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Table 5 Rate tests on tubulin gene duplication products.

From: Tubulin evolution in insects: gene duplication and subfunctionalization provide specialized isoforms in a functionally constrained gene family

Product 1

Product 2

Rate test

(Chi-Sq., p)

Bmβ1a

Bmβ1b

1.80

p = 0.179

Tcβ2a

Tcβ2b

79.45

p = 0.000

Amβ2a

Amβ2b

5.40

p = 0.020

Nvβ2a

Nvβ2b

61.81

p = 0.000

Nvβ2a

Nvβ2c

76.17

p = 0.000

Apβ2a

Apβ2b

0.14

p = 0.705

Apβ2a

Apβ2c

0.00

p = 1.00

Apβ2a

Apβ2d

24.00

p = 0.000

Phβ2a

Phβ2b

18.96

p = 0.000

Aeβ4a

Aeβ4b

11.31

p = 0.001

Dmα1a

Dmα1b

2.00

p = 0.157

Aeα1a

Aeα1b

1.00

p = 0.317

Agα1a

Agα1b

0.33

p = 0.563

Amα1a

Amα1b

0.00

p = 1.000

Nvα1a

Nvα1b

0.20

p = 0.654

Nvα1a

Nvα1c

1.29

p = 0.256

Apα1a

Apα1b

7.36

p = 0.007

Apα1a

Apα1c

4.00

p = 0.046

Agα4a

Agα4b

10.64

p = 0.001

  1. Protein evolutionary rates are compared between tubulin duplication products that postdate separation of insect orders, using Pediculus humanus corporis outgroups. Apβ2a is used as the outgroup in Pediculus rate tests.