
Example of a bidirected dBG (Gbid(K)) (panel A) and a doubled dBG (Gdbl(K)) (panel B) on the same underlying set of k-mers K = {CAC, AAC, ACT, CTA, ATA}. Each vertex-side in Gbid(K) and each in- and outside of a vertex in Gdbl(K) is numbered with the corresponding degree. All maximal unitigs are shown using a long, filled rectangle with an arrow. The maximal unitigs of Gbid(K) are color-coded so that red is Bno-loop, dark green is Blast-loop, and light green is Bfirst-loop. The maximal unitigs of Gdbl(K) are color-coded so that dark red is Dnon-pal and blue is Dpal. Self-mirror edges in Gdbl(K) are shown in blue.











