Fig. 5From: Strigolactone synthesis is ancestral in land plants, but canonical strigolactone signalling is a flowering plant innovationOptimal phylogeny for LBO family. Maximum likelihood (ML) tree with the amino acid dataset under the PROTCATLGX model in RAxML. Topology rooted with the DOXC55 clade. The fully labelled phylogeny is shown in Additional file 13ABack to article page