Table 6 Ranking of species origin regarding the flavonoid constituents of Xanthoceras sorbifolia leaves obtained by calculating the composite score of the principal component analysis.

From: Genome-wide association analysis and gene mining of flavonoids in Xanthoceras sorbifolia

Source

Principal component score

Overall ranking

PCA 1

PCA 2

PCA 3

PCA 4

Aggregate score

Gansu

33368.80

2177.57

24184.94

32666.51

16581.27

1

Shanxi

32916.17

1635.95

23293.51

32700.52

16384.48

2

Ningxia

31498.38

2158.40

23582.73

30873.40

15680.48

3

Shaanxi

30537.46

2760.69

22473.24

29678.49

15164.42

4

Shandong

27652.67

4959.09

20168.65

25689.69

13609.72

5

Inner Mongolia

22052.65

5784.41

17821.52

19587.45

10822.87

6

Liaoning

20899.48

6813.75

17470.61

18035.40

10224.41

7

Hebei

18453.61

6401.02

16078.26

15515.82

9009.35

8