1. Department of Plant Pathology and the Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management, 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. Rice Research Institute, Shandong Academy of Agricultural Science, Jinan 250100, Shandong Province, China
4. Department of Plant Pathology, Ohio State University, Columbus, Ohio 43210