Figure 2From: Inferring polyploid phylogenies from multiply-labeled gene treesAdding clusters. (a) A MUL-tree T used to illustrate the difficulties that can occur when adding a cluster. (b)-(c) The cluster {a1, a2} can be added in two different ways to the MUL-tree T. (d) The cluster {a2, a3} can be added to the MUL-tree in (a), but in a unique way.Back to article page