About the Authors
Institute of Plant Biology & Zürich-Basel Plant Science Center, University of Zürich, Zürich, Switzerland
Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Ireland
The authors have declared that no competing interests exist.
The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: AS UG. Performed the experiments: AS DK CB. Analyzed the data: AS SW CB UG. Contributed reagents/materials/analysis tools: SW AS KV. Wrote the paper: AS UG. Transcriptome data analysis: SW AS.