Schematic representation of the cladogram of cysteine proteinases C1A from algae to angiosperms. The amino acid sequences were aligned by MUSCLE and analysed with the PhyML method. Approximate likelihood-ratio test values >80% are indicated. F-like, cathepsin F-like (pink); H-like, cathepsin H-like (grey); B-like, cathepsin B-like (green); L-like, cathepsin L-like (blue). Other cysteine proteinases C1A from algae (yellow). Vc, Volvox carteri.