Skip to main content

Table 6 Parameter estimates for ζ-models

From: DNA polymorphism and selection at the bindin locus in three Strongylocentrotus sp. (Echinoidea)

Data

Model

κ

ω

ζ-model parametersa

Log-likelihood values

INT

Neutral

3.30

0.49

ζ0 = 0.99, p 0 = 0.14 [ζ1 = 1, p 1 = 0.86]

−2886.217945

 

Two-category

2.62

0.53

ζ0 = 0.69, p 0 = 0.98 ζ1 = 61.77, [p 1 = 0.02]

−2870.740681 p-value = 10−8

PAL

Neutral

3.12

0.27

ζ0 = 1.00, p 0 = 0.00 [ζ1 = 1, p 1 = 1.00]

−2533.273804

 

Two-category

2.87

2.12

ζ0 = 0.00, p 0 = 0.00 ζ1 = 8.80, [p 1 = 1.00]

−2522.600909 p-value = 2x10−6

DRO

Neutral

1.14

0.31

ζ0 = 0.00, p 0 = 0.53 [ζ1 = 1, p 1 = 0.47]

−2279.474923

 

Two-category

1.17

0.41

ζ0 = 0.00, p 0 = 0.91 ζ1 = 7.27, [p 1 = 0.09]

−2277.438710 p-value = 0.02

  1. aValues in square brackets are fixed (ζ1 in neutral model) or calculated from estimates (p 1 = 1− p 0)
  2. See Table 1 for the species designation