Fig. 6

Phylogenetic analysis of Isodon amethystoides CPS and KSL candidate genes by the maximum likelihood method with MEGA software. I. amethystoides CPS and KSL transcripts listed in Additional file 14: Table S10 were blasted in NCBI to obtain the CDS information for phylogenetic analysis. IeCPS1, I. eriocalyx ent-copalyldiphosphate synthase (AEP03177); IeCPS2, I. eriocalyx ent-copalyldiphosphate synthase (AEP03175); IrCPS1, I. rubescens ent-copalyldiphosphate synthase (KU180499); IrCPS3, I. rubescens copalyl diphosphate synthase 3 (APJ36373); IrCPS4, I. rubescens copalyl diphosphate synthase 4 (APJ36374); IrCPS5, I. rubescens copalyl diphosphate synthase 5 (APJ36375); SmCPS1, Salvia miltiorrhiza copalyl diphosphate synthase 1 (KC814639); SmCPS2, S. miltiorrhiza copalyl diphosphate synthase 2 (AHJ59322); SdCPS, Scoparia dulcis ent-copalyldiphosphate synthase (BAD91286); OsCPS, Oryza sativa ent-copalyldiphosphate synthase (BAD424492); IrKSL1, I. rubescens ent-kaurene synthase (KUI180504); IrKSL2, I. rubescens ent-kaurene synthase (KUI180505); IrKSL3, I. rubescens ent-kaurene synthase (KUI180506); IrKSL4, I. rubescens ent-kaurene synthase (KX580633); IrKSL5, I. rubescens ent-kaurene synthase (KX580635); TaKSL5, Triticum aestivum nerolidol synthase (BAL41692); OsKSL1, Oryza sativa ent-kaurene synthase (AAQ72559); HvKSL1, Hordeum vulgare ent-kaurene synthase (AAT49066). Numbers on branches indicate the bootstrap percentage values calculated from 1000 bootstrap replicates