Fig. 3From: Locus-aware decomposition of gene trees with respect to polytomous species treesAn example of a decomposition of a gene tree G into two trees \((a_1,b_1)\) and \((a_2,b_2)\) for which evolutionary scenarios require one additional duplication located on the internal node of the decomposition forest (here the root of G). The scenario with the minimal number of duplications (here 2) is depicted on the left in the form of the embedding of G into S [12]Back to article page