Integrative analyses of genetic variation in enzyme activities of primary carbohydrate metabolism reveal distinct modes of regulation in Arabidopsis thaliana

Table 3 Principal component analysis

	Total	PC1	PC2	PC3	PC4	PC5	PC6	PC7	PC8
Inv	0.44	0.22	0.27	0.41	-0.24	0.06	0.26	-0.17	-0.01
AGP	0.64	0.78	0.06	0.10	-0.05	0.09	-0.01	0.03	0.05
FBP	0.53	0.48	0.21	0.15	-0.04	0.17	0.22	0.31	-0.24
G6PDH	0.59	0.70	-0.11	0.09	-0.06	0.23	0.09	-0.14	-0.10
PFK	0.42	0.56	0.02	-0.04	0.04	0.00	0.28	-0.15	-0.08
PFP	0.82	0.83	0.21	-0.06	-0.11	0.03	-0.05	0.13	-0.21
PGM	0.65	0.54	0.04	0.15	-0.19	0.09	-0.02	0.49	0.20
PGI(Cyt)	0.70	0.76	0.12	-0.09	0.01	-0.08	0.13	-0.25	-0.10
PGI(Pla)	0.84	0.33	-0.11	0.30	-0.54	-0.19	-0.54	-0.06	0.01
PGI(Tot)	0.89	0.71	-0.04	0.16	-0.38	-0.22	-0.34	-0.23	-0.01
SPS	0.58	0.65	0.30	0.11	0.07	-0.15	-0.13	-0.04	-0.06
SuSy	0.35	0.45	0.14	-0.01	-0.12	-0.01	0.15	-0.05	-0.30
GK	0.51	0.60	0.02	0.02	-0.31	0.04	0.17	-0.11	0.06
FK	0.54	0.49	-0.23	0.06	-0.28	0.15	0.17	0.31	0.13
UGP	0.72	0.51	0.57	0.16	0.25	0.05	-0.18	0.08	-0.04
Rubisco (Ini)	0.91	0.51	-0.20	0.10	0.33	0.53	-0.41	-0.16	0.13
Rubisco (Max)	0.73	0.54	0.01	0.07	0.40	-0.29	-0.37	-0.10	0.21
Rubisco (Ratio)	0.93	0.09	-0.24	0.05	0.02	0.91	-0.10	-0.10	-0.03
ChlA	0.83	0.73	-0.24	-0.14	0.20	-0.15	0.25	-0.02	0.32
ChlB	0.78	0.68	-0.19	-0.17	0.11	-0.05	0.36	-0.06	0.33
AA	0.70	0.13	-0.52	-0.01	0.13	-0.08	-0.25	0.51	-0.26
Protein	0.74	0.80	-0.13	-0.10	0.14	-0.10	0.06	0.02	0.18
Starch	0.59	0.55	-0.25	0.02	0.31	-0.18	-0.10	0.15	-0.25
Suc	0.70	0.24	-0.23	0.50	0.48	-0.11	0.19	0.02	-0.24
Glu	0.86	-0.39	-0.30	0.78	0.01	-0.11	0.06	-0.03	0.00
Fru	0.79	-0.27	-0.39	0.68	-0.01	-0.03	0.22	-0.07	0.23
G1P	0.69	-0.14	0.57	0.13	-0.01	0.04	0.00	0.39	0.43
G6P	0.48	-0.16	0.54	0.22	0.09	0.02	0.23	0.01	-0.23
UDPG	0.70	-0.13	0.69	0.26	0.27	0.09	-0.19	-0.07	0.15
% of variance	67.82	28.25	9.08	6.64	5.47	5.36	5.25	4.00	3.77

Columns represent, respectively, the proportion of variance that could be explained by all components and by each component separately for the different traits analyzed. The last row represents the percentage of variance of all traits explained by all the components together, and by each separate component.

ISSN: 1474-760X