent of Bois Noir disease) and viruses, in comparison to healthy and recovered controls, to identify the plant response to systemic pathogen infection. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

30 Samples

Download data

(Submitter supplied) Background: Grape cultivars and wines are distinguishable by their color, flavor and aroma profiles. Omic analyses (transcripts, proteins and metabolites) are powerful tools for assessing biochemical differences in biological systems. Results: Berry skins of red- (Cabernet Sauvignon, Merlot, Pinot Noir) and white-skinned (Chardonnay, Semillon) wine grapes were harvested near optimum maturity from the same experimental vineyard and ˚Brix-to-titratable acidity ratio. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

50 Samples

Download data: PAIR, TXT

(Submitter supplied) Seedlessness is a highly relevant trait in grapevine berries that are intended for fresh consumption or raisin production. Corinto Bianco (CB) is a parthenocarpic somatic variant of the seeded cultivar Pedro Ximenes (PX). Both variants were compared to understand the basis of this parthenocarpic phenotype. CB berries ripened normally although their size was six times smaller than in PX. Macrogametogenesis was aborted in CB, which was also pollen sterile. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

6 Samples

Download data: PAIR

(Submitter supplied) Grapevine is a perennial crop often cultivated by grafting a scion cultivar on a suitable rootstock. Rootstocks influence scions, particularly with regard to water uptake and vigor. Therefore, one of the possibilities to adapt viticulture to the extended drought stress periods is to select rootstocks conferring increased tolerance to drought. However, the molecular mechanisms associated with the ability of rootstock/scion combination to influence grape berry metabolism under drought stress are still poorly understood. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL17894

48 Samples

Download data: PAIR