Fig. 2
From: The distance and median problems in the single-cut-or-join model with single-gene duplications

(Left) A tandem duplicate of gene g is introduced. The adjacency \(g_hy_t\) has been replaced by \(g'_hy_t\) and an adjacency \(g_hg'_t\) has been introduced. In this case the total number of operations to obtain D from A is 5. Note that the number of cut and join operations is dependent on the adjacencies of the gene g in A and D. (Right) A floating duplicate of gene g is introduced. An adjacency \(g'_hg'_t\) has been added. In this case the total number of operations to obtain D from A is 5