1. Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut (FLI), Neustadt-Mariensee, Germany
2. Department of Genomic and Applied Microbiology, Goettingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August-University of Goettingen, Goettingen, Germany
3. Zoetis, Kalamazoo, Michigan, USA