Arabidopsis thaliana
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA152271 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR404205.fastq.gz | Fastqsanger.gz | |||
| SRR404206.fastq.gz | Fastqsanger.gz | |||
| SRR404207.fastq.gz | Fastqsanger.gz | |||
| SRR404208.fastq.gz | Fastqsanger.gz | |||
| SRR404209.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 20 |
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Project description:The heterotic hybrid offspring of Arabidopsis accessions C24 and Landsberg erecta have altered methylomes. Changes occur most frequently at loci where parental methylation levels are different. There are context-specific biases in the non-additive methylation patterns with mCG generally increased and mCHH decreased relative to the parents. These changes are a result of two main mechanisms, Trans Chromosomal Methylation (TCM) and Trans Chromosomal deMethylation (TCdM), where the methylation level of one parental allele alters to resemble that of the other parent. Regions of altered methylation are enriched around genic regions and are often correlated with changes in siRNA levels. We identified examples of genes with altered expression likely to be due to methylation changes and suggest that in crosses between the C24 and Ler accessions, epigenetic controls can be important in the generation of altered transcription levels which may contribute to the increased biomass of the hybrids. C24, Ler, and C24 x Ler
2012-02-05 | E-GEOD-35542 | biostudies-arrayexpress
Project description:The heterotic hybrid offspring of Arabidopsis accessions C24 and Landsberg erecta have altered methylomes. Changes occur most frequently at loci where parental methylation levels are different. There are context-specific biases in the non-additive methylation patterns with mCG generally increased and mCHH decreased relative to the parents. These changes are a result of two main mechanisms, Trans Chromosomal Methylation (TCM) and Trans Chromosomal deMethylation (TCdM), where the methylation level of one parental allele alters to resemble that of the other parent. Regions of altered methylation are enriched around genic regions and are often correlated with changes in siRNA levels. We identified examples of genes with altered expression likely to be due to methylation changes and suggest that in crosses between the C24 and Ler accessions, epigenetic controls can be important in the generation of altered transcription levels which may contribute to the increased biomass of the hybrids.
2012-02-05 | GSE35542 | GEO
Project description:This SuperSeries is composed of the following subset Series: GSE34655: Genome-wide profiling of DNA methylation in two Arabidopsis ecotypes and their reciprocal hybrids - mRNA-seq GSE34656: Genome-wide profiling of DNA methylation in two Arabidopsis ecotypes and their reciprocal hybrids - small RNA-seq GSE34657: Genome-wide profiling of DNA methylation in two Arabidopsis ecotypes and their reciprocal hybrids - Bisulfite-seq Refer to individual Series
2011-12-22 | E-GEOD-34658 | biostudies-arrayexpress
Project description:Methylation interactions in Arabidopsis hybrids require RNA-directed DNA methylation and are influenced by genetic variation
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Project description:This SuperSeries is composed of the following subset Series: GSE24494: cgh_colvsc24_chr4-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE24831: cgh_colvsc24_wg-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE24835: cgh_colvscvi_wg-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25049: h3k4me2_c24_chr4-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25050: h3k27me3_colxcvi-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25051: h3k27me3_cvi-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25052: h3k27me3_col(cvi)-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25053: h3k4me2_colxcvi-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25054: h3k4me2_cvi-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25056: h3k4me2_col(cvi)-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25057: h3k27me3_colxc24-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25058: h3k27me3_c24-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25059: h3k27me3_col(c24)-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25060: h3k4me2_colxc24_chr4-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions GSE25061: h3k4me2_col_chr4-Analysis of epigenomic changes in hybrids Arabidopsis thaliana Col-0, C24 and Cvi accessions Refer to individual Series
2011-05-17 | E-GEOD-24836 | biostudies-arrayexpress
Project description:Heterosis is a fundamental biological phenomenon characterized by the superior performance of a hybrid over its parents in many traits, but the underlying molecular basis remains elusive. To investigate whether DNA methylation plays a role in heterosis, we compared at single base-pair resolution the DNA methylomes of Arabidopsis Ler and C24 parental lines and their reciprocal F1 hybrids that exhibited heterosis for many quantitative traits. Both hybrids displayed increased DNA methylation across their entire genomes, especially in transposable elements. Interestingly, we found that increased methylation of the hybrid genomes predominantly occurred in regions that were differentially methylated in the two parents and covered by small RNAs (sRNAs), implying that the RNA-directed DNA methylation (RdDM) pathway may direct DNA methylation in hybrids. In addition, we found that 77 genes sensitive to remodeling of DNA methylation were transcriptionally repressed in both reciprocal hybrids, including genes involved in flavonoid biosynthesis and two circadian oscillator genes, CIRCADIAN CLOCK ASSOCIATED1 and LATE ELONGATED HYPOCOTYL. Moreover, growth vigor of F1 hybrids was compromised by treatment with an agent that demethylates DNA, and by abolishing production of functional small RNAs due to mutations in Arabidopsis RNA methyltransferase HUA ENHANCER1. Together, our data suggest that genome-wide remodeling of DNA methylation directed by the RdDM pathway may play a role in hybrid vigor. Examination of DNA methylation by Bisulfite sequencing in 2 Arabidopsis ecotypes and their reciprocal hybrids.
2011-12-22 | E-GEOD-34657 | biostudies-arrayexpress
Project description:The trans-differentiation of cultured Arabidopsis cells
| PRJNA97687 | ENA
Project description:Genome-wide profiling of DNA methylation in two Arabidopsis ecotypes and their reciprocal hybrids - Bisulfite-seq
| PRJNA156361 | ENA
Project description:Genome-wide profiling of DNA methylation in two Arabidopsis ecotypes and their reciprocal hybrids - mRNA-seq
| PRJNA156363 | ENA
Project description: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
2011-05-17 | GSE25057 | GEO