Fig. 4From: Persistence of parental age effect on somatic mutation rates across generations in ArabidopsisA-B: FS mutation rates as a function of (A) fixed, (B) increasing parental age across generations. The numbers at the bottom of the graph show the number of seedlings analyzed. P values were corrected for multiple testing. No asterisk denotes no significant difference. *, P < 0.05; **, P < 0.01; ***, P < 0.001Back to article page