
Figure 1.
The display of a phylogenetic tree in a tree–child network. (A) A tree–child network with two reticulate nodes on the taxa (a to d). (B) A subtree that was obtained by the removal of the dashed incoming edges of the reticulate nodes in the network. (C) A tree displayed in the network, which was obtained from the subtree in B by removing all degree-2 nodes through combining their unique incoming and outgoing edges into an edge.











