1. Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
2. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
3. Institute of Vegetable Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China