1. State Key Laboratory of Tree Genetics and Breeding, Beijing, PR China
2. Research Institute of Forestry, Chinese Academy of Forestry, Beijing, PR China
3. Key Laboratory of Tree Breeding and Cultivation, State Forestry and Grassland Administration, Beijing, PR China
4. National Innovation Alliance of Catalapa Bungei, Beijing, PR China
5. Northeast Forestry University, Harbin, PR China