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Table 4 Functional divergence between subfamilies of the expansin gene superfamily in soybean

From: Soybean (Glycine max) expansin gene superfamily origins: segmental and tandem duplication events followed by divergent selection among subfamilies

Group I

Group II

Type-I

LRT

Qk > 0.95

Critical amino acid sites

Type-II

Qk > 0.95

Critical amino acid sites

θI ± s.e.

θII ± s.e.

EXPA

EXPB

0.498 ± 0.079

39.742

3

84C,145 V,172 L

-0.023 ± 0.259

15

62 T,65 L,103 F,104C,121P,122 M,141G,

        

143 V,160 F,176 V,177G,190*S,191R,207S

EXPA

EXLB

0.783 ± 0.082

91.136

17

45G,54Y,61 N,84C,102 N,104C,

0.136 ± 0.278

53

18A,45G,54Y,56*Q,60 T,61 N,65 L,67 T,69 L,

     

161 T,165H,167Y,172*L,176 V,

  

72 N,75S,76C,82I,102 N,104C,106P,107 N,

     

181D,184*G,185 V,191R,201 W,

  

120P,125 F,126D,127 L,133*L,137Q,138Y,

     

202G

  

145 V,147Y,154R,155R,160 F,162I,165H,

        

168 F,170 L,175 N,176 V,180G,181D,185 V,

        

187I,189G,191R,192*T,196*P,199R,201 W,

        

204 N,205 W,207S,208 N,209 N,210Y,213G

EXPB

EXLB

0.572 ± 0.141

14.448

0

none

-0.081 ± 0.298

13

54Y,63A,67 T,103 F,106P,121P,125 F,126D,

        

134R,137R,140A,175 N

  1. Note: θI and θII, the coefficients of Type-I and Type-II functional divergence;
  2. LRT, Likelihood Ratio Statistic;
  3. Qk, posterior probability;
  4. *Sites also responsible for the positive selection;
  5. Sites in bold means they are responsible for both type-I and type-II functional divergence.