1. National-Local Joint Engineering Research Center on Gemplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China
2. College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming 650201, China
3. Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14850, USA