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Shengxiang Zhang,Yuanyuan Shi,Chunmiao Shan,Liqiang Zhao,Kelong Ma,Luqi Huang,Jiawen Wu 한국식물학회 2020 Journal of Plant Biology Vol.63 No.3
Polygonatum odoratum (Mill.) Druce (P. odoratum) is a traditional Chinese herb. The isofavonoids of P. odoratum are important medicinal bioactive compounds for the treatment of hypoimmunity, rheumatic heart disease, cardiovascular diseases, and diabetes. This study used RNA sequencing to identify potential genes regulating isofavonoid biosynthesis in P. odoratum. To do this, we generated an overview of metabolic and secondary metabolic pathways, using MAPMAN, and identifed 96 genes encoding seven key enzymes involved in isofavonoid biosynthesis through their KEGG annotation. Alignment of phenylalanine ammonia-lyase or chalcone synthase amino acid sequences revealed well-conserved sequences, spatial structures, and active sites. We also verifed the expression of key genes encoding phenylalanine ammonia-lyase and chalcone synthase by quantitative real-time PCR (qRT-PCR). This analysis of the isofavonoid biosynthesis pathway and its crucial enzymes in P. odoratum lays the foundation for uncovering the regulatory mechanism of isofavonoid biosynthesis.