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Table 1 Distribution of duplicate gene pairs in selection pressure analysis from four Gossypium species

From: Functional structure analysis and genome-wide identification of CNX gene family in cotton

Pairs

Positive selection no

Purify selection NO

Total

Purity/%

0.99–0.50

0.49–0.00

Ga–Ga

0

0

9

9

100

Ga–Gr

0

1

14

15

100

Ga–Gb

1

4

21

26

96.15

Ga–Gh

2

5

20

27

92.59

Gb–Gb

0

0

25

25

100

Gb–Gh

0

3

19

22

100

Gb–Gr

0

0

42

42

100

Gh–Gr

0

3

43

46

100

Gh–Gh

0

1

30

31

100

Gr–Gr

0

0

7

7

100

Total

3

17

230

250

98.80