About the Authors

Micah T. Webster

Affiliation Department of Embryology, The Carnegie Institution for Science, Baltimore, Maryland, United States of America

Chen-Ming Fan

fan@ciwemb.edu

Affiliation Department of Embryology, The Carnegie Institution for Science, Baltimore, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MTW CMF. Performed the experiments: MTW CMF. Analyzed the data: MTW CMF. Contributed reagents/materials/analysis tools: MTW CMF. Wrote the manuscript: MTW CMF.