DGAT1 and Charcot-Marie-Tooth disease type 3: Although the MAFs of the three closest SNPs to DGAT1 gene are high (MAF = 0.44–0.47) in DSN (Supplementary Table 10), we observed that the actual variant causing the A232K substitution is very rare having a MAF of 0.02 (preliminary results of sequencing data from 57 DSN cattle).