E-MTAB-4123
Ontology highlight
ABSTRACT:
PROVIDER: E-MTAB-4123 | ExpressionAtlas | 2019-01-10
REPOSITORIES: ExpressionAtlas
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| E-MTAB-4123-analysis-methods.tsv | Tabular | |||
| E-MTAB-4123-atlasExperimentSummary.Rdata | Rdata | |||
| E-MTAB-4123-coexpressions.tsv.gz | Tabular | |||
| E-MTAB-4123-configuration.xml | Xml | |||
| E-MTAB-4123-factors.xml | Xml |
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Project description:We report the application of methylacytosine immunoprecipetation combined with Illumina sequencing (MeDIP-seq) for high-throughput profiling of DNA methylation in rice embryo 3, 6, 9 DAP and endosperm 2, 3, 6, 9 DAP. A total number of 12-14 million of 2×49 bp paired-end reads was generated for each sample, and BOWTIE2 was used for read mapping. We generated genome-wide DNA methylation profiles of rice embryo and endosperm. This study provides a framework to systemically characterize the effect of DNA methylation in developing seeds and will help to illustrate the epigenetic regulation of rice seed development. Rice embryo and endosperm were selected for DNA extraction and methylacytosine immunoprecipetation combined with Illumina sequencing. We sought to obtain the genome-wide DNA methylation profilings of embryo at 3,6,9 days after pollination(DAP) and endosperm at 2,3,6,9 DAP. To that end, we hand-selected embryo at 3,6,9 DAP and endosperm at 2,3,6,9 DAP according to morphological criteria.
2015-09-01 | E-GEOD-57706 | biostudies-arrayexpress
Project description:We report the application of methylacytosine immunoprecipetation combined with Illumina sequencing (MeDIP-seq) for high-throughput profiling of DNA methylation in rice embryo 3, 6, 9 DAP and endosperm 2, 3, 6, 9 DAP. A total number of 12-14 million of 2×49 bp paired-end reads was generated for each sample, and BOWTIE2 was used for read mapping. We generated genome-wide DNA methylation profiles of rice embryo and endosperm. This study provides a framework to systemically characterize the effect of DNA methylation in developing seeds and will help to illustrate the epigenetic regulation of rice seed development.
2015-09-01 | GSE57706 | GEO
Project description:Using Illumina’s high-throughput small RNA sequencing and RNA sequencing, miRNAs and mRNAs differentially expressed under Zn deficiency and Zn resupply conditions were identified in shoots and roots of rice seedlings. A total of 68 miRNAs were identified to be differentially expressed under Zn deficiency and/or Zn resupply, and 38 of them were novel miRNAs. The Zn-responsive miRNAs were predicted to target a total of 799 genes. The transcriptome sequencing identified a total of 360 differentially expressed genes (DEGs) under Zn deficiency in shoots and roots, and 97 of them were recovered after Zn resupply treatment. Twelve DEGs were found to be potential targets genes of several Zn-responsive miRNAs like miR171g-5p, miR397b-5p, miR398a-5p, and miR528-5p.
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Project description:Transcription profiling by high throughput sequencing of the potato (genotype RH89-039-16) ArrayExpress Release Date: 2011-07-11 Person Roles: submitter Person Last Name: Soenderkaer Person First Name: Mads Person Mid Initials: Person Email: mson@bio.aau.dk Person Phone: 4530532492 Person Address: Sohngaardsholmsvej 49, 9000 Aalborg, Denmark Person Affiliation: Aalborg University
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Project description:We report the application of single-molecule-based sequencing technology for high-throughput profiling of histone H3 trimethylation in rice endosperm. By obtaining about four hundred million bases of sequence from rice chromatin immunoprecipitated DNA, we generated genome-wide chromatin-state maps of rice endosperm. We find that the presence of H3K27me3 in either upstream or downstream of a gene is predominately associated with repression of the gene, while its absence is mainly associated with high gene expression. Examination of Histone H3 lysine 27 trimethylation in rice endosperm.
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Project description:Transcriptome analysis is an important approach to associate genotype with phenotype. The content and dynamics of eukaryotic transcriptome are far more complex than previously anticipated. Here we integrated high-throughput RNA-seq and paired-end method to conduct an unprecedentedly deep survey of transcription profile for cultivated rice, one of the oldest domesticated crops species and has since spread worldwide to become one of the major staple foods. Analysis of reads mapping revealed 4,244 previously uncharacterized transcripts, including a mass of protein-coding genes and putative functional non-coding RNA genes. Alignment of junction reads indicated over 42% of rice multiple-exon genes produce two or more distinct splicing isoforms. It’s intriguing that we identified 1,356 putative gene fusion events, indicating the 234 fusion gene produced by trans-splicing vastly increases the complexity of rice transcriptome, together with the pervasive alternative splicing events. Digital gene expression profiling revealed most rice duplicate genes were maintained by the selection constraint on gene dosages, which would increase the genetic robustness of rice to counteract deleterious mutations Keywords: Expression profiling by high throughput sequencing mRNA expression of 8 independent rice tissues was determined by method of RNA-Seq using short reads from high throughput sequencing technology. Meanwhile small RNA populations from mixture solution pooled from total RNA of each 8 tissues were also sequenced.
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