1. State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
2. Ministry of Agriculture, Key Laboratory of Soil Microbiology, China Agricultural University, Beijing, China
3. Department of Microbiology and Immunology, China Agricultural University, Beijing, China
4. Department of Molecular Biology, College of Biological Sciences, China Agricultural University, Beijing, China
5. Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, China