Fig. 1From: Genomic duplication problems for unrooted gene treesGene and species tree reconciliation. Left: the lca-mapping between a gene tree G and a species tree S shown for internal nodes. The decoration of nodes indicates gene duplication events. Right: an embedding of G into S. To reconcile these trees 6 gene duplications and 17 gene losses (not shown) are required, i.e., D(G,S)=6 and DL(G,S)=23. See also G 4∗ in Fig. 3 Back to article page