Project description:Small RNA sequences from Arabidopsis thaliana Col-0 inflorescence tissues of three biological replicates. The data were analyzed to identify non-templated nucleotides in Arabidopsis small RNAs.
Project description:Cytosine DNA methylation (mC) is a genome modification that can regulate the expression of coding and non-coding genetic elements. However, little is known about the involvement of mC in response to environmental cues. We performed whole genome bisulfite sequencing to assess the spatio-temporal dynamics of mC in Arabidopsis grown under phosphate starvation.
Project description:We intend to provide a high resolution compendium of changes in gene expression of Arabidopsis root upon exposure to Fe starvation, an important abiotic stress.
Project description:We obtained an Arabidopsis mutant from the Arabidopsis Biological Resource Center stock collection and verified that it was homozygous for a T-DNA insertion in the first exon of ORRM1 (SALK_072648, designated here as orrm1). The homozygous mutant did not show any phenotypic defect when grown under growth room conditions. We examined the organelle transcriptome of the mutant for editing defects because other proteins carrying RIP domains have been shown to be editing factors. We analyzed the plastid RNA editing extent with a new methodology based on RNA-seq. Briefly, total RNA is isolated from leaves and RT-PCR products corresponding to known organelle genes are obtained by using gene-specific primers. The products are mixed in equimolar ratio, sheared, and used as templates to produce an Illumina TruSeq library. This RNA-seq analysis demonstrated that ORRM1 is a plastid editing factor; 12 among 34 plastid sites exhibit a severe reduction of editing extent in the mutant relative to the wild-type
Project description:This study investigates extent and functional significance of alternative splicing in Arabidopsis thaliana defense against the bacterial pathogen Pseudomonas syringae pv tomato (Pst). We have provided a detailed characterization of the Arabidopsis thaliana transcriptional response to Pseudomonas syringae infection in both susceptible and resistant hosts. We carried out two independent inoculation experiments (biological replicates) for each treatment. Col-0 is susceptible to virulent Pst DC3000 but has a functional RPS4 resistance gene effective against DC3000 expressing AvrRps4
