About the Authors
- Martin Ackermann, Lin Chao
- Division of Biological Sciences, University of California San Diego, La Jolla, California, United States of America
- Martin Ackermann
- ETH Zürich, Theoretical Biology, Zurich, Switzerland
The authors have declared that no competing interests exist.
MA and LC conceived and designed the experiments. MA performed the experiments, analyzed the data, and wrote the paper.