Fig. 6

Detection of catechin content and genetic variations within catechin biosynthesis-related genes. a Detection of catechin content of the bud and leaf of both ‘Shuchaza’ and ‘Yunkang 10’. T-test was employed for significant analysis and two asterisks represent p < 0.01. Each sample was tested with three independent biological replicates and two technical replicates. b The flavonoid biosynthesis pathway. PAL, phenylalanine ammonia-lyase; C4H, cinnamic acid 4-hydroxylase; 4CL, 4-coumarate-CoAligase; CHS, chalcone synthase; CHI, chalcone isomerase; F3H, flavanone 3-hydroxylase; F3′H, flavonoid 3′-hydroxylase; F3′,5′H, flavonoid 3′,5′-hydroxylase; FLS, flavonol synthase; DFR, dihydroflavonol 4-reductase; ANS, anthocyanidin synthase; ANR, anthocyanidin reductase; LAR, leucocyanidin reductase; SCLP1A, subclade 1A of serine carboxypeptidase-like acyltransferases