In addition to QTLs, mutations were identified in these areas, presented in the catalog/compendium of inherited disorders OMIA: OMIA 001718-9823: dwarfism and Schmid metaphyseal chondrodysplasia in Sus scrofa (DIAS0001377, SSC1); OMIA 002210-9823: hypothyroidism, congenital and DUOX2-related disorders in Sus scrofa (MARC0108203, SSC1); OMIA 001401-9823: Waardenburg syndrome and type 2A in Sus scrofa (ASGA0057575, SSC13). The gene discussed is DUOX2; the disease is hypothyroidism.