1. Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Provincial Engineering Research Center for Potatoes, Collaborative Innovation Center of Grain and Oil Crops in South China, Hunan Agricultural University, Changsha, Hunan, 410128 P.R. China
2. Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, 850 Lincoln Road, P.O. Box 20280, Fredericton, NB, E3B 4Z7, Canada
3. Agricultural Certification Services Inc., 1030 Lincoln Road, Fredericton, NB, E3B 8B7, Canada
4. College of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201 P.R. China