About the Authors

Chika C. Nwugo

Affiliation San Joaquín Valley Agricultural Sciences Center, Department of Agriculture, ARS, Parlier, California, United States of America

Yongping Duan

Affiliation U.S. Horticultural Research Laboratory, USDA, ARS, Fort Pierce, Florida, United States of America

Hong Lin

hong.lin@ars.usda.gov

Affiliation San Joaquín Valley Agricultural Sciences Center, Department of Agriculture, ARS, Parlier, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YPD HL . Performed the experiments: CCN HL YPD . Analyzed the data: CCN HL . Contributed reagents/materials/analysis tools: CCN HL . Wrote the manuscript: CCN HL YPD.