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Table 1 Significant likelihood ratio tests of selection on Sxl in Drosophila, the Tephritidae and M. domestica sequences

From: Molecular evolution of Drosophila Sex-lethal and related sex determining genes

Test

Line

Alternative Ma

Null Ma

L

df

Pb

Sitesc

1

a

Nearly Neutral

One ratio

112.53

1

< 0.0001

21

2-D

b

Local selection

Local relaxation

9.16

1

0.0024

17

2-T

c

Local relaxation

Uniform Selection

262.18

2

< 0.0001

1

2-T

d

Local selection

Local relaxation

5.46

1

0.019

0

3-D

e

Local relaxation

Uniform Selection

248.25

2

< 0.0001

0

3-Rd

f

Local relaxation

Uniform Selection

208.30

2

< 0.0001

43

  1. aAlternative and null models, see Additional File 2, Table S1 for more information on models and Log-likelihood values, bP value calculated from a χ2distribution, cnumber of sites significant in Bayesian post-hoc tests (P < 0.05), dclade consisting of all species excluding Drosophila. The alignment, after deleting gaps, was composed of 298 codons. Tests that we deemed weakly significant because Bayesian post-hoc tests did not detect relevant AA are shown in italics.