}\r
if ( gene_tree.getRoot().getNumberOfDescendants() == 2 ) {\r
gene_tree_branches_post_order.add( new PhylogenyBranch( gene_tree.getRoot().getChildNode1(), gene_tree\r
}\r
if ( gene_tree.getRoot().getNumberOfDescendants() == 2 ) {\r
gene_tree_branches_post_order.add( new PhylogenyBranch( gene_tree.getRoot().getChildNode1(), gene_tree\r