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Transcriptome analysis of embryonic axes of soybean seeds germinating in the presence of the gibberellin (GA) biosynthesis inhibitor paclobutrazol (PBZ)

ABSTRACT: Transcriptome analysis of embryonic axes of soybean seeds germinating in the presence of the gibberellin (GA) biosynthesis inhibitor paclobutrazol (PBZ)

PROVIDER: PRJNA449429 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6967110.fastq.gz	Fastqsanger.gz
	SRR6967120.fastq.gz	Fastqsanger.gz
	SRR6967111.fastq.gz	Fastqsanger.gz
	SRR6967121.fastq.gz	Fastqsanger.gz
	SRR6967112.fastq.gz	Fastqsanger.gz

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Transcriptome analysis of embryonic axes of soybean seeds germinating in the presence of the gibberellin (GA) biosynthesis inhibitor paclobutrazol (PBZ)

Project description:Purpose: A time-course transcriptome study to identify probable GA-responsive genes in soybean embryonic axes during seed germination. Methods: Seeds were germinated in the presence or absence of 200 µM PBZ. Seeds were germinated in 28°C temperature and 12/12h photoperiod (dark/light) and harvested at 12, 24 and 36 hours after imbibition (HAI). Three biological replicates were performed. Results: Identification of GA-responsive genes during germination in Glycine max.

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Gibberellin (GA) Treatment of Arabidopsis Root Tips

Project description:The plant hormone gibberellin (GA) represents an important regulator of growth and development. Early transcriptional events controlled by GA are not well characterised. Previous microarray studies have identified genes responsive to GA treatment in the whole seedling. The whole seedling represents many tissues where subtle effects of GA treatment in specific tissues may be masked. When treated with GA, an effect on the growth rate of roots was observed. More specifically, the shorter root of a GA-deficient plant can be rescued to wild-type length by the application of GA. This experiment was designed to identify GA-regulated genes in the root tips of Arabidopsis. The use of a GA-deficient mutant provides a greater potential to identify genes responding to GA treatment. Root tips are ideally suited for the quick uptake of the hormone treatment. There will be two biological replicates which will each consist of a control treatment at 0 minutes and 2 hours, as well as the experimental GA-treated 2 hour time point. This system provides an opportunity to compare gene expression between treated and non-treated root tips and allow the identification of early GA-responsive genes.

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Project description:Effect of GA on PAC and PAO1 treated Arabidopsis seeds. Seeds were treated during 20h with paclobutrazol (PAC) or with lyophilized extracts of Pseudomonas aeruginosa liquid culture medium (PAO1). Experiments were also performed with exogenous application of gibberellic acid.

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Project description:The aim of the experiment was to identify early gibberellin (GA) responsive genes in the roots of an Arabidopsis GA deficient mutant.The GA deficient mutant used in this study is a transgenic line overexpressing the PcGA2ox1 gene. This mutant has an identical phenotype to ga1-3, but it does not require exogenous GA treatment for germination.Seeds were germinated on 1xMS + 1% (w/v) sucrose plates containing 0.7% gelrite, and grown under continous light. The plates were orientated vertically.After six days growth the plates were treated with or without 5uM GA4 for 0, 30, 60 and 180 minutes.Approximately 400 hypocotyls were harvested per timepoint using a razorblade and after excision the hypocotyls were frozen in liquid nitrogen giving a total of 7 experimental samples (1: untreated, 2: 30 mins GA4, 3: 30 mins untreated, 4: 60 mins GA4, 5: 60 mins untreated, 6: 180 mins GA4, 7: 180 mins untreated. Three biological replicates were performed giving a total of 21 root samples. Total RNA was isolated from the roots using the QIAGEN RNeasy method. Keywords: Expression profiling by array

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Project description:Microarray analysis was performed to know how many gibberellin (GA)-responsive genes are inhibited by beta-Yariv reagent, a specific binder of plant arabinogalactan-proteins. cRNAs were prepared from mRNAs isolated from aleurone protoplasts that were treated with GA, GA plus beta-Yariv reagent, or mock (DMSO)-treated for 24 hours, and were subjected to microarray analysis. The analysis was performed twice using target cRNAs prepared independently. Experiment Overall Design: 2 control (DMSO), 2 gibberellin and 2 gibberellin plus beta-Yariv reagent-treated biological replicates were analyzed at 24 h.

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Project description:The goal of this study was to search for DELLA-independent GA-regulated genes in tomato. RNA deep sequencing (RNA-seq) was performed to GA-treated M82 and pro∆GRAS mutant. Using a two fold increased or decreased cutoff we identified 81 GA-up regulated and 15 GA-down regulated genes, from which five genes were DELLA-independent. M82 and pro∆GRAS seedlings were treated with Paclobutrazol (10mg/l) once a day for three days followed by a single GA3 application (100 µM). Three hours after the GA treatment, young leaves were collected and RNA was extracted for Illumina HiSeq 2500 sequencing. A total of eight samples were analyzed, each treatment had two biological replicates.

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