Two clades (A and B) that represent different likely enzymatic function of 27 D. sinicus unigenes were pointed. In the Fig, unigene number was denoted using underline. Besides D. sinicus transcriptome data, other protein sequences encoding Shikimate O-hydroxycinnamoyltransferase were obtained from NCBI. To distinctly display the relationship between D. sinicus and other species, the species name of each sequence was marked out, and the corresponding accession numbers were as follows: Amborella trichopoda, XP_011620549.1; Brassica napus, XP_013719902.1; Camelina sativa, XP_010478899.1; Cucumis melo, XP_008466864.1; C. sativus, NP_001295843.1; Glycine max, XP_003543709.1; Gossypium raimondii, XP_012445417.1; Elaeis guineensis, XP_010942061.1; Fragaria vescasubsp.vesca, XP_011467012.1; Jatropha curcas, XP_012071524.1; Malus domestica, XP_008380698.1; Nelumbo nucifera, XP_010256176.1; Nicotiana sylvestris, XP_009789449.1; Phaseolus vulgaris, AGV54440.1; Phoenix dactylifera, XP_008790160.1; Populus euphratica, XP_011031277.1; P. trichocarpa, XP_006368492.1; Pyrus × bretschneideri, XP_009344995.1; Sesamum indicum, XP_011073311.1; Solanum tuberosum, XP_006343633.1; S. lycopersicum, XP_004235891.1; Tarenaya hassleriana, XP_010545447.1; Trifolium pretense, ACI16630.1; Vitis vinifera, XP_002268988.1; Zea mays, XP_008673748.1.