1. Center of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu 210095, People’s Republic of China
2. Pomology Research Institute, Shanxi Academy of Agricultural Sciences, Jinzhong, Shanxi 030815, People’s Republic of China
3. Genepioneer Biotechnologies Company, Limited, Nanjing, Jiangsu 210014, People’s Republic of China