#Jiayang Li and Hong Yu’s team used #CRISPR promoter saturation editing on OsHMA3 to disrupt repressor OsRF2b binding, creating a transgene-free knock-up allele that reduces rice grain cadmium by 40.7% with zero yield penalty. 🌾🤖 #RiceGenomics #PlantBiotech2026 #CadmiumSafety #PromoterEditing