Table 4 Positive selection analysis of single-domain and tetra-domain hemoglobins in Branchipolynoe spp.

From: Adaptation and evolution of deep-sea scale worms (Annelida: Polynoidae): insights from transcriptome comparison with a shallow-water species

 

TD1-4

TD1

TD2

TD3

TD4

InL

−2631.577

−2641.405

−2637.472

−2644.831

−2637.171

κ

1.734

1.713

1.691

1.755

1.726

np

32

32

32

32

32

ω0

0.219 (65.8%)

0.232 (78.9%)

0.230 (75.9%)

0.248 (76.96%)

0.231 (76.3%)

ω1

1 (16.0%)

1 (21.1%)

1 (15.4%)

1 (19.3%)

1 (17.4%)

ω2a

40.993 (14.6%)

1 (0)

10.305 (3%)

76.832 (3%)

∞ (5.1%)

ω2b

40.993 (3.5%)

1 (0)

10.305 (0.7%)

76.832 (0.7%)

∞ (1.2%)

2ΔlnL #

12.439***

0NS

4.820*

7.148**

7.415**

Selected sites

31A; 66C; 112 L

   

11S

  1. InL: integral nonlinearity, the maximum deviation between the ideal output and the actual output level; κ: transition/transversion ratio; np: number of parameters estimated by the model; ω0: estimated ω for the category of sites under purifying selection; ω1: estimated ω for sites under neutral evolution; ω2a: estimated ω for sites under positive selection in the foreground branches against background branches under purifying selection; ω2b: estimated ω for sites under positive selection in the foreground branches against background branches under neutral evolution.
  2. #P < 0.05: *P < 0.01: **P < 0.001. NS: not significant.
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