Figure 7
From: Reconstruction of ancestral gene orders using intermediate genomes
Number of AM- and BM-cycles in an AB-cycle of size 2 n with n non-crossing M-edges. A-, B- and M -edges are drawn in green, blue and orange, respectively. (a) An AB-cycle of size 2 has one AM- and one BM-cycle. An AB-cycle of size n, shown in (b), has one more AM-cycle than an AB-cycle of size n − 2, with the same number of BM-cycles, shown in (c).