About the Authors

Jun Zhou

Affiliation Department of Biology, University of Rochester, Rochester, New York, United States of America

Thomas H. Eickbush

eick@mail.rochester.edu

Affiliation Department of Biology, University of Rochester, Rochester, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JZ THE. Performed the experiments: JZ. Analyzed the data: JZ. Wrote the paper: JZ THE.