1. National Maize Improvement Center of China; Beijing Key Laboratory of Crop Genetic Improvement; Key Laboratory of Crop Heterosis and Utilization; Ministry of Education (MOE); China Agricultural University; Beijing 100193 China
2. Department of Vegetable Sciences; Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops; China Agricultural University; Beijing 100193 China
3. Shanghai Centre for Plant Stress Biology; Chinese Academy of Sciences; Shanghai 201602 China
4. University of Chinese Academy of Sciences; Beijing 100049 China