Figure 1
From: Flavonoids are determinants of freezing tolerance and cold acclimation in Arabidopsis thaliana
Flavonol and anthocyanin biosynthetic pathway indicating mutant lines used in this study.
Genes and metabolites are shown in black, mutant lines in Col-0 background in yellow and in Ler background in orange. Details of the mutant lines are listed in the bottom panel4,7,9,14,31,32,33,35,37,38,61,62,63,64,65. MYB11, MYB12, MYB111, R2R3 MYB transcription factors; TTG1/WD40, TTG2/WRKY44, transparent testa glabra; bHLH42/TT8, basic helix-loop-helix protein 42; PAP1/MYB75, PAP2/MYB90, production of anthocyanin pigment proteins 1 and 2; CHS/TT4, chalcone synthase; CHI/TT5, chalcone isomerase; F3H/TT6, flavanone 3-hydroxylase; F3′H/TT7, flavonoid 3′-hydroxylase; FLS, flavonol synthase; OMT1, O-methyltransferase 1; DFR/TT3, dihydroflavonol 4-reductase; ANS/TT18, anthocyanidin synthase; UGT78D2/Fd3GT, UGT78D1/F3RT, UGT89C1/F7RT, UGT75C1/A5GT, A3G2″XT, UDP-glucoronosyl/UDP-glucosyl transferase family proteins; AAT, anthocyanin acyl-transferase; TT, transparent testa.
