1. Agro-Biotechnology Research Institute, Jilin Academy of Agriculture Sciences, Changchun, China
2. Jilin Provincial Key Laboratory of Agricultural Biotechnology, Jilin Academy of Agriculture Sciences, Changchun, China
3. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
4. Department of Research Centers, Western Triangle Agricultural Research Center, Montana State University, Conrad, MT