1. School of Horticulture and Plant Protection, International Research Laboratory of Agriculture and Agri‐Product Safety, Key Laboratory of Plant Functional Genomics of the Ministry of Education Yangzhou University Yangzhou 225009 China
2. Center of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture Nanjing Agricultural University Nanjing 210095 China