1. State Key Laboratory of Crop Genetics and Germplasm Enhancement; Nanjing Agricultural University; Nanjing P. R. China
2. College of Agronomy; Hunan Agricultural University; Collaborative Innovation Center of Grain and Oil crops in South China; Changsha P. R. China
3. State Key Laboratory of Hybrid Rice; Hunan Hybrid Rice Research Center; Changsha P. R. China
4. Hunan Provincial Key Laboratory of Phytohormones; Hunan Agricultural University; Changsha P. R. China