Project description:Expression profiles of MicroRNA and SiRNA of Arabidopsis thaliana Col-0 and transgenic plants with constitutive expression of the chimeric receptors NRG1 grown at different temperature To reveal the underlying molecular mechanism of de-cosuppression with memory by high temperature in Arabidopsis, we performed the expression profiles of microRNA and SiRNA in transgenic plants with constitutive expression of the chimeric receptors NRG1 and wide type Col-0 grown at different temperature using the Custom LC Sciences Arabidopsis microRNA and SiRNA array. Keywords: high temperature, de-cosuppression, MicroRNA, SiRNA
Project description:Transcriptional profiling of Arabidopsis thaliana 12-days old seedlings comparing Col-0 wild type with transgenic plants with altered expression of dual-targetting plastid/mitochondrial organellar RNA-polymerase RPOTmp. Transgenic plants used for experiment were: overexpressor plants obtained by transformation of Col-0 WT plants with genetic constructs created in [Tarasenko et al., 2016] contained catalytic part of RPOTmp enzyme with transit peptides of RPOTm (mitochondrial) and RPOTp (plastid) by agrobacterial transformation; plants with complementation of RPOTmp functions in mitochondria or chloroplasts obtained from transformation of GABI_286E07 rpotmp knockout-mutant plants with genetic constructs created in [Tarasenko et al., 2016]. Goal was to determine the effects of RPOTmp knockout/overexpression on global Arabidopsis thaliana gene expression.
Project description:DNA replication programs have been studied extensively in yeast and animal systems, where they have been shown to correlate with gene expression and certain epigenetic modifications. Despite the conservation of core DNA replication proteins, little is known about the replication proteins of plants. We used flow cytometry and isothermal Nimblegen arrays to profile DNA replication of Arabidopsis chromsome 4 during early, mid and late S phase. Replication timing profiles for early and mid S phase were similar and encompassed the majority of the euchromatin. Late S phase exhibited a distinctly different profile that includes essentially all of the heterochromatin.
