(1. National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; 2. Chinese Medicinal Material Research Institute of Yunnan Agricultural University, Yunnan Provincial Center for Chinese Medicinal Material GAP Technology, Kunming 650201, China; 3. China Academy of Agricultural Science, Beijing 100094, China; 4. CSIRO Plant Industry, Qld 4068, Australia)