About the Authors

Wei Wei

Contributed equally to this work with: Wei Wei, XiaoGuang Qi

Affiliation Key Laboratory of Resource Biology and Biotechnology in Western China, College of Life Sciences, Northwest University, Xi’an, China

XiaoGuang Qi

Contributed equally to this work with: Wei Wei, XiaoGuang Qi

Affiliation Key Laboratory of Resource Biology and Biotechnology in Western China, College of Life Sciences, Northwest University, Xi’an, China

Paul A. Garber

Affiliation Anthropology Department, University of Illinois, Urbana, Illinois, United States of America

SongTao Guo

Affiliation Key Laboratory of Resource Biology and Biotechnology in Western China, College of Life Sciences, Northwest University, Xi’an, China

Pei Zhang

Affiliation Key Laboratory of Resource Biology and Biotechnology in Western China, College of Life Sciences, Northwest University, Xi’an, China

BaoGuo Li

baoguoli@nwu.edu.cn

Affiliations Key Laboratory of Resource Biology and Biotechnology in Western China, College of Life Sciences, Northwest University, Xi’an, China, Institute of Zoology, Shaanxi Academy of Sciences, Xi’an, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WW XGQ BGL. Performed the experiments: WW. Analyzed the data: WW. Contributed reagents/materials/analysis tools: STG PZ. Wrote the paper: WW PAG.