About the Authors
- Andy M. Reynolds
- Rothamsted Research, Harpenden, United Kingdom
- Mark A. Frye
- University of California Los Angeles, Department of Physiological Science, Los Angeles, California, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: MF. Performed the experiments: MF. Analyzed the data: AR. Wrote the paper: AR MF.