1. Scientific Observation and Experiment Station of Fruits in Huang-huai Area, Ministry of Agriculture, Shandong Institute of Pomology, Taian, Shandong, People’s Republic of China
2. U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Molecular Plant Pathology Laboratory, Beltsville, Maryland, USA
3. Key Laboratory for Fruit Biotechnology Breeding of Shandong Province, Shandong Institute of Pomology, Taian, Shandong, People’s Republic of China