About the Authors

Gracia Zabala

Affiliation Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America

Lila O. Vodkin

l-vodkin@illinois.edu

Affiliation Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America

Competing Interests

United Soybean Board and the Illinois Soybean Association provided funding towards this study. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: GZ LV. Performed the experiments: GZ. Analyzed the data: GZ LV. Contributed reagents/materials/analysis tools: LV GZ. Wrote the paper: GZ LV.