In the TCGA ovarian cancer dataset, we observed that CCNE1 expression levels and CCNE1 copy number status correlated negatively with ploidy-score, aneuploidy-scores, and genome doubling, while both showed a negative correlation to the PARPi7-score and different HRD-scores (Supplementary Fig. 1a). This evidence concerns the gene CCNE1 and ovarian cancer.