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Arabidopsis thaliana

ABSTRACT: Transcriptome analysis of estradiol-inducible overexpression of transcription factor WRKY75 in Arabidopsis thaliana

PROVIDER: PRJNA317229 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3325320.fastq.gz	Fastqsanger.gz
	SRR3325321.fastq.gz	Fastqsanger.gz
	SRR3325322.fastq.gz	Fastqsanger.gz
	SRR3325323.fastq.gz	Fastqsanger.gz
	SRR3325314.fastq.gz	Fastqsanger.gz

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Transcriptome analysis of estradiol-inducible overexpression of transcription factor WRKY75 in Arabidopsis thaliana

2016-04-03 | GSE79856 | GEO

Transcriptome analysis of estradiol-inducible overexpression of transcription factor WRKY75 in Arabidopsis thaliana

Project description:Sequence-specific transcription factor WRKY75 is highly responsive to reactive oxygen species on transcriptional level in the rosettes of Arabidopsis thaliana. In addition, it acts in developmental responses, acquisition of nutrients, and in stress responses. In the root, WRKY75 is a repressor of root hair formation, it regulates the phosphate starvation response, and the response to certain pathogens. In order to find the target genes of WRKY75, the effects of estradiol-inducible overexpression of WRKY75 on transcriptome was studied using RNA-seq. Two independent inducible WRKY75 overexpressor lines (N2102362 and N2102363) were treated with estradiol for 3 hours and four biological replicates, five plant per replicate, were used for RNA-seq. As a control, wild type Col-0 was treated with estradiol or water for 3 hours and three biological replicates, five plant per replicate, were used for RNA-seq.

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Project description:The goal of this experiment was to identify the downstream targets of the GOLVEN6 peptide signaling pathway in Arabidopsis thaliana, specifically during lateral root initiation. Using an estradiol inducible GLV6 overexpression construct in wildtype and rgi1rgi5 double mutant (mutant in receptors for the GLV6 peptide) backgrounds, in combination with gravistimulation induced lateral root formation, the RGI receptor dependent transcriptional effects of GLV6 overexpression were characterized. An estradiol inducible GLV6 overexpression line in a wildtype (iGLV6) and in an rgi1rgi5 double receptor mutant background (rgi1rgi5/iGLV6) were used. 4-day old seedlings of both lines were gravistimulated (vertically grown seedlings were turned counterclockwise by 90°) to induce lateral root initiation in the resulting root bends. 8h after gravistimulation, seedlings of both lines were treated with 2µM of estradiol to induce GLV6 overexpression, or DMSO as a mock treatment. 3h and 6h after treatment, root bends were dissected and collected for RNA-sequencing. This yielded a total of 8 samples per replicate; 3h mock treated iGLV6 (IM3), 3h estradiol treated iGLV6 (IE3), 3h mock treated rgi1rgi5/iGLV6 (RM3), 3h estradiol treated rgi1rgi5/iGLV6 (RE3), 6h mock treated iGLV6 (IM6), 6h estradiol treated iGLV6 (IE6), 6h mock treated rgi1rgi5/iGLV6 (RM6), 6h estradiol treated rgi1rgi5/iGLV6 (RE6). For each sample, 4 replicates were obtained. This setup enabled the comparison of the GLV6 induced transcriptional effects between wildtype and rgi1rgi5 mutants at 2 time points after treatment, in samples that are strongly enriched for lateral root initiation events.

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