| HPA | Hosta plantaginea (Lam.) Aschers or H. plantaginea (Lam.) A. |
| HC | Hosta Cathayana or H. Cathayana |
| HP | Hosta plantaginea or H. plantaginea |
| HS | Hosta plantaginea ‘Summer Fragrance’ or H. plantaginea ‘Summer Fragrance’ |
| DEGs | differentially expressed genes |
| CHS | Chalcone synthase |
| ANS | Anthocyanidin synthase |
| GO | Gene Ontology |
| KEGG | Kyoto Encyclopedia of Genes and Genomes |
| KOG | Eukaryotic Orthologous Groups of protein |
| qRT-PCR | quantitative real-time PCR |
| UFGT | UDP-glucose:flavonoid-3-o-glucosyltransferase |
| DAG | Directed Acyclic Graph |