1. Institute of Apicultural Research, Chinese Academy of Agricultural Sciences , Beijing, China
2. Key Laboratory of Pollinating Insect Biology, Ministry of Agriculture , Beijing, China
3. Apiculture Sciences Institute of Jilin Province , Jilin, China
4. Apiculture Sciences Institute of Gansu Province , Tianshui, China
5. Honey bee Apiaries of Liaoning Province , Xingcheng, China
6. College of Animal Sciences, Zhejiang University , Hangzhou, China
7. Apiculture Management Center of Xinjiang Uygur Autonomous Region , Urumqi, China
8. Honey bee Apiaries of Shanxi Jinzhong , Jinzhong, China
9. Yunnan Academy of Agriculture Sciences , Honghe, China
10. College of Animal Sciences, Yangzhou University , Yangzhou, China
11. Chongqing Academy of Animal Sciences , Chongqing, China
12. Henan Institute of Science and Technology , Xinxiang, China
13. Apiculture Management Center of Sichuan Province , Chengdu, China
14. Mudanjiang Branch of Heilongjiang Academy of Agriculture Sciences , Mudanjiang, China