About the Authors

A. Lovisa S. Gustafsson

lovisa.gustafsson@nhm.uio.no

Affiliation National Centre for Biosystematics, Natural History Museum, University of Oslo, Oslo, Norway

Inger Skrede

Affiliation Microbial Evolution Research Group (MERG), Department of Biosciences, University of Oslo, Oslo, Norway

Heather C. Rowe

Affiliation Botany Department, University of British Columbia, Vancouver, Canada

Galina Gussarova

Affiliations National Centre for Biosystematics, Natural History Museum, University of Oslo, Oslo, Norway, Botany Department, Faculty of Biology and Soil Science, St Petersburg State University, St Petersburg, Russia

Liv Borgen

Affiliation National Centre for Biosystematics, Natural History Museum, University of Oslo, Oslo, Norway

Loren H. Rieseberg

Affiliation Botany Department, University of British Columbia, Vancouver, Canada

Christian Brochmann

Affiliation National Centre for Biosystematics, Natural History Museum, University of Oslo, Oslo, Norway

Christian Parisod

Affiliations National Centre for Biosystematics, Natural History Museum, University of Oslo, Oslo, Norway, Laboratory of Evolutionary Botany, Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ALSG CB CP GG LB. Analyzed the data: ALSG IS HR GG LB LR CB CP. Wrote the paper: ALSG IS HR GG LB LR CB CP. Molecular analyses – lab work: ALSG CP. Linkage mapping and QTL analysis ALSG HCR IS LHR.