Arabidopsis thaliana
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA167103 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Transcriptome, translatome, and CSP1 RNA regulon analysis of 25-d-o Arabidopsis rosettes exposed to 12h low temperature (4C) treatment. 38 samples, 3 genotypes (35S:HF-RPL18, 35S:AtCSP1-FH#11, and atcsp1-1), 2 conditions (non-stress and cold), 3 RNA pools (total, polysomal, and CSP1 associated mRNAs), 2-3 biological replicates
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Project description:Transcriptome, translatome, and CSP1 RNA regulon analysis of 25-d-o Arabidopsis rosettes exposed to 12h low temperature (4C) treatment.
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Project description:au13-12_polysome - transcriptome and translatome of arabidopsis wt seeds according to dormancy - Identification of transcripts that are differentially abundant (transcriptome) and transcripts that are addressed to translation (translatome) in imbibed Arabidopsis seeds in relation with dormancy. During imbibition of seeds (16h and 24h in darkness at 25°C, dormant and non-dormant seeds), transcriptome analysis is done on total RNA and translatome analysis on polysomal RNA. - At harvest seeds are dormant. They stay dormant if they are stored at -20°C (D) and become non-dormant (ND) if they are stored 3 weeks at +20°C. Arabidopsis dormant seeds do not germinate at 25°C in darkness while non-dormant seeds do. Total RNA and polysomal RNA (polysomal fractions purified on sucrose gradients) were extracted from imbibed seeds for 16h or 24h at 25°C in darkness (3 biological replicates). Transcriptome and translatome are compared for Dormant vs Non-Dormant for 16h and 24 imbibition. In silico comparison will allow to compare transcriptome and translatome for each point and type of seeds and to compare the time points (16 vs 24h) for each type of sample.
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Project description:Alternative splicing plays a major role in expanding the potential informational content of eukaryotic genomes. It is an important post-transcriptional regulatory mechanism that can increase protein diversity and affect mRNA stability. Cold stress, which adversely affects plants growth and development, regulates the transcription and splicing of plants splicing factors. This affects the pre-mRNA processing of many genes. To identify cold regulated alternative splicing we applied Affymetrix Arabidopsis tiling arrays to survey the transcriptome under cold treatment conditions. Two-week old Arabidopsis seedlings grown on agar were subjected to 24 hours of cold (4°C) treatment under long day conditions. Control and cold-treated plants were harvested at the same time to ensure that observed differences would not be due to circadian clock effects on transcripts. Total RNA from four biological repeats were used for microarray hybridization.
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