1. State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural University at Wenjiang 211 Huimin Road Chengdu Sichuan 611130 China
2. College of Environmental Science & Engineering China West Normal University 1 Shida Road Nanchong Sichuan 637002 China
3. Institute of South Subtropical Crops Chinese Academy of Tropical Agricultural Sciences Zhanjiang Guangdong 524013 China