About the Authors

Manuel Vera

Affiliation Departamento de Genética, Facultad de Veterinaria. Universidad de Santiago de Compostela, Lugo, Spain

Paulino Martínez

paulino.martinez@usc.es

Affiliation Departamento de Genética, Facultad de Veterinaria. Universidad de Santiago de Compostela, Lugo, Spain

Laura Poisa-Beiro

Affiliation Instituto de Investigaciones Marinas, CSIC, Vigo, Spain

Antonio Figueras

Affiliation Instituto de Investigaciones Marinas, CSIC, Vigo, Spain

Beatriz Novoa

Affiliation Instituto de Investigaciones Marinas, CSIC, Vigo, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Wrote the paper: PM. Collaborated on the design of experiments and analysis of results: AF BN. Main design of experiments: PM. Performed all sequence and fragment analyses: MV. Carried out family crosses and managed biological material including DNA sampling, PCR reactions and cloning for sequencing: LP-B. Performed evolutionary analysis with statistical packages: MV. Provided all biological material and reagents for crosses, DNA extraction, PCR and cloning: BN. Provided all reagents and equipment for sequence analysis: PM. Collaborated on specific sections of the manuscript and revised the manuscript: AF BN MV.