Research articleOnline nowOpen access 1Zhengzhou Fruit Research Institute, National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan 450000, China 2Institute of Western Agriculture, Chinese Academy of Agricultural Sciences, Changji, Xinjiang, China 3Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, Xinxiang, Henan, China 4National Horticulture Germplasm Resources Center of China (NPGRC),...