About the Authors

Xianshan Wu

Affiliation National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China

Xiaoping Chang

Affiliation National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China

Ruilian Jing

jingrl@caas.net.cn

Affiliation National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RJ. Performed the experiments: XC XW. Analyzed the data: XW. Contributed reagents/materials/analysis tools: RJ XC. Wrote the paper: XW.