About the Authors

Danna G. Eickbush

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

William D. Burke

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

Thomas H. Eickbush

thomas.eickbush@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: DGE THE. Performed the experiments: DGE WDB. Analyzed the data: DGE THE. Contributed reagents/materials/analysis tools: DGE WDB. Wrote the manuscript: DGE WDB THE.