library_construction_protocol: ChIP experiments were performed using the EpiQuiK Plant ChIP kit (Epigentek) as described in the manufacturer's protocol. Approximately 1.5 g of leaf tissue was harvested from transgenic plants and WT plants, respectively. Chromatin was immunoprecipitated with an HA antibody, and a goat anti-mouse IgG antibody was used as the negative control. The purified DNA was used for ChIP-seq library preparation. The library was constructed by Novogene Corporation (Beijing, China). Subsequently, pair-end sequencing of sample was performed on Illumina platform (Illumina). Library quality was assessed on the Agilent Bioanalyzer 2100 system.