GEO DataSets

(Submitter supplied) We performed that comprehensive identification of genes responsible for stress tolerance by analyzing the whole-genome expression profiles of poplar (Populus alba × P. glandulosa) leaves exposed to drought and salt stresses. Examination at the molecular level how this tree species responds to drought and salt stresses by regulating the expression of genes involved in signal transduction, transcriptional regulation, and stress responses.

Organism:

Populus alba x Populus glandulosa

Type:

Expression profiling by array

Platform:

GPL19070

6 Samples

Download data: TXT

(Submitter supplied) Drought is one of the most important environmental fluctuations affecting tree growth and survival. Therefore, understanding of physiological and transcriptomic responses of trees to this stress factor will make important contributions to forest health and productivity. Here, we report comparative physiological and microarray based transcriptome analysis between drought resistant (N.62.191) and drought-sensitive (N.03.368.A) black poplar genotypes under well-watered (WWP), moderate drought (MD), severe drought (SD) and post drought re-watering (PDR) conditions. more...

Organism:

Populus sp.; Populus nigra

Type:

Expression profiling by array

Platform:

GPL4359

24 Samples

Download data: CEL

(Submitter supplied) affy_genomic_poplar - affy_genomic_poplar - The project aims to identify genes of interest for water deficit acclimation in poplar. We look for genes and gene expression networks related to drought stress in two hybrid cultivars, differing in their drought tolerance in field. Affymetrix poplar genome array was designed on several Populus species. In order to deal with comparative approaches, we checked the convenience of the array by hybridizing genomic DNA of the two hybrid cultivars (Populus deltoides × Populus nigra, namely ‘cv Carpaccio’ and ‘cv Soligo’). more...

Organism:

Populus sp.; Populus x canadensis

Type:

Genome variation profiling by array

Platform:

GPL4359

4 Samples

Download data: CEL

(Submitter supplied) affy_popsec_nancy_leaves_poplar - affy_popsec_nancy_leaves2007_poplar - This project aims to identify genes of interest for water deficit acclimation and/or adaptation in a tree species: poplar. We look for genes and gene expression networks related to drought stress. We intend to analyse the transcriptome in mature leaves, in two genotypes, Carpaccio and Soligo, at various stages and intensities of stress. more...

Organism:

Populus x canadensis; Populus sp.

Type:

Expression profiling by array

Platform:

GPL4359

16 Samples

Download data: CEL

(Submitter supplied) affy_popsec_nancy_leaves_poplar - affy_popsec_nancy_leaves2008_poplar - This project aims to identify genes of interest for water deficit acclimation and/or adaptation in a tree species: poplar. We look for genes and gene expression networks related to drought stress. We intend to analyse the transcriptome in mature leaves, in two genotypes, Carpaccio and Soligo, at various stages and intensities of stress. more...

Organism:

Populus sp.; Populus x canadensis

Type:

Expression profiling by array

Platform:

GPL4359

8 Samples

Download data: CEL

(Submitter supplied) affy_popsec_nancy_roots_poplar - This project aims to identify genes of interest for water deficit acclimation and/or adaptation in a tree species: poplar. We look for genes and gene expression networks related to drought stress. We intend to analyse the transcriptome in root apices, in two genotypes, Carpaccio and Soligo, at various stages and intensities of stress. Root apex is the location of root elongation and these analyses intend to identify genes involved in the control of cell expansion and thus of root elongation. more...

Organism:

Populus sp.; Populus x canadensis

Type:

Expression profiling by array

Platform:

GPL4359

16 Samples

Download data: CEL

(Submitter supplied) We present an efficient method to genome-wide discover new and drought stress responsive miRNAs in P. euphratica. High throughput sequencing of P. euphratica leaves found 197 conserved miRNAs between P. euphratica and Populus trichocarpa. Meanwhile, 189 new miRNAs which belonged to 120 families were identified, a large increasing to the number of P. euphratica miRNAs. Target prediction and degradome sequencing verification of 22 new and 21 conserved miRNA targets showed these targets were involved in multiple biological processes, including transcription regulation and response to stimulus. more...

Organism:

Populus euphratica

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11262

2 Samples

Download data: FASTA, TXT

(Submitter supplied) Sunflower is an important source of vegetable oil worlwide. A differential organ-specific sunflower ESTs was previously generated by a subtractive hybridization method, including a considerable number of abiotic stress associated sequences. The objective of this work is to analyze the sunflower gene expression of previously identified candidate genes under a comprehensive microarray analysis of the leaf transcriptoma under cold and salinity stresses, considering the impacts of these abiotic stresses on sunflower yield in many productive areas. more...

Organism:

Helianthus annuus

Type:

Expression profiling by array

Platform:

GPL4366

18 Samples

Download data

(Submitter supplied) As exposure to episodic drought can impinge significantly on forest health and the establishment of productive tree plantations, there is great interest in understanding the mechanisms of drought response in trees. The ecologically dominant and economically important genus Populus, with its sequenced genome, provides an ideal opportunity to examine transcriptome level changes in trees in response to a drought stimulus. more...

Organism:

Populus maximowiczii x Populus nigra; Populus x canadensis; Populus sp.

Type:

Expression profiling by array

Platform:

GPL4359

48 Samples

Download data: CEL

(Submitter supplied) Grapevine rootstock 1616C shoots were sterilized and cultured on Murashige & Skoog (MS) medium containing 2% sucrose (w/v). Plantlets were grown in a growth chamber with a 16-h light/8-h dark cycle for 10 weeks at 25 °C. Plantlets with 4–5 leaves were chosen for use in stress treatments. Experiments were conducted with treatment groups: The control (C, without any chemical treatment), TM (treated with 5 μg mL-1 tunicamycin (TM)) and salt (treated with 400 mM NaCl). more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL1320

24 Samples

Download data: CEL

(Submitter supplied) Poplars are known to be highly tolerant species to boron toxicity and accumulation. However, genes and molecular networks responsible in boron toxicity tolerance have not been investigated yet. Therefore, we performed a pot experiment with 20 black poplar clones collected from the vicinity of boron mines and polluted areas to investigate its potential role in phytoremediation and to select the most boron toxicity tolerant genotype. more...

Organism:

Populus sp.; Populus nigra

Type:

Expression profiling by array

Platform:

GPL4359

8 Samples

Download data: CEL

(Submitter supplied) Plant material for EST library construction: The Ein Avdat valley is located in the Negev desert in Israel at 450 m above sea level and a latitude of 30° 49' 30" N, and a longitude of 34° 46' 0" E. The average rainfall is 100 to 200 mm per year with most of the rain falling during winter time. Adult heart shaped leaves were collected from trees in areas A, B, and C for the cDNA library during the summer seasons of 2000 to 2001. more...

Organism:

Populus euphratica

2 Series

6 Samples

Download data

(Submitter supplied) We used whole-genome microarrays to identify differentially expressed genes in leaves of GA-deficient (35S::PcGA2ox) and/or GA-insensitive (35S::rgl1) transgenics as compared to WT poplar (717-1B4 genotype). Our work suggests that the molecular machinery that reduces gibberellins (GAs) concentration and signaling is a major route for restraining growth under both immediate and imminent adverse conditions. more...

Organism:

Populus tremula x Populus alba; Populus sp.

Type:

Expression profiling by array

Platform:

GPL4359

6 Samples

Download data: CEL

(Submitter supplied) Populus euphratica is a natural population grown in semirid areas. The molecular response of the poplar to drought maintain to be elucided, especially at global genome level. We used Affymetrix poplar genome genechip microarrays to analyze the full transcript expression underlying different drought intensities and identified significantly differently expressed genes during this process.

Organism:

Populus sp.; Populus euphratica

Type:

Expression profiling by array

Platform:

GPL4359

10 Samples

Download data: CEL

(Submitter supplied) We take the one year old plant for chilling stress (4°C, 10h) and controls.Use the Affymetrix poplar gene chip to decrypt the gene functions and mechanisms in Populus simonii leaves. We used microarrays to detail the global programme of gene expression during chilling stress (4°C, 10h).

Organism:

Populus simonii; Populus sp.

Type:

Expression profiling by array

Platform:

GPL4359

4 Samples

Download data: CEL, CHP

(Submitter supplied) We take the one year old plant for 100 mMol/L NaCl treatments 24 hours and controls. Use the Affymetrix poplar gene chip to decrypt the gene functions and mechanisms in Populus simonii leaves. We used microarrays to detail the global programme of gene expression during NaCl treatments.

Organism:

Populus simonii; Populus sp.

Type:

Expression profiling by array

Platform:

GPL4359

6 Samples

Download data: CEL, CHP

(Submitter supplied) We take one-year-old plants for high-temperature treatments and controls. We used the Affymetrix Poplar GeneChip to decrypt the gene functions and mechanisms in Populus simonii leaves.

Organism:

Populus sp.; Populus simonii

Type:

Expression profiling by array

Platform:

GPL4359

4 Samples

Download data: CEL, CHP

(Submitter supplied) We take one-year-old plants for short-term water deficit treatments and controls. We use the Affymetrix Poplar GeneChip to decrypt the gene functions and mechanisms in Populus simonii leaves and detail the global program of gene expression during water deficit treatments.

Organism:

Populus sp.; Populus simonii

Type:

Expression profiling by array

Platform:

GPL4359

4 Samples

Download data: CEL, CHP

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

Organism:

Populus sp.; Populus tremula x Populus alba

Type:

Expression profiling by array

Platform:

GPL4359

18 Samples

Download data: CEL

(Submitter supplied) To investigate the function of poplar WRKY23, we generated PtWRKY23-overexpressing and -underexpressing (RNAi) plants. Transgenic plants were inoculated with Melampsora rust or mock-inoculated for assessment of rust-resistance and for gene expression profiling using the poplar Affymetrix GeneChip® to study the consequences of PtWRKY23 overexpression and underexpression. Transcriptome analysis of PtWRKY23 overexpressors revealed a significant overlap with the Melampsora-infection response. more...

Organism:

Populus sp.; Populus tremula x Populus alba

Type:

Expression profiling by array

Platform:

GPL4359

6 Samples

Download data: CEL