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Arabidopsis thaliana strain:Col0

ABSTRACT: Arabidopsis thaliana MA lines - SD and LD

PROVIDER: PRJNA245421 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR1263020_1.fastq.gz	Fastqsanger.gz
	SRR1263020_2.fastq.gz	Fastqsanger.gz
	SRR1263011_1.fastq.gz	Fastqsanger.gz
	SRR1263011_2.fastq.gz	Fastqsanger.gz
	SRR1263021_1.fastq.gz	Fastqsanger.gz

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Role of bHLH93 in controlling flowering time in Arabidopsis

Project description:Flowering in plants is a very dynamic and synchronized process where various cues including age, day-length, temperature and endogenous hormones fine-tune the timing of flowering for reproductive success. Arabidopsis thaliana is a facultative long day plant where long-day (LD) photoperiod promotes flowering. Arabidopsis still flowers under short-day (SD) conditions, albeit much later than LD conditions. Although, factors regulating the photoperiodic LD pathway have been extensively investigated, the SD pathway is much less understood. Here we identified a critical transcription factor called bHLH93 (basic Helix-Loop-Helix 93) that is essential to induce flowering specifically under SD conditions in Arabidopsis. bhlh93 mutants do not flower from primary meristem under SD conditions, but flowers similar to wild type under LD conditions. The late flowering phenotype is rescued by exogenous application of GA, suggesting that bHLH93 acts upstream of GA pathway to promote flowering. Double mutant studies showed that bhlh93 is epistatic to phyB and soc1 genes under SD conditions. bHLH93 is expressed at the meristematic regions and its expression peaks at 8 hours after dawn under SD conditions. As expected, the bHLH93 is localized in the nucleus. Taken together, these data suggest that bHLH93 is a key transcription factor necessary for Arabidopsis thaliana to evolve as a facultative plant.

2011-12-31 | GSE29786 | GEO

Arabidopsis thaliana strain:col0

Project description:Arabidopsis thaliana strain:col0 Raw sequence reads

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Arabidopsis thaliana strain:Col0

Project description:Arabidopsis thaliana strain:Col0 Raw sequence reads

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Arabidopsis thaliana strain:Col0

Project description:Arabidopsis thaliana strain:Col0 Transcriptome or Gene expression

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Project description:Arabidopsis thaliana strain:COl0 Transcriptome or Gene expression