[1] Univ Wurzburg, Biozentrum, Dept Human Genet, D-97074 Wurzburg, Germany
[2] Univ Wurzburg, Dept Physiol Chem 1, Wurzburg, Germany
[3] Max Planck Inst Mol Genet, Berlin, Germany
[4] Fed Agr Res Ctr, Dept Anim Sci & Anim Behav, Mariensee, Germany
[5] Tech Univ Munich, Dept Anim Breeding, D-8050 Freising Weihenstephan, Germany
[6] Univ Bonn, Dept Anim Breeding, D-5300 Bonn, Germany
[7] Univ Hamburg, Heinrich Pette Inst Expt Virol & Immunol, Dept Cellular Immunol, D-2000 Hamburg, Germany
[8] Roslin Inst, Dept Genom & Bioinformat, Edinburgh, Midlothian, Scotland
[9] Brunel Univ, Mol Biol Sci, Uxbridge UB8 3PH, Middx, England
[10] Inst Anim Hlth, Compton Lab, Dept Mol Biol, Compton, England
[11] Univ Sheffield, Dept Anim & Plant Sci, Sheffield S10 2TN, S Yorkshire, England
[12] Univ Wageningen & Res Ctr, Dept Anim Sci, Wageningen, Netherlands
[13] INRA, F-31931 Toulouse, France
[14] INRA, F-35042 Rennes, France
[15] Inst Embryol Cellulaire & Mol, Nogent Sur Marne, France
[16] Hebrew Univ Jerusalem, Fac Agr Food & Environm Sci, IL-91905 Jerusalem, Israel
[17] Agr Res Ctr, Dept Anim Prod, SF-31600 Jokioinen, Finland
[18] USDA, Avian Dis & Oncol Lab, E Lansing, MI USA
[19] Univ Calif Davis, Dept Anim Sci, Davis, CA 95616 USA
[20] Univ Delaware, Dept Anim & Food Sci, Newark, DE USA
[21] Nihon Univ, Dept Agr & Biol Chem, Fujisawa, Kanagawa, Japan