1. Institute of Nuclear Agricultural ScienceCollege of Agriculture and BiotechnologyZhejiang UniversityHuajiachi CampusHangzhou310029China
2. Department of PotatoInstitute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing100081China
3. Key Laboratory of Biology and Genetic Improvement of Tuber and Root CropMinistry of AgricultureBeijing100081P.R. China