COL2A1 and achondrogenesis: The region contains the COL2A1 gene, mutations in which have been shown to cause various skeletal defects in mammals, such as achondrogenesis type II in humans (Forzano et al., 2007; Körkkö et al., 2000) and bulldog‐type dwarfism in cattle (Daetwyler et al., 2014; Häfliger et al., 2019).