1. Unit of Animal Genomics; GIGA-R and Faculty of Veterinary Medicine; University of Liège; B-4000 Liège Belgium
2. Institut National de la Recherche Agronomique; UMR CBGP (INRA-IRD-CIRAD-Montpellier SupAgro); F-34988 Montferrier sur Lez Montpellier France