1. Institute of Reproductive Biology, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany.
2. Department of Evolutionary Genetics, Research Institute for Zoo and Wildlife Research (IZW), Alfred-Kowalke-StraƒÀe 17, 10315 Berlin, Germany.
3. University of Potsdam, Institute for Biochemistry and Biology, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany.
4. Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany.
5. Institute of Genetics and Biometry, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany.
6. German Federal Hybrid Breeding Programme (BHZP GmbH), An der Wassermuhle 8, 21368 Dahlenburg, Germany.
7. Department of Reproduction Biology, Research Institute for Zoo and Wildlife Research (IZW), Alfred-Kowalke-StraƒÀe 17, 10315 Berlin, Germany.