Skip to main content

Table 1 Detection of selection and/or relaxation of constraints by comparing MA, MA0 and M1a models (H1 hypothesis/H0 hypothesis)

From: Molecular evolution accompanying functional divergence of duplicated genes along the plant starch biosynthesis pathway

Gene family

Da

Seq.b

Lengthc

CFd

ωbe

Sitesf

MA/M1ag

MA/MA0g

MA0/M1ag

PHO

1

a

31

764

0

0.15

14.80

5.27 10-16

5.63 10-7

1.67 10-11

b

0.15

5.70

1.65 10-18

8.88 10-13

2.83 10-8

PGM

1

a

29

469

0

0.11

8.88

6.55 10-7

3.92 10-5

6.72 10-4

b

0.11

13.12

1.52 10-12

2.76 10-6

1.22 10-8

GBSS&SS

1

a

50

260

0

0.21

20.58

1.92 10-7

4.96 10-6

1.50 10-3

b

0.22

34.86

2.70 10-4

8.32 10-4

n.s.

2

a

29

425

0

0.19

8.91

9.47 10-5

1.73 10-3

n.s.

b

0.18

19.18

1.19 10-20

3.11 10-11

5.09 10-12

3

a

18

481

0

0.22

0.00

n.s.

n.s.

n.s.

b

0.22

0.76

n.s.

n.s.

n.s.

4

a

21

276

0

0.28

0.00

n.s.

n.s.

n.s.

b

0.28

9.76

3.63 10-6

2.03 10-5

8.63 10-3

5

a

30

324

0

0.20

16.39

6.01 10-6

3.24 10-4

8.54 10-4

b

0.20

11.01

5.68 10-7

3.55 10-6

7.01 10-3

6

a

13

426

1

0.25

0.00

n.s.

n.s.

n.s.

b

0.25

0.00

n.s.

n.s.

n.s.

BE

1

a

35

594

0

0.14

9.07

1.40 10-12

2.62 10-11

1.44 10-3

b

0.14

12.92

2.63 10-19

1.06 10-12

3.60 10-9

2

a

13

674

1

0.15

26.61

n.s.

n.s.

n.s.

b

0.15

0.43

n.s.

n.s.

n.s.

DBE

1

a

24

251

2

0.20

9.42

n.s.

n.s.

n.s.

b

0.20

9.13

7.02 10-5

6.18 10-4

6.50 10-3

2

a

18

348

0

0.17

9.94

8.71 10-6

5.21 10-5

8.48 10-3

b

0.18

22.63

1.79 10-9

5.25 10-5

1.00 10-6

AGT

1

a

10

279

3

0.11

0.75

n.s.

n.s.

n.s.

  1. a: duplication event D (Figures 2, 4 and 6) and the following branches a and b. b: number of sequences. c: number of sites. d: codon substitution model. e: dN/dS mean ratio value for background branches. f: percentage of sites under selection in the forward branch. g: LRT p-values for model comparisons. (p-values higher than 1% were considered non-significant, n.s.). Saturated branches (dS > 2.5) are not shown.