Additional file 3: of Evolution of strigolactone receptors by gradual neo-functionalization of KAI2 paralogues

The eu-KAI2 and DDK super-clades diverged early in land plant evolution. Nucleotide-level phylogenetic analysis implemented in PhyML on the D14/KAI2 family, minus charophyte and lycophyte KAI2 sequences (296 sequences). This analysis was performed using the full-length dataset (780 characters). Trees were rooted with liverwort KAI2 sequences. A) Phylogram showing the ‘most likely’ tree from PhyML analysis, labelled to show the high-order relationships between the major clades (as described in Table 2). B) Cladogram depicting the phylogenetic tree from A) in simplified form. Major clades and sub-clades (as listed in Table 2) are collapsed. Numbers associated with internal branches denote maximum likelihood bootstrap support (percent support). (PNG 750 kb)