Fig. 2From: SG-ADVISER mtDNA: a web server for mitochondrial DNA annotation with data from 200 samples of a healthy aging cohort a Histogram showing the distribution of the Wellderly cohort heteroplasmic variants (HFÂ >Â 0.3) across the mitochondrial DNA genome. The loci are numerically sorted according the number of variants. As a reference, we display also values for the GenBank cohort. b Scatter plot of the locus length vs. the frequency of heteroplasmic mutations at the locus. Note that the number of mutations correlates almost linearly with the locus size, except for the MT-DLOOP Back to article page