GEO DataSets

(Submitter supplied) Plants are sessile organisms and therefore must sense and respond to changes of their surrounding conditions such as ambient temperature, which vary diurnally and seasonally. It is not yet clear how plants sense temperature and integrate this information into their development. We have previously shown that H2A.Z-nucleosomes are evicted in response to warmer temperatures. It is not clear however, whether the link between transcriptional responsiveness and changes in H2A.Z binding in context of temperature shifts is a global trend that can be seen throughout the genome, or the phenomenon is specific to a specialised set of temperature-responsive genes. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL19580 GPL13222

65 Samples

Download data: TXT

(Submitter supplied) Plants are sessile organisms and therefore must sense and respond to changes of their surrounding conditions such as ambient temperature, which vary diurnally and seasonally. It is not yet clear how plants sense temperature and integrate this information into their development. We have previously shown that H2A.Z-nucleosomes are evicted in response to warmer temperatures. It is not clear however, whether the link between transcriptional responsiveness and changes in H2A.Z binding in context of temperature shifts is a global trend that can be seen throughout the genome, or the phenomenon is specific to a specialised set of temperature-responsive genes. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17311

2 Samples

Download data: TXT

(Submitter supplied) Plants are sessile organisms and therefore must sense and respond to changes of their surrounding conditions such as ambient temperature, which vary diurnally and seasonally. It is not yet clear how plants sense temperature and integrate this information into their development. We have previously shown that H2A.Z-nucleosomes are evicted in response to warmer temperatures. It is not clear however, whether the link between transcriptional responsiveness and changes in H2A.Z binding in context of temperature shifts is a global trend that can be seen throughout the genome, or the phenomenon is specific to a specialised set of temperature-responsive genes. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19580

14 Samples

Download data: TXT

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

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL19580 GPL13222 GPL17311

108 Samples

Download data: TXT

(Submitter supplied) Plants are sessile organisms and therefore must sense and respond to changes of their surrounding conditions such as ambient temperature, which vary diurnally and seasonally. It is not yet clear how plants sense temperature and integrate this information into their development. We have previously shown that H2A.Z-nucleosomes are evicted in response to warmer temperatures. It is not clear however, whether the link between transcriptional responsiveness and changes in H2A.Z binding in context of temperature shifts is a global trend that can be seen throughout the genome, or the phenomenon is specific to a specialised set of temperature-responsive genes. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL13222 GPL19580

27 Samples

Download data: TXT

(Submitter supplied) Plants adapt to changes in their environment by regulating transcription and chromatin organization. The histone H2A variant H2A.Z and the SWI2/SNF2 ATPase BRAHMA have overlapping roles in positively and negatively regulating environmentally responsive genes in Arabidopsis, but the extent of this overlap was uncharacterized. Both have been associated with various changes in nucleosome positioning and stability in different contexts, but their specific roles in transcriptional regulation and chromatin organization need further characterization. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing; Expression profiling by high throughput sequencing; Genome variation profiling by high throughput sequencing

Platforms:

GPL13222 GPL19580

33 Samples

Download data: BED, BW, TXT, XLS

(Submitter supplied) We isolated mutants in Arabidopsis with enhanced ambient temperature response. Microarray analysis was performed to understand the extent to which ambient temperature transcriptome is perturbed in the mutants in comparison with the WT at non inductive 12 ºC and after shift to inductive 27 ºC for 2 h and 24 h. We performed global transcript profiling to understand the regulation of of gene expression underlying ambient temperature response.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

18 Samples

Download data: CEL

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

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL26208 GPL23157

32 Samples

Download data

(Submitter supplied) Global warming imposes a major threat to plant growth and crop production. In some plants including Arabidopsis thaliana, elevated temperatures induce a series of morphological and developmental adjustments, termed thermomorphogenesis to facilitate plant cooling under high-temperature conditions. Plant thermal response is suppressed by histone variant H2A.Z. At warm temperatures, H2A.Z is evicted from nucleosomes at thermo-responsive genes, resulting in their activation. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL23157

8 Samples

Download data: BW

(Submitter supplied) Global warming imposes a major threat to plant growth and crop production. In some plants including Arabidopsis thaliana, elevated temperatures induce a series of morphological and developmental adjustments, termed thermomorphogenesis to facilitate plant cooling under high-temperature conditions. Plant thermal response is suppressed by histone variant H2A.Z. At warm temperatures, H2A.Z is evicted from nucleosomes at thermo-responsive genes, resulting in their activation. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL26208

24 Samples

Download data: TXT

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

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platforms:

GPL7299 GPL6177

14 Samples

Download data: TXT

(Submitter supplied) To identify biological function of HSFB transcriptional repressor, we subjected hsfb1 hsfb2b double mutant and wild-type Arabidopsis plant under heat condition (32 Celsius degree) and did microarray experiment. The microarray experiment under non-heated condition is described in GSE14702. We found expression of many heat-shock proteins (HSPs) is not fully enhanced in the double mutant when compared to wild-type plant. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL7299

4 Samples

Download data: TXT

(Submitter supplied) Biological and molecular function of Arabidopsis HSFB transcription factors was studied.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL6177

10 Samples

Download data: TXT

(Submitter supplied) In order to study the importance of HSFA1 in thermotolerance in Arabidopsis, we generated the HSFA1a, b, d and e quadruple mutant (QK). QK is very sensitive to heat. Therefore, we used microarray to study how many genes regulated by HSFA1 after heat shock.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

12 Samples

Download data: CEL

(Submitter supplied) In eukaryotes, DNA wraps around histones to form nucleosomes, which are compacted into chromatin. DNA-templated processes, including transcription, require chromatin disassembly and reassembly mediated by histone chaperones. Additionally, distinct histone variants can replace core histones to regulate chromatin structure and function. Although replacement of H2A with the evolutionarily conserved H2A.Z via the SWR1 histone chaperone complex has been extensively studied, in plants little is known about how a reduction of H2A.Z levels can be achieved in plants. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing; Methylation profiling by high throughput sequencing

Platform:

GPL21785

54 Samples

Download data: BROADPEAK, BW, NARROWPEAK, TXT, WIG

(Submitter supplied) Background: The regulation of gene activity in response to energy availability is an universal phenomenon. When molecular oxygen is limited the production of ATP is inefficient and growth is curtailed. The plant Arabidopsis thaliana rapidly responds to oxygen deprivation (hypoxia) by elevating the abundance of ~50 hypoxia-responsive gene (HRG) transcripts that are prioritized for translation. Many other cellular mRNAs are sequestered in ribonucleoprotein complexes and not translated during hypoxia, including those encoding ribosomal proteins (RPs). more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing; Other

Platforms:

GPL21785 GPL17639

87 Samples

Download data: TXT, XLSX

(Submitter supplied) The SWR1 chromatin remodeling complex, which deposits the histone variant H2A.Z into nucleosomes, has been characterized in yeast and animals but had not been purified from plants. We used the conserved SWR1 subunit ACTIN RELATED PROTEIN 6 (ARP6) as bait in tandem affinity purification experiments to isolate associated proteins from Arabidopsis thaliana. We identified all 11 subunits found in yeast SWR1 and the homologous mammalian SRCAP complexes, demonstrating that this complex is conserved in plants. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19580

21 Samples

Download data: BED, BW

(Submitter supplied) The goal of this study is to measure Arabidopsis mRNA transcription and mRNA decay rates genome wide at two temperatures, and thus to calculate the temperature coefficient of both processes. Sensing and response to ambient temperature is important for controlling growth and development of many organisms, in part by regulating mRNA levels. mRNA abundance can change with temperature, but it is unclear whether this results from changes to transcription or decay rates and whether passive or active temperature regulation is involved. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

24 Samples

Download data: CEL

(Submitter supplied) We report POWERDRESS (PWR), a SANT domain containing protein known to facilitate the deacetylation of lysine rich residues of histone H3 by HISTONE DEACETYLASE 9 (HDA9), to play key role in temperature induced growth in Arabidopsis thaliana. Mutations in PWR showed severe attenuation in high temperature associated phenotypes viz., temperature-induced hypocotyl elongation, petiole elongation and early flowering. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13222

8 Samples

Download data: CSV

(Submitter supplied) Adaptive plasticity in stress responses is a key element of plant survival strategies. For instance, moderate heat stress (HS) primes a plant to acquire thermotolerance, which allows subsequent survival of more severe HS conditions. Acquired thermotolerance is actively maintained over several days (HS memory) and involves the sustained induction of memory-related genes. We find FORGETTER3/ HEAT SHOCK TRANSCRIPTION FACTOR A3 (FGT3/HSFA3) to be specifically required for physiological HS memory and maintaining high memory-gene expression during the days following a HS exposure. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24025

48 Samples

Download data: TXT