Figure 3.

Structural variation map of mitochondrial genomes of 138A and 138B. The inner circle is the 138B genome, and the outer circle is the 138A genome. Collinear: the same linear region; Translocation: the area of translocation; Inversion: the area of inversion; Tran + Inver: the area of translocation and inversion; Insertion: the insertion region with a length greater than or equal to 50 bp; Deletion: the deletion region with length greater than or equal to 50 bp; Complex InDel: an area that cannot be compared, but corresponds to a position; Forward_chain: forward chain of the genome sequence, at which time the gene coordinates increase in a clockwise direction; Reverse_chain: the reverse chain of the genome sequence in which the genetic coordinates increase counterclockwise.