About the Authors

Kari Saikkonen

kari.saikkonen@mtt.fi

Affiliation Plant Production Research, MTT Agrifood Research Finland, Jokioinen, Finland

Piippa R. Wäli

Affiliation Department of Biology, University of Oulu, Oulu, Finland

Marjo Helander

Affiliation Department of Biology, University of Turku, Turku, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KS PRW MH. Performed the experiments: KS PRW MH. Analyzed the data: KS PRW MH. Wrote the paper: KS PRW MH.