Table 1 P-values of the LRTs to contrast different evolutionary models implemented in PAML (Yang, 2007)

From: Adaptive selection and coevolution at the proteins of the Polycomb repressive complexes in Drosophila

PcG complex gene

Models a

 

M0 vs FR

M0 vs 2R-fBobs

2R-fBobs vs FR

Test 2

PhoRC

 Pho

0.016*

0.449

0.013*

0.500

 Sfmbt

0.000***

0.000***

0.044*

0.033*

 Phol

0.002***

0.068

0.004***

0.017*

Pcl–PRC2

 Caf1

0.201

0.417

0.186

0.500

 E(z)

0.000***

0.000***

0.001***

0.031*

 Esc

0.000***

0.000***

0.439

0.231

 Su(z)12

0.040*

0.004***

0.205

0.409

 Pcl

0.000***

0.000***

0.000***

0.500

 Escl

0.004***

0.309

0.004***

0.175

PRC1

 Psc

0.000***

0.014*

0.000***

0.500

 Sce

0.000***

0.013*

0.001***

0.500

 Pc

0.742

0.376

0.735

0.072

 Ph-p

0.001***

0.427

0.001***

0.063

 Scm

0.056

0.315

0.053

0.500

dRAF b

 Kdm2

0.000***

0.006**

0.000***

0.215

PR–DUB

 Calypso

0.780

0.134

0.859

0.500

 Asx

0.000***

0.112

0.000***

0.500

  1. Significance: *0.05>P>0.01; **0.01>P>0.005; ***P<0.005.
  2. aM0, a single ω for all branches; free ratio (FR), a different ω for each branch; 2R-fBobs, one ω for the branch ancestral to the obscura group species and one ω for the rest of branches. Test 2 of positive selection as described in Zhang et al. (2005).
  3. bdRAF complex also contains PSC and SCE.
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