1. Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Ministry of Agriculture for Germplasm Resources Conservation and Utilization of Cassava, Danzhou 571737, China
2. College of Agronomy, Hainan University, Haikou 571101, China
3. Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
4. Genetic Resources and Biotechnology, Embrapa, Brasilia, 70770-917 Brazil