Affiliation: | 1. Department of Evolution, Genomics and Systematics, Uppsala University, Norbyvägen 18D, S-752 36 Uppsala, Sweden.;2. Department of Anatomy and Physiology, Swedish University of Agricultural Sciences, S-750 07 Uppsala, Sweden.;3. Department of Animal and Aquacultural Sciences, Norwegian University of Life Science, P.O. Box 5003 N-1432 Ås, Norway. |