1. Key Laboratory of Crop Heterosis and Utilization of the Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
2. State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
3. Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
4. International Rice Research Institute, Metro Manila 1301, Philippines