About the Authors

Joana M. Ramis

Affiliation Wellcome Trust/Cancer Research UK Gurdon Institute and Department of Zoology, University of Cambridge, Cambridge, United Kindgom

Clara Collart

Affiliation Wellcome Trust/Cancer Research UK Gurdon Institute and Department of Zoology, University of Cambridge, Cambridge, United Kindgom

James C. Smith

To whom correspondence should be addressed. E-mail: jim@gurdon.cam.ac.uk

Affiliation Wellcome Trust/Cancer Research UK Gurdon Institute and Department of Zoology, University of Cambridge, Cambridge, United Kindgom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JS CC JR. Performed the experiments: CC JR. Analyzed the data: CC JR. Wrote the paper: JS CC JR.