The circos plot of 110 distinct non-ref NUMTs. From the outside: (1) mtDNA genes (left) and nDNA chromosome (right); (2) frequencies of non-ref NUMTs reported in Wei W. et al. [ 38 ]; (3) frequencies of non-ref NUMTs reported in Dayama G. et al. [ 39 ]; (4) frequencies of non-ref NUMTs detected in this study; and (5) arrows representing the insertion of mtDNA segments to the breakpoints of nDNA.
