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E-GEOD-68560

ABSTRACT: Transcription profiling by high throughput sequencing of Arabidopsis exposed to a pulse of white light at ZT18 to study the effect of light on alternative splicing

PROVIDER: E-GEOD-68560 | ExpressionAtlas | 2017-02-20

REPOSITORIES: ExpressionAtlas

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			Action	DRS
	E-GEOD-68560-analysis-methods.tsv	Tabular
	E-GEOD-68560-analytics.tsv	Tabular
	E-GEOD-68560-atlasExperimentSummary.Rdata	Rdata
	E-GEOD-68560-configuration.xml	Xml
	E-GEOD-68560-g1_g2-mvaPlot.png	Other

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Photomorphogenesis of Arabidopsis seedlings is accompanied by complex alternative splicing alterations

Project description:We analyzed transcriptome-wide gene expression and AS changes in etiolated Arabidopsis seedlings exposed to red, blue, and white light. Our study revealed that different types of light signals trigger rapid AS responses of numerous genes, including splicing factors and other functional groups. Among these candidates was RRC1, which was previously shown to function in PHYB signaling. The light signaling phenotype of an rrc1 mutant could only be complemented with the splicing variant being up-regulated upon light exposure, indicating a self-reinforcing circuit. Finally, we provide evidence that light-regulated AS can occur in a phytochrome-independent manner and is closely intertwined with the plantâ??s energy status. Analysis of alternative splicing patterns of dark-grown Arabidopsis seedlings exposed for 1 or 6 hours to white, blue, or red light, or kept in darkness; all samples in duplicates

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Next Generation Sequencing For Quantitative Analysis Of Hepatic Transcriptomes In Response To Squalene

Project description:Purpose: The goal of this study was to determine squalene effect on hepatic transcriptome by comparing high-throughput data for tested group vs. control group in Wildtype New Zealand white rabbits. Method: Hepatic mRNA profile of two Wildtype New Zealand white rabbits groups fed over 4 weeks with 1% of sunflower oil and the second fed with purified 1% of sunflower oil and 0.5% of squalene was analysed by Transcriptome sequencing using DNBseq platform. Sequence reads that passed quality filters were mapped onto reference genome, followed by SNP & INDEL calling and Gene expression detection. Results: Squalene intake did not significantly influence single nucleotide polymorphisms. When alternative splicing events were tested, squalene administration had significant influence on splicing events, alternative 5' splicing, alternative 3' splicing Site and retained intron while no effect was found on skipped exons or mutually exclusive exons. Splicing patterns led to variety of differentially splicing genes and a variety of different isoforms from one gene. Differentially expressed genes were 18,485 in the squalene group and 18,286 in the control group. Conclusions: This study represents the first analysis of hepatic transcriptome in respond to squalene. Result data confirm that RNA-Sequencing is a sensitive and accurate tool that provides a framework for comparative investigations of known and novel DEGs.

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Project description:Purpose: The goal of this study was to determine squalene effect on hepatic transcriptome by comparing high-throughput data for tested group vs. control group in male Large White x Landrace Large swine animals Method: Study the Hepatic mRNA profile of swine animals in response to a steatotic diet supplied with 0.5% squalene over a month by Transcriptome sequencing using DNBseq platform. Sequence reads that passed quality filters were mapped onto reference genome, followed by SNP & INDEL variants calling and Gene expression detection. Results: Squalene intake did not significantly influence single nucleotide polymorphisms. When alternative splicing events were tested, squalene administration had significant influence on splicing events including alternative 5' splicing, alternative 3' splicing , retained intron, skipped exons and mutually exclusive exons. Splicing patterns led to variety of differentially splicing genes and a variety of different isoforms from one gene. Differentially expressed genes were 18,659 in the squalene group and 18,602 in control group.

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