RMRP and cartilage-hair hypoplasia: To compare the current knowledge about CHH genetics with this model, we searched our RNA-seq data for a list of 37 reported CHH genes (Fig. 4A), including the genes associated with both KS (i.e. anosmic phenotype) and normosmic CHH (Boehm et al., 2015; Bouilly et al., 2018; Howard et al., 2016; Xu et al., 2017; Richards et al., 2017; Kotan et al., 2018).