Table 2.

Pearson correlation coefficients between triterpene contents (reported in Table 1) and gene expression data (reported in Fig. 8) obtained from 20 apple cultivars

	Ursolic acid	Oleanolic acid	Oleanolic acid‐3‐trans‐caffeate	Betulinic acid	Betulinic acid‐3‐trans‐caffeate	Betulinic acid‐3‐cis‐caffeate	MdOSC1	MdOSC3	MdOSC5	MdOSC4
Ursolic acid
Oleanolic acid	0.86**
Oleanolic acid‐3‐trans‐caffeate	−0.32 ns	−0.58**
Betulinic acid	−0.41 ns	−0.41 ns	0.65**
Betulinic acid‐3‐trans‐caffeate	−0.65**	−0.68**	0.76**	0.79**
Betulinic acid‐3‐cis‐caffeate	−0.64**	−0.69**	0.81**	0.82**	0.99**
MdOSC1	0.49 *	0.66 **	−0.78**	−0.53*	−0.76**	−0.76**
MdOSC3	0.30 ns	0.44 ns	−0.39*	−0.14	−0.48*	−0.45*	0.7**
MdOSC5	−0.29 ns	−0.42 ns	0.78 **	0.67 **	0.80 **	0.81 **	−0.63**	−0.41 ns
MdOSC4	−0.09 ns	0.16 ns	0.16 ns	0.31 ns	0.15 ns	0.19 ns	0.01 ns	0.29 ns	0.19 ns
CYP716A175	0.19 ns	0.21 ns	−0.25 ns	0.09 ns	−0.33 ns	−0.29 ns	0.32 ns	0.78**	−0.31 ns	0.08 ns

Data significance level: **, P < 0.01; *, P < 0.05; ns, nonsignificant. Data in bold indicate positive correlations between a specific triterpene content and the expression of a specific gene.