About the Authors
School of Life Science, East China Normal University, Shanghai, China
Institute of Zoology and Graduate University, Chinese Academy of Sciences, Beijing, China
School of Biological and Chemical Sciences, Queen Mary, University of London, London, United Kingdom
School of Biological Sciences, University of Bristol, Bristol, United Kingdom
The authors have declared that no competing interests exist.
Conceived and designed the experiments: SZ GL. Performed the experiments: GL JW. Analyzed the data: SR GL. Contributed reagents/materials/analysis tools: SZ. Wrote the paper: GJ SR.