1. Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, 445000, P.R. China
2. The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
3. Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, P.R. China
4. Department of Biology, University of Saskatchewan, Saskatoon, SK S7N5E2, Canada