About the Authors

Luis Cardona
Irene Álvarez de Quevedo


Affiliation IRBIO and Department of Animal Biology, Faculty of Biology, University of Barcelona, Barcelona, Spain

Assumpció Borrell
Alex Aguilar

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LC IA AA. Performed the experiments: IA LC. Analyzed the data: LC IA. Contributed reagents/materials/analysis tools: AA AB LC IA. Wrote the paper: LC IA.