GEO DataSets

(Submitter supplied) Differences in root transcriptional profile between two grapevine rootstocks (1103P and SO4) showing different tolerance to Mg deficiency were analyzed after 4 and 14 days of growth with (+Mg) or without (-Mg).

Organism:

Vitis cinerea var. helleri x Vitis rupestris; Vitis vinifera; Vitis cinerea var. helleri x Vitis riparia

Type:

Expression profiling by array

Platform:

GPL13936

24 Samples

Download data: PAIR, TXT

(Submitter supplied) The grape color locus 2 affects anthocyanin pigmentation of vegetative organs.

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

15 Samples

Download data: PAIR

(Submitter supplied) Anthocyanins are flavonoid compounds responsible for red/purple colours in the leaves, fruit and flowers of many plant species. They are produced through a multistep pathway which is controlled by MYB transcription factors. VvMYBA1 and VvMYBA2 activate anthocyanin biosynthesis in grapevine (Vitis vinifera) and are non-functional in white grapevine cultivars. In this study, transgenic grapevines with altered VvMYBA gene expression were developed, and transcript analysis was carried out on berries using a microarray technique. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

24 Samples

Download data: PAIR

(Submitter supplied) Mature grapevine berries at the harvesting stage (MB) are very susceptible to the gray mold fungus Botrytis cinerea while veraison berries (VB) are not. We conducted simultaneous microscopic and transcriptomic analyses of the pathogen and the host to investigate the infectious process developed by B. cinerea on MB versus VB, and the plant defense mechanisms deployed to stop the fungus development. On the pathogen side, our genome-wide transcriptomic data revealed that B. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

18 Samples

Download data: PAIR

(Submitter supplied) A set of grapevine R2R3 MYB repressors negatively regulate the expression of genes involved in different branches of the phenylpropanoid pathway

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

6 Samples

Download data: PAIR

(Submitter supplied) Investigation of gene expression differences between three tissues of developmentally different berry classes before, at the onset of ripening, and at maturity The berry classes analyzed in these studies were at prevéraison stage, at midvéraison and 5 week postmidvéraison.

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

63 Samples

Download data: PAIR, TXT

(Submitter supplied) Background: Phenotypic plasticity refers to the range of phenotypes a single genotype can express as a function of its environment. These phenotypic variations are attributable to the effect of the environment on the expression and function of genes influencing plastic traits. We investigated phenotypic plasticity in grapevine by comparing the berry transcriptome in a single clone of the vegetatively-propagated common grapevine species Vitis vinifera cultivar Corvina through three consecutive growth years cultivated in 11 different vineyards in the Verona area of Italy. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

171 Samples

Download data: PAIR

(Submitter supplied) The purpose of this study was to quantify the effects of basal leaf removal applied in Sangiovese cultivar at two different phonological stages, pre-bloom and veraison, on berry composition. As very few papers were published about the regulation of gene expression induced by vineyard management techniques, we report the first global transcriptomic analysis (integrated with agronomic and biochemical data) aiming to determine the molecular mechanisms that control Sangiovese berry composition. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

24 Samples

Download data: PAIR

(Submitter supplied) Berries were sample at three developmental stages (green, veraison and ripe) and flash frozen in the field in liquid nitrogen. The frozen tissue was subsequently ground in liquid nitrogen and stored at 80°C. At least three independent berry samples were collected (with n≥50 berries per sample) at three time points: at pre-véraison/green stage (Eichhorn-Lorenz (E-L) system stage 31), at véraison (E-L stage 34) and at ripe/harvest stage (E-L stage 38)

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

7 Samples

Download data: PAIR

(Submitter supplied) Plant response to insect feeding appears to be highly specific with regard to the organisms in the system. Here, we report on the interaction between grapevine Vitis vinifera plants and a phloem-feeding insect pest, the vine mealybug Planococcus ficus. Plants were exposed to P. ficus for periods of 6 hours and 96 hours, after which they were analysed for gene expression levels using microarrays and quantitative real-time PCR (qPCR). more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

8 Samples

Download data: CALLS, PAIR

(Submitter supplied) Grapevine rupestris stem pitting-associated virus (GRSPaV) is a widespread virus affecting Vitis spp. Although it has established a compatible viral interaction in Vitis vinifera L. without the development of phenotypic alterations, it can occur as distinct variants that show different symptoms in diverse Vitis species. We investigated the changes induced by GRSPaV in V. vinifera cv Bosco, an Italian white grape variety, by combining agronomic, physiological, and molecular approaches, in order to provide comprehensive information about the global effects of GRSPaV. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

18 Samples

Download data: PAIR

(Submitter supplied) The first genome-wide transcriptomic atlas of grapevine (Vitis vinifera) is based on 54 diverse samples expressing ~93% of predicted grapevine genes. Pollen and senescent leaves have unique transcriptomes but microarray analysis grouped all other samples into vegetative/green or mature/woody categories based on maturity rather than organ identity. This fundamental transcriptome reprograming during maturation was highlighted by three distinct statistical approaches supported by gene coexpression analysis. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

162 Samples

Download data: PAIR

(Submitter supplied) Background: Cluster thinning is an agronomic practice in which a proportion of berry clusters are removed from the vine to increase the source/sink ratio and improve the quality of the remaining berries. Until now no transcriptomic data have been reported describing the mechanisms that underlie the agronomic and biochemical effects of thinning. Results: We profiled the transcriptome of Vitis vinifera cv. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

18 Samples

Download data: PAIR