Evolutionary conserved cis-trans regulation machinery for diterpenoid phytoalexin production in Poaceae

### Competing Interest Statement The authors have declared no competing interest. * BGC : Biosynthetic gene cluster bHLH : Basic helix-loop-helix CuCl2 : Copper chloride DEGs : Differentially expressed genes DPF : Diterpenoid phytoalexin factor FDR : False discovery rate GGDP : Geranylgeranyl diphosphate UV : Ultraviolet Or, O. rufipogon : Oryza rufipogon Op, O. punctata : Oryza punctata Oo, O. officinalis : Oryza officinalis Ob, O. branchyantha : Oryza brachyantha Lp, L. perrieri : Leersia perrieri GO : Gene Ontology GUS : β-glucuronidase RT-qPCR : Reverse transcription-quantitative polymerase chain reaction RLUC : Renilla luciferase TPM : transcripts per million LUC, FLUC : Firefly luciferase LC-MS/MS : Liquid chromatography with tandem mass spectrometry WT : Wild type