Fig. 2
From: The extrachromosomal circular DNA atlas of aged and young mouse brains

EccDNA characteristics in the mouse brain. (a) Circos plot demonstrating the genome-wide distribution of eccDNA in both the Aged and Young groups. (b,c) Violin plots demonstrating the distribution of eccDNA per million mapped reads (EPM) across six brain structures for both groups. (d) Bar plot demonstrating the mitochondrial abundance in both the Aged and Young groups. The quantification was performed using the split-reads CPM (counts per million) normalization method.