Arabidopsis thaliana
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA388705 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Identification of LEC1 binding sites in Arabidopsis bent cotyledon stage seeds
| PRJNA388934 | ENA
Project description:RGA binding sites in Arabidopsis thaliana seedlings
| PRJNA254703 | ENA
Project description:Genome-wide EML1 binding sites in Arabidopsis thaliana seedlings
| PRJNA386925 | ENA
Project description:LEAFY COTYLEDON1 (LEC1), an atypical subunit of the NF-Y CCAAT binding transcription factor, is a central regulator that controls many aspects of seed development including the maturation phase during which seeds accumulate storage macromolecules and embryos acquire the ability to withstand desiccation. To define the gene network and developmental processes controlled by LEC1, genes regulated directly by and downstream of LEC1 were identified. In this part of the study, we identified the genes bound by LEC1 by overexpressing a FLAG-tagged inducible form of LEC1 in Arabidopsis seedlings and inducing LEC1 activity for a short (4 hours) or long (8 days) period of time, to identify the genes bound EARLY and LATE, respectively.
2017-07-12 | GSE99529 | GEO
Project description:LEAFY COTYLEDON1 (LEC1), an atypical subunit of the NF-Y CCAAT binding transcription factor, is a central regulator that controls many aspects of seed development including the maturation phase during which seeds accumulate storage macromolecules and embryos acquire the ability to withstand desiccation. To define the gene network and developmental processes controlled by LEC1, genes regulated directly by and downstream of LEC1 were identified. In this part of the study, we identified the genes regulated by LEC1 by overexpressing an inducible form of LEC1 in Arabidopsis seedlings and identifying the mRNAs induced EARLY (1h) after induction of LEC1 activity.
2017-07-12 | GSE99528 | GEO
Project description:mRNA changes following induction of LEC1 activity in Arabidopsis seedlings
| PRJNA388706 | ENA
Project description:Identification of LEC1 binding sites in Arabidopsis seeds during embryo expansion stage
| PRJNA432504 | ENA
Project description:We report on the identification of nitric-oxide regulated H3K9/14ac sites in Arabidopsis. For this purpose liquid grown Arabidopsis seedlings were treated with the natural NO-donor S-nitrosoglutathione (GSNO), GSNO in combination with the NO-scavenger cPTIO, GSH (control) or TSA (positive control). Material was crosslinked and harvested 3h and 16h after onset of the treatments. Then, quantitative analysis of the H3K9/14ac patterns across these treatment was performed using DiffBind. By comparison of the GSNO and GSNO/cPTIO treatment, NO-regulated H3K9/14ac sites were identified. These sites were then annotated to the nearest TSS. GO enrichment analysis revealed that NO affects H3K9/14ac at many stress-responsive and photosynthetic genes.
2017-03-07 | GSE82075 | GEO
Project description:In plants, fatty acids are de novo synthesized predominantly in plastids fromacetyl-CoA. Although fatty acid biosynthesis has been biochemically well-studied, little isknown about the regulatory mechanisms of the pathway. Here, we show that overexpressionof the Arabidopsis (Arabidopsis thaliana) LEAFY COTYLEDON1 (LEC1) gene causesglobally increased expression of fatty acid biosynthetic genes, which are involved in keyreactions of condensation, chain elongation and desaturation of fatty acid biosynthesis. Inthe plastidial fatty acid synthetic pathway, over 58% of known enzyme-coding genes areupregulated in LEC1-overexpressing transgenic plants, including those encoding threesubunits of acetyl-CoA carboxylase, a key enzyme controlling the fatty acid biosynthesisflux. Moreover, genes involved in glycolysis and lipid accumulation are also upregulated.Consistent with these results, levels of major fatty acid species and lipids were substantiallyincreased in the transgenic plants. Genetic analysis indicates that the LEC1 function ispartially dependent on ABSCISIC ACID INSENSITIVE3, FUSCA3 and WRINKLED1 in theregulation of fatty acid biosynthesis. Moreover, a similar phenotype was observed intransgenic Arabidopsis plants overexpressing two LEC1-like genes of Brassica napus.These results suggest that LEC1 and LEC1-like genes act as key regulators to coordinate theexpression of fatty acid biosynthetic genes, thereby representing a promising target forgenetic improvement of oil-production plants.
2008-08-31 | GSE12137 | GEO