GEO DataSets

(Submitter supplied) Ecotype-specific differences in genome methylation were assayed in Arabidopsis Col and Ler variations using genomic tiling microarrays. Comparative genome hybridization was also performed so that the contribution of ecotype-specific amplifications and deletions could be estimated and integrated into the analysis of differential DNA methylation. Keywords: methylation analysis and comparative genome hybridization

Organism:

Arabidopsis thaliana

Type:

Genome variation profiling by genome tiling array; Methylation profiling by array

Platform:

GPL5116

3 Samples

Download data

(Submitter supplied) Gene expression of Col, Van and reciprocal hybrids using double-stranded cDNA followed by bioprime random labeling, and hybridization to AtTILE1 forward array. Study on gene expression polymorphism between arabidopsis thaliana accessions Col-0 and Van-0. Study on the inheritance of gene expression in reciprocal hybrids. Keywords: cDNA hybridization

Organism:

Arabidopsis thaliana

Type:

Expression profiling by genome tiling array

Platform:

GPL1979

16 Samples

Download data: CEL

(Submitter supplied) CG Methylation of Col, Van and reciprocal hybrids using HpaII and MspI digestion followed by bioprime random labeling, and hybridization to AtTILE1 forward array. Study on constitutive and ploymorphic CG methylation between arabidopsis thaliana accessions Col-0 and Van-0. Study on the inheritance of CG methylation in reciprocal hybrids. Keywords: genomic hybridization

Organism:

Arabidopsis thaliana

Type:

Methylation profiling by genome tiling array

Platform:

GPL1979

32 Samples

Download data: CEL

(Submitter supplied) Cytosine DNA methylation is important for transposon silencing and epigenetic regulation of endogenous genes. Using a single-chip tiling microarray with 35 bp resolution, we carried out the first unbiased mapping of DNA methylation in the entire genome of the flowering plant Arabidopsis thaliana.Pericentromeric heterochromatin, repetitive sequences and regions producing small interfering RNAs were heavily methylated. more...

Organism:

Arabidopsis thaliana

Type:

Methylation profiling by genome tiling array

Platform:

GPL1979

24 Samples

Download data: CEL

(Submitter supplied) Cytosine DNA methylation is important for transposon silencing and epigenetic regulation of endogenous genes. Using a single-chip tiling microarray with 35 bp resolution, we carried out the first unbiased mapping of DNA methylation in the entire genome of the flowering plant Arabidopsis thaliana.Pericentromeric heterochromatin, repetitive sequences and regions producing small interfering RNAs were heavily methylated. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by genome tiling array; Methylation profiling by array

Platforms:

GPL1979 GPL1980

18 Samples

Download data: CEL

(Submitter supplied) Changes in genome structure and gene expression have been documented in both resynthesized and natural allopolyploids that contain two or more divergent genomes. The underlying mechanisms for rapid and stochastic changes in gene expression are unknown. Arabidopsis suecica is a natural allotetraploid derived from the extant species A. thaliana and A. arenosa. Here we report that reduced DNA methylation in met1-RNAi A. more...

Organism:

Arabidopsis thaliana; Arabidopsis suecica

Type:

Expression profiling by array

Platform:

GPL5680

1 Sample

Download data: GPR

(Submitter supplied) DNA methylation is essential for silencing transposable elements and some genes in higher eukaryotes, implying that this modification must be tightly controlled. However, accidental changes in DNA methylation can be transmitted through mitosis, as in cancer, or meiosis, leading to epiallelic variation. Here, we demonstrate the existence of an efficient and faithful mechanism that protects against transgenerational loss of DNA methylation in the plant Arabidopsis. more...

Organism:

Arabidopsis thaliana

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL9386

2 Samples

Download data

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

Organism:

Arabidopsis thaliana; Arabidopsis lyrata

Type:

Expression profiling by genome tiling array; Expression profiling by high throughput sequencing

Platforms:

GPL11022 GPL10977

7 Samples

Download data: BED, CEL

(Submitter supplied) A major effort is underway to study the natural variation within the model plant species, Arabidopsis thaliana. Much of this effort is focused on genome resequencing, however the translation of genotype to phenotype will be largely effected through variations within the transcriptomes at the sequence and expression levels. To examine the cross-talk between natural variation in genomes and transcriptomes, we have examined the transcriptomes of three divergent A. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by genome tiling array

Platform:

GPL10977

3 Samples

Download data: CEL, TXT

(Submitter supplied) Transposable elements (TEs) are often the primary determinant of genome size differences among eukaryotes. In plants, the proliferation of TEs is countered through epigenetic silencing mechanisms that prevent transposition. Recent studies using the model plant Arabidopsis thaliana have revealed that methylated TE insertions are often associated with reduced expression of nearby genes, and these insertions may be subject to purifying selection due to their effect on nearby genes. more...

Organism:

Arabidopsis lyrata

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11022

4 Samples

Download data: BED

(Submitter supplied) Here we present the first whole-genome assemblies of Arabidopsis thaliana strains since the release of the 125 Mb reference genome sequence a decade ago. We demonstrate their practical relevance in studying the expression differences of polymorphic genes and show how the analysis of sRNA sequencing data can lead to erroneous conclusions if aligned against the reference genome alone.

Organism:

Arabidopsis thaliana

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL9302

8 Samples

Download data: FASTQ, TXT

(Submitter supplied) Hybrid Arabidopsis plants undergo epigenetic reprogramming producing decreased levels of 24nt siRNAs and altered patterns of DNA methylation that can affect gene expression. Driving the changes in methylation are the processes Trans Chromosomal Methylation (TCM) and Trans Chromosomal deMethylation (TCdM). In TCM/TCdM the methylation state of one allele is altered to resemble the other allele. These changes in DNA methylation and the associated changes in small RNA levels in the F1 hybrid can be maintained in subsequent generations and affect hundreds of regions in the F2 epigenome. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing; Methylation profiling by high throughput sequencing

Platform:

GPL17639

38 Samples

Download data: CSV, TXT, WIG

(Submitter supplied) a2e_heterosis - h3k4me2_col_chr4 - Arabidopsis thaliana accessions (Col-0, C24 and Cvi) and their hybrid were used to investigate the dynamics of the epigenome after intraspecific hybridization between - H3K4me2 profiling in Col

Organism:

Arabidopsis thaliana

Type:

Genome variation profiling by genome tiling array; Genome binding/occupancy profiling by genome tiling array

Platform:

GPL10772

8 Samples

Download data: GPR

(Submitter supplied) a2e_heterosis - h3k4me2_colxc24_chr4 - Arabidopsis thaliana accessions (Col-0, C24 and Cvi) and their hybrid were used to investigate the dynamics of the epigenome after intraspecific hybridization between - H3K4me2 profiling in ColxC24 hybrids

Organism:

Arabidopsis thaliana

Type:

Genome variation profiling by genome tiling array; Genome binding/occupancy profiling by genome tiling array

Platform:

GPL10772

8 Samples

Download data: GPR

(Submitter supplied) a2e_heterosis - h3k27me3_col(c24) - Arabidopsis thaliana accessions (Col-0, C24 and Cvi) and their hybrid were used to investigate the dynamics of the epigenome after intraspecific hybridization between - H3K27me3 profiling in Col

Organism:

Arabidopsis thaliana

Type:

Genome variation profiling by genome tiling array; Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL10919 GPL10920

8 Samples

Download data: PAIR

(Submitter supplied) a2e_heterosis - h3k27me3_c24 - Arabidopsis thaliana accessions (Col-0, C24 and Cvi) and their hybrid were used to investigate the dynamics of the epigenome after intraspecific hybridization between - H3K27me3 profiling in C24

Organism:

Arabidopsis thaliana

Type:

Genome variation profiling by genome tiling array; Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL10919 GPL10920

7 Samples

Download data: PAIR

(Submitter supplied) a2e_heterosis - h3k27me3_colxc24 - Arabidopsis thaliana accessions (Col-0, C24 and Cvi) and their hybrid were used to investigate the dynamics of the epigenome after intraspecific hybridization between - H3K27me3 profiling in ColxC24 hybrids

Organism:

Arabidopsis thaliana

Type:

Genome variation profiling by genome tiling array; Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL10920 GPL10919

8 Samples

Download data: PAIR

(Submitter supplied) a2e_heterosis - h3k4me2_col(cvi) - Arabidopsis thaliana accessions (Col-0, C24 and Cvi) and their hybrid were used to investigate the dynamics of the epigenome after intraspecific hybridization between - H3K4me2 profiling in Col-0

Organism:

Arabidopsis thaliana

Type:

Genome variation profiling by genome tiling array; Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL10919 GPL10920

8 Samples

Download data: PAIR

(Submitter supplied) a2e_heterosis - h3k4me2_cvi - Arabidopsis thaliana accessions (Col-0, C24 and Cvi) and their hybrid were used to investigate the dynamics of the epigenome after intraspecific hybridization between - H3K4me2 profiling in Cvi

Organism:

Arabidopsis thaliana

Type:

Genome variation profiling by genome tiling array; Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL10920 GPL10919

8 Samples

Download data: PAIR

(Submitter supplied) a2e_heterosis - h3k4me2_colxcvi - Arabidopsis thaliana accessions (Col-0, C24 and Cvi) and their hybrid were used to investigate the dynamics of the epigenome after intraspecific hybridization between - H3K4me2 profiling in ColxCvi hybrids

Organism:

Arabidopsis thaliana

Type:

Genome variation profiling by genome tiling array; Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL10920 GPL10919

8 Samples

Download data: PAIR