Fig. 4: Copy number profile of myeloma precursor condition and multiple myeloma (MM).

Cumulative copy number profile of all patients with either WGS or SNP array data available. Cases were grouped according to their clinical stage: stable (N = 81) and progressive (N = 19) myeloma precursor condition and MM (N = 228). Red and blue bars reflect chromosomal gain and loss, respectively. Yellow and green lines on the top of each graph represent GISTIC peaks with a significantly different prevalence across the three stages (yellow: Fisher’s exact test p < 0.05 and green: q < 0.1). On the first, second and third cumulative plots we reported the significant difference between: stable myeloma precursor condition vs. MM, stable myeloma precursor condition vs. progressive myeloma precursor condition and progressive myeloma precursor condition vs. MM, respectively. MGUS: monoclonal gammopathy of undetermined significance, SMM: smoldering multiple myeloma, chr: chromosome.