Phylogenetic tree of OMTs. Phylogenetic tree was constructed based on the deduced amino acid sequences for the D. scandens OMTs (bold letters) and other plant OMTs. Abbreviations and GenBank accession numbers for the sequences used are as follows: EcOMT, putative Eschscholzia californica OMT (ACO90220.1); CjCoOMT, Coptis japonica columbamine OMT (Q8H9A8.1); TtOMT, Thalictrum tuberosum catechol OMT (AAD29845.1); TtCaOMT, T. tuberosum catechol OMT (AAD29843.1); PsCaOMT, P. somniferum catechol OMT (AAQ01670.1); PsN7OMT, P. somniferum norreticuline 7OMT (ACN88562.1); Ps6OMT, P. somniferum norcoclaurine 6OMT (AAP45315.1); Ps4′OMT2, P. somniferum 3′-hydroxy-N-methylcoclaurine 4′OMT2 (AAP45314.1); Ps4′OMT1, P. somniferum 3′-hydroxy-N-methylcoclaurine 4′OMT1 (AAP45314.1); Cc4′OMT, Coptis chinensis 3′-hydroxy-N-methylcoclaurine 4′OMT (ABY75613.1); Cj4′OMT, C. japonica 3′-hydroxy-N-methylcoclaurine 4′OMT (Q9LEL5.1); Tf4′OMT, T. flavum 3′-hydroxy-N-methylcoclaurine 4′OMT (AAU20768.1); Cj6OMT, C. japonica norcoclaurine 6OMT (Q9LEL6.1); Tf6OMT, T. flavum norcoclaurine 6OMT (AAU20765.1); VvReOMT, Vitis vinifera resveratrol OMT (CAQ76879.1); PtFlOMT, Populus trichocarpa flavonoid OMT predicted protein (XP_002312933.1); CjSOMT, C. japonica scoulerine 9OMT (Q39522.1); TfSOMT, T. flavum scoulerine 9OMT(AAU20770.1); PaCafOMT, Picea abies caffeate OMT (CAI30878.1); CaCafOMT, Capsicum annuum caffeate OMT (AAG43822.1); PsOMT1, P. somniferum SOMT1 (JN185323); PsOMT2, P. somniferum SOMT2 (JN185324); PsOMT3, P. somniferum SOMT3 (JN185325); ObEuOMT, Ocimum basilicum eugenol OMT (AAL30424.1); MpFlOMT, Mentha X piperita flavonoid 8OMT (AAR09600.1); ObCafOMT, O. basilicum caffeate OMT (AAD38189.1); CbEuOMT, Clarkia breweri (iso)eugenol OMT (AAC01533.1); CbCafOMT, C. breweri caffeate OMT (O23760.1); and AmCafOMT, Ammi majus caffeate OMT (AAR24095.1).