About the Authors

Chao Wang

Contributed equally to this work with: Chao Wang, Zhonghua Liu

Affiliations State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China, Graduate School of the Chinese Academy of Sciences, Beijing, China

Zhonghua Liu

Contributed equally to this work with: Chao Wang, Zhonghua Liu

Affiliation State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China

Xun Huang

xhuang@genetics.ac.cn

Affiliation State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XH CW. Performed the experiments: CW ZL. Analyzed the data: CW ZL XH. Wrote the paper: XH CW.