Fig. 3

Expression analyses of monolignol biosynthetic genes in Miscanthus × giganteus. a The relative expression levels of each monolignol biosynthetic gene in the first (L1), third (L3), fifth (L5) fully expanded leaves, sheaths (S), roots (R), rhizome buds (B), nodes (N), and the first and second (IN12), third and fourth (IN34), fifth and sixth (IN56) internodes from the bottom of the plant. b The expression pattern clustering monolignol biosynthetic genes. MgPAL1, MgPAL5, Mg4CL1, Mg4CL3, MgHCT1, MgHCT2, MgC3′H1, MgCCoAOMT1, MgCCoAOMT3, MgCCR1, MgCCR2, MgF5H, MgCOMT, and MgCAD were clustered together and relatively highly expressed in internodes. c The quantification of PAL, 4CL, HCT, CCoAOMT, and CCR gene pairs in various M. × giganteus organs. All the genes except for Mg4CL3 were highly or moderately expressed in these samples