Table 2.

Correlation analysis of carotenoid content and gene expression in peels of different plum cultivars.

Gene Name	Lutein	Zeaxanthine	β-Cryptoxanthin	α-Carotene	β-Carotene	Total Carotenoid
DXS	−0.301	−0.123	−0.043	−0.354	−0.280	−0.365
DXR	0.261	0.396	0.044	0.061	−0.136	0.132
PSY	0.574 **	0.614 **	0.093	0.213	0.052	0.444 *
PDS	−0.484 *	−0.464 *	−0.075	0.375	0.235	−0.168
ZDS	0.131	0.312	0.207	0.641**	0.341	0.358
ZISO	0.311	0.368	0.018	0.392	0.110	0.316
CRTISO	−0.566 **	−0.700 **	−0.031	0.179	0.224	−0.264
LCYB	0.422 *	0.572 **	0.172	0.447*	0.149	0.432 *
LCYE	0.801 **	0.699 **	0.119	0.161	0.236	0.666 *
ECH	0.056	−0.200	−0.232	−0.201	−0.420 *	−0.224
BCH	0.175	−0.010	0.035	0.480 *	0.500 *	0.400
VDE	0.151	0.177	0.051	0.616 **	0.340	0.345
ZEP	0.354	0.589 **	−0.157	0.294	0.029	0.301
NSY	0.106	0.306	−0.072	0.097	−0.202	0.001
CCD4	0.149	0.028	−0.521 **	−0.489 *	−0.437 *	−0.207
NCED	−0.230	0.033	−0.570 **	−0.354	−0.429 *	−0.407 *

Note: * and ** represent the p values less than 0.05 and 0.01, respectively.