Fig. 1
From: Sperm DNA damage compromises embryo development, but not oocyte fertilisation in pigs
A Correlation heatmap of sperm quality parameters (including sperm morphology, motility and viability) and global DNA damage, double- (DSB) and single-SDF (SSB). B Correlation heatmap of in vitro fertility outcomes evaluated on day 2 (D2) and Day 6 (D6) and global DNA damage, DSB and SSB. Semen samples of 24 AI-boars split in three aliquots: the first was used to assess sperm quality after semen samples arrived at the laboratory, the second was used to perform in vitro fertility procedures, and the third was used to evaluate alkaline and neutral Comet. The colour saturation of red to blue represents the Pearson correlation coefficients (R) from 1 to − 1, respectively. Significant correlations (P < 0.05) are marked with *