A novel intronic single nucleotide polymorphism in the myosin heavy polypeptide 4 gene is responsible for the mini-muscle phenotype characterized by major reduction in hind-limb muscle mass in mice.
Kelly SA, Bell TA, Selitsky SR, Buus RJ, Hua K, Weinstock GM, Garland T Jr, Pardo-Manuel de Villena F, Pomp D. Genetics. 2013 Dec; 195(4):1385-95. Epub 2013 Sep 20.