[1] N Carolina State Univ, Coll Vet Med, Dept Mol Biomed Sci, Raleigh, NC 27606 USA
[2] Anim Hlth Trust, Ctr Prevent Med, Oncol Res Grp, Newmarket, Suffolk, England
[3] Wellcome Trust Sanger Inst, Cambridge, England
[4] Fred Hutchinson Canc Res Ctr, Div Clin Res, Seattle, WA 98104 USA
[5] Fred Hutchinson Canc Res Ctr, Human Biol Div, Seattle, WA 98104 USA
[6] Fac Med, UMR 6061 CNRS, Rennes, France