About the Authors

Tsuyoshi Momose

Affiliation Université Pierre et Marie Curie (Paris VI), Centre National de la Recherche Scientifique Unité 7009 “Biologie du Développement,” Observatoire Océanologique, Villefranche-sur-Mer, France

Evelyn Houliston

To whom correspondence should be addressed. E-mail: houliston@obs-vlfr.fr

Affiliation Université Pierre et Marie Curie (Paris VI), Centre National de la Recherche Scientifique Unité 7009 “Biologie du Développement,” Observatoire Océanologique, Villefranche-sur-Mer, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

TM conceived, designed, and performed the experiments. TM and EH analyzed the data. EH wrote the paper.