About the Authors

Pavol Genzor

Affiliations Department of Embryology, Carnegie Institution for Science, Baltimore, Maryland, United States of America, Department of Biology, Johns Hopkins University, Baltimore, Maryland, United States of America

Alex Bortvin

bortvin@ciwemb.edu

Affiliation Department of Embryology, 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: PG AB. Performed the experiments: PG. Analyzed the data: PG AB. Wrote the paper: PG AB.