Rice (Oryza sativa) is the most important crop and feeds more than half of the world population. The architecture of rice, including height, leaf inclination, and tiller number, is important for rice planting and yield. Plant hormone, brassinosteroids (BR), plays crucial roles in modulating plant architecture and seed yield. But BR cannot be applied in agriculture production directly because BR regulated multiple processes and could not be transcriptional regulated in different tissues. This article is protected by copyright. All rights reserved.