1. Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City and Southwest University, Chongqing Key Laboratory of Crop Quality Improvement, College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China
2. Engineering Research Center of South Upland Agriculture of Ministry of Education, Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China