About the Authors

Michael Stich

Affiliation Department of Molecular Evolution, Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, Madrid, Spain

Susanna C. Manrubia

Affiliation Department of Molecular Evolution, Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, Madrid, Spain

Ester Lázaro

lazarolm@inta.es

Affiliation Department of Molecular Evolution, Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, Madrid, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MS SCM EL. Performed the experiments: MS. Analyzed the data: MS SCM EL. Wrote the paper: EL.