Project description:CHD3 proteins are ATP-dependent chromatin remodeling factors that are components of diverse multisubunit complexes that can either repress or activate gene expression. In plants, the CHD3 protein PICKLE (PKL) is necessary for repression of seed-specific genes during germination and promotes deposition of the repressive epigenetic mark trimethylation of histone H3 lysine 27 (H3K27me3). It is unknown, however, if PKL acts directly at H3K27me3-enriched loci. We undertook a microarray analysis of 14-day-old plants and found that PKL continues to play an important role in expression of H3K27me3-enriched genes and in specification of developmental identity after germination. We used microarray to identify genes that are differentialy expressed in 14-day-old pkl seedlings and used chormatin immunoprecipitation to identify genes that are the direct targets of PKL. Wild-type (Col-0) and pkl-1 seedlings were grown on 1/2 MS plates with constant light and harvsted after 14-day growth. Three biological replicates.
Project description:CHD3 proteins are ATP-dependent chromatin remodeling factors that are components of diverse multisubunit complexes that can either repress or activate gene expression. In plants, the CHD3 protein PICKLE (PKL) is necessary for repression of seed-specific genes during germination and promotes deposition of the repressive epigenetic mark trimethylation of histone H3 lysine 27 (H3K27me3). It is unknown, however, if PKL acts directly at H3K27me3-enriched loci. We undertook a microarray analysis of 14-day-old plants and found that PKL continues to play an important role in expression of H3K27me3-enriched genes and in specification of developmental identity after germination. We used microarray to identify genes that are differentialy expressed in 14-day-old pkl seedlings and used chormatin immunoprecipitation to identify genes that are the direct targets of PKL.
Project description:1-day-old seedlings of Col-0 and vil1-1 were performed RNA-Seq to identify differentially expressed genes caused by VIL1 mutation in Arabidopsis
Project description:Chromatin immunoprecipitation was performed in nlp2-2 Arabidopsis thaliana Col-0 14-d-old seedlings complemented by a pNLP2::NLP2-GFP construct upon 30 minutes NO3- resupply after a 3-day NO3- starvation.
Project description:Photoperiod is a circannual signal measured by biological systems to align growth and reproduction with the seasons. To understand the effect of photoperiod of gene expression in Arabidopsis thaliana in the absence of exogenous sugar under constant light intensity, we performed time course mRNA-seq analysis on 13-day old seedlings across three photoperiods with triplicates to identify photoperiod-regulated genes.