About the Authors

Yoshihisa Hirakawa

Affiliation Canadian Institute for Advanced Research and Department of Botany, University of British Columbia, Vancouver, Canada

Alexis Howe

Affiliation Canadian Institute for Advanced Research and Department of Botany, University of British Columbia, Vancouver, Canada

Erick R. James

Affiliation Canadian Institute for Advanced Research and Department of Botany, University of British Columbia, Vancouver, Canada

Patrick J. Keeling

pkeeling@mail.ubc.ca

Affiliation Canadian Institute for Advanced Research and Department of Botany, University of British Columbia, Vancouver, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YH PJK. Performed the experiments: YH AH ERJ. Wrote the paper: YH PJK.