About the Authors
Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America
Department of Cell and Molecular Biology, Uppsala University, Uppsala, Sweden
The authors have declared that no competing interests exist.
Conceived and designed the experiments: AMJ MEP PBS ÖC. Analyzed the data: AMJ MEP ÖC. Contributed reagents/materials/analysis tools: AMJ MEP PBS. Wrote the paper: AMJ MEP PBS ÖC.