Similarly, autosomal dominant mutations in COL2A1 are responsible for a number of osteochondrodysplasias (Barat-Houari et al. 2016), and mutations in both COL2A1 and TRIP11 are implicated in Type 2 and Type 1A achondrogenesis, respectively. This evidence concerns the gene COL2A1 and osteochondrodysplasia.