GEO DataSets

(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) 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) To obtain insights about the roles of VvMYB5a and VvMYB5b, here we perform complementation analyses using petunia regulatory mutants impaired in pigment accumulation in flower epidermis, proven to be a valid tool for gene functional studies.

Organism:

Petunia x hybrida; Petunia axillaris

Type:

Expression profiling by array

Platform:

GPL13298

12 Samples

Download data: TXT

(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) This SuperSeries is composed of the SubSeries listed below.

Organism:

Arabidopsis thaliana; Vitis vinifera

Type:

Expression profiling by array; Expression profiling by high throughput sequencing

Platforms:

GPL14639 GPL13970

15 Samples

Download data: CALLS, PAIR, TXT

(Submitter supplied) SuperSAGE is a method of digital gene expression profiling that allows isolation of 26bp tag fragments from expressed transcripts. Because its tag size is larger than that of conventional SAGE, SuperSAGE allowed a secure tag-to-gene annotation using BLAST search against grape genome databases.Transcript profiles in nine samples of grape berry tissues under different light conditions were obtained by SuperSAGE analysis and used for screening the genes which have co-ordinated transcript profiles with the change in the flavonoid composition in the samples analyzed. more...

Organism:

Vitis vinifera

Type:

Expression profiling by high throughput sequencing

Platform:

GPL14639

9 Samples

Download data: TXT

(Submitter supplied) Constitutive expression of VvMYBPAR in Arabidopsis was found to accumulate proanthocyanidins when the plants were grown on sucrose-supplemented media to induce anthocyanins. To identify the putative targets of VvMYBPAR, the transcriptome analysis of the transgenic lines which highly express VvMYBPAR was carried out using NimbleGen microarray.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL13970

6 Samples

Download data: CALLS, PAIR

(Submitter supplied) We report the berry pericarp transcriptomic profiles of 5 white Vitis vinifera varieties: Vermentino, Garganega, Glera, Moscato bianco and Passerina at 4 growth stages: pea-sized berries (Bbch 75) at almost 20 days after flowering, berries beginning to touch (Bbch77) just prior véraison, the softening of the berries (Bbch 85) at the end of véraison and berries ripe for harvest (Bbch 89)

Organism:

Vitis vinifera

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19359

60 Samples

Download data: TXT

(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) Anthocyanins and flavonols are natural compounds that accumulate preferentially in grapevine flowers and fruits. They are among the most abundant flavonoids and play a very important role in grape and wine quality. In particular, they confer and stabilize colour and contribute to other organoleptic characteristics of the final product. Their complex profile in terms of concentration and relative abundance varies among cultivars and makes wine typicity. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL11004

24 Samples

Download data: CEL

(Submitter supplied) MicroRNAs are a class of endogeneously expressed non-coding small, ~21nt RNAs involved in the negative regulation of gene expression. In plants, miRNAs are known to play a critical role in developmental and metabolic pathways, as they predominantly target transcription factors. Studies in Arabidopsis and apple have shown that few microRNAs and small interfering (si) RNAs target MYB transcription factors, which are key regulators of phenylpropanoid pathway. more...

Organism:

Vitis vinifera

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL18580

4 Samples

Download data: TXT

(Submitter supplied) MicroRNAs are a class of endogeneously expressed non-coding small, ~21nt RNAs involved in the negative regulation of gene expression. In plants, miRNAs are known to play a critical role in developmental and metabolic pathways, as they predominantly target transcription factors. Studies in Arabidopsis and apple have shown that few microRNAs and small interfering (si) RNAs target MYB transcription factors, which are key regulators of phenylpropanoid pathway. more...

Organism:

Vitis vinifera

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL24368

12 Samples

Download data: TXT

(Submitter supplied) MicroRNAs are a class of endogeneously expressed non-coding small, ~21nt RNAs involved in the negative regulation of gene expression. In plants, miRNAs are known to play a critical role in developmental and metabolic pathways, as they predominantly target transcription factors. Studies in Arabidopsis and apple have shown that few microRNAs and small interfering (si) RNAs target MYB transcription factors, which are key regulators of phenylpropanoid pathway. more...

Organism:

Vitis vinifera

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24368

12 Samples

Download data: TXT

(Submitter supplied) Light conditions significantly influence grape berry ripening and the accumulation of phenolic compounds, but the underlying molecular basis remains partially understood. Here, we applied integrated transcriptomics and pathway-level metabolomics analyses to investigate the effect of cluster bagging during various developmental stages on phenolic metabolism in Cabernet Sauvignon grapes. Bagging treatments had limited effects on berry quality attributes at harvest and did not consistently affect phenolic acid biosynthesis between seasons. more...

Organism:

Vitis vinifera

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18740

42 Samples

Download data: XLSX

(Submitter supplied) Somatic variants spontaneously appear during the vegetative multiplication of woody crops. The new white-berried grapevine cultivar Tempranillo Blanco (TB) originally appeared as a bud sport of the black skin-berried Tempranillo Tinto (TT) cultivar. To understand the origin of this variation, TT and TB genomes were sequenced. Structural variation and genetic segregation analyses uncovered that complex chromosome rearrangements consistent with chromothripsis, a catastrophic phenomenon recently described in human cancer, generated the variant genome of TB and the deletion of the color locus functional allele. more...

Organism:

Vitis vinifera

Type:

Genome variation profiling by array

Platform:

GPL11004

12 Samples

Download data: CEL