TOE1/TOE2 Interacting with GIS to Control Trichome Development in .

Trichomes are common appendages originating and projecting from the epidermal cell layer of most terrestrial plants. They act as a first line of defense and protect plants against different types of adverse environmental factors. GL3/EGL3-GL1-TTG1 transcriptional activator complex and GIS family genes regulate trichome initiation through gibberellin (GA) signaling in Here, our novel findings show that TOE1/TOE2, which are involved in developmental timing, control the initiation of the main-stem inflorescence trichome in Phenotype analysis showed that the transgenic line increases trichome density of the main-stem inflorescence in , while , , and have the opposite phenotypes. Quantitative RT-PCR results showed that / positively regulate the expression of and In addition, protein-protein interaction analysis experiments further demonstrated that TOE1/TOE2 interacting with GIS/GIS2/ZFP8 regulate trichome initiation in . Furthermore, phenotype and expression analysis also demonstrated that TOE1 is involved in GA signaling to control trichome initiation in . Taken together, our results suggest that TOE1/TOE2 interact with GIS to control trichome development in This report could provide valuable information for further study of the interaction of TOE1/TOE2 with GIS in controlling trichome development in plants.