About the Authors
- Daniel H. Chitwood
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* E-mail: dchitwood@danforthcenter.org
Affiliation Donald Danforth Plant Science Center, St. Louis, Missouri, United States of America
Competing Interests
The author has declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: DHC. Performed the experiments: DHC. Analyzed the data: DHC. Wrote the paper: DHC.