The callipyge mutation and other genes that affect muscle hypertrophy in sheep Noelle E. Cockett, Maria A. Smit, Christopher A. Bidwell, Karin Segers, Tracy L. Hadfield, Gary D. Snowder, Michel Georges and Carole Charlier Genet. Sel. Evol., 37 Suppl. 1 (2005) S65-S81 DOI: 10.1051/gse:2004032