About the Authors
Department of Biology, University of Oklahoma, Norman, Oklahoma, United States of America
Department of Biology, Indiana University, Bloomington, Indiana, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: SAG EV LC PC RSH. Performed the experiments: SAG EV LC RSH. Analyzed the data: SAG EV LC RSH. Contributed reagents/materials/analysis tools: LC PC. Wrote the paper: SAG LC RSH.