Boman et al. Genetics Selection Evolution 2010, 42:4 http://www.gsejournal.org/content/42/1/4 9. Kijas JW, McCulloch R, Edwards JEH, Oddy VH, Lee SH, Werf van der J: Evidence for multiple alleles effecting muscling and fatness at the Ovine GDF8 locus. BMC Genetics 2007, 8:80. 10. Laville E, Bouix J, Sayd T, Bibe B, Elsen JM, Larzul C, Eychenne F, Marcq F, Georges M: Effects of a quantitative trait locus for muscle hypertrophy from Belgian Texel sheep on carcass conformation and muscularity. J Anim Sci 2004, 82:3128-3137. 11. Hadjipavlou G, Matika O, Clop A, Bishop SC: Two single nucleotide polymorphisms in the myostatin (GDF8) gene have significant association with muscle depth of commercial Charollais sheep. Animal Genetics 2008, 39:346-353. doi:10.1186/1297-9686-42-4 Cite this article as: Boman et al.: Impact of two myostatin (MSTN) mutations on weight gain and lamb carcass classification in Norwegian White Sheep (Ovis aries). Genetics Selection Evolution 2010 42:4. Page 7 of 7 Submit your next manuscript to BioMed Central and take full advantage of: • Convenient online submission • Thorough peer review • No space constraints or color ﬁgure charges • Immediate publication on acceptance • Inclusion in PubMed, CAS, Scopus and Google Scholar • Research which is freely available for redistribution Submit your manuscript at www.biomedcentral.com/submit