1. State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
2. MOA Key Laboratory of Soil Microbiology, College of Biological Sciences, China Agricultural University, Beijing, China
3. Rhizobium Research Center, College of Biological Sciences, China Agricultural University, Beijing, China
4. Key Laboratory of Coastal Biology and Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China