Fig. 1: Identification of the key candidate genes involved in the synthesis of O-methylated catechins in tea plants. | Nature Communications

Fig. 1: Identification of the key candidate genes involved in the synthesis of O-methylated catechins in tea plants.

From: Characterization of two O-methyltransferases involved in the biosynthesis of O-methylated catechins in tea plant

Fig. 1: Identification of the key candidate genes involved in the synthesis of O-methylated catechins in tea plants.The alternative text for this image may have been generated using AI.

a Biosynthetic pathway of main O-methylated catechins (EGCG3″Me and EGCG4″Me). SAM, S-adenosyl-L-methionine. OMT O-methyltransferase, SAH S-adenosyl-L-homocysteine. b Chromosome distribution of ED4 (Euclidean distance (ED) raised to the fourth power) values based on SNPs and InDels and differentially expressed genes (DEGs) in the volcano plot. With the chromosomal location of ‘Huangdan’ genome used as the abscissa and the ED4 value used as the ordinate, the chromosomal scores of RNA-seq SNP and InDel ED4 values were plotted. The conditions for screening DEGs were |log2FoldChange | > 1 and P < 0.05 by unpaired two-tailed test. c Phylogenetic analysis of O-methyltransferases. Phylogenetic tree of selected OMTs: Eucalyptus globulus CCoAOMT (O81185), Eucalyptus gunnii CCoAOMT (O04854), Nicotiana tabacum CCoAOMT (O24151), Solanum tuberosum CCoAOMT (Q8H9B6), Camellia sinensis CCoAOMT (K9USP2), Populus trichocarpa CCoAOMT (O65922), Vitis vinifera FAOMT (C7AE94), Triticum aestivum FOMT (Q84N28), Oryza sativa subsp. Japonica COMT (Q6ZD89), Chrysosplenium americanum FOMT (Q42653), Arabidopsis thaliana COMT (Q9FK25), Camellia sinensis COMT (E2FYC3), Coffea canephora COMT (Q8LL87).

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