Genotyping of 94 low/int-1 MDS patients using a panel of 26 genes. (A) Repartition of WHO subtypes. (B) Number of patients of each WHO subtype having 0 to 6 mutations. (C) Number of patients of each WHO subtype exhibiting genetic or cytogenetic lesions. SF3B1, TET2, DNMT3A, and ASXL1 mutations were the most frequent genetic events in the cohort.