About the Authors

Qingyun Diao

Affiliations Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Haidian District, Beijing, P. R. China, Key Laboratory of Pollinating Insect Biology, Ministry of Agriculture, Haidian District, Beijing, P. R. China

Chunsheng Hou

houchunsheng@caas.cn

Affiliations Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Haidian District, Beijing, P. R. China, Key Laboratory of Pollinating Insect Biology, Ministry of Agriculture, Haidian District, Beijing, P. R. China

Competing Interests

The authors have declared that no competing interests exist.