Figure 2
From: Reconciliation and local gene tree rearrangement can be of mutual profit
The events of the reconciliation DTL model (Definition 1). Each possible event is displayed for a node u of G and a node x of the subdivided species tree S′ on which u is mapped. Note that a same node u can be mapped to several nodes. As a result of the mapping of its nodes, the gene tree G, extended here with losses induced by the mapping (‡), is embedded in S′ (here dashed lines represent edges of G, and plain lines those of S′, grayed rectangular zones represent nodes of S′).