Project description:High mobility group (HMG) proteins play an important role in regulation of gene transcription through modulate the structure of DNA. In this study, OsHMGB707, a HMG gene localized in rice drought resistance QTL interval, was isolated and the function on rice stress resistance was identified. Overexpression of OsHMGB707 significantly enhanced the drought resistance of the transgenic rice plants, whereas the OsHMGB707-RNAi transgenic rice plants exhibited slightly decrease in drought stress tolerance. To search the downstream genes regulated by OsHMGB707, we performed microarray analysis of the OsHMGB707-overexpressing, OsHMGB707-RNAi and wild-type plants under both normal conditions using Affymetrix Rice Genome Genechip. 21-day-old plants of the OsHMGB707-overexpressing line OE1, OsHMGB707-RNAi line RNAi1 as well as the wild-type plants were used in the normal condition.
Project description:A transcription factor CYTOKININ-RESPONSIVE GATA FACTOR 1 (CGA1) regulates chloroplast development in rice (Oryza sativa) through modifying the expression of important nuclear expressed, chloroplast localized genes. A transcriptome analysis was done in wild type plants and transgenic rice over-expressing this OsCGA1 to identify the set of genes with altered expression. RNA was extracted from leaves of 4-wk old wild type and OsCGA1 overexpressing rice plants and hybridized to Affymetrix Rice Genome Array. Three biological replicates were sampled for wild type and OX plants.
Project description:Expression data from two weeks old Arabidopsis wild-type (Columbia-0) and transgenic plant overexpressing NHRGP (at4g16790) plants (OE-N6)
