Figure 1
From: Approximating the double-cut-and-join distance between unsigned genomes
A breakpoint graph between two genomes. The input two genomes are A = {(o, a, c, d, o), (b, e), (o, f, g, o)} and B = {(a, b), (o, c, d, o), (o, e, o), (f, g)}. The solid dots, hollow circles and squares are vertices representing genes, the telomere markers of genome A and of genome B, respectively. The solid and dashed lines are used to represent black and gray edges, respectively.