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Table 2 Major PEPCK amino acid variation shared by Colias species

From: A genetic polymorphism evolving in parallel in two cell compartments and in two clades

Taxon

 

Codons

335

503

629

 

n

p

aa

n

p

aa

n

p

aa

CEU

20

0.56

Gly

7

0.19

Asp

18

0.5

Ile

16

0.44

Ser

29

0.81

Glu

18

0.5

Val

CME

15

0.42

Gly

4

0.11

Asp

6

0.17

Ile

 

21

0.58

Ser

32

0.89

Glu

30

0.83

Val

x*−

 

1.18

  

0.98

  

3.00

 

P

 

0.24

  

0.33

  

0.003

 
  1. CEU, C. eurytheme; CME, C. meadii; n, variant counts; p, variant frequencies; aa, amino acids; x*, test parameter (normal deviate) for Goldstein’s exact binomial test for frequency difference [26]; P, probability of as much or more difference between samples by chance. Given n = 3 codons to test simultaneously, the corrected (Dunn-Sidak) minimum significance level α′ = [1 – (1– α)1/n = 0.017 [27].