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Table 1 Parameters reflecting changes in selection pressure predicted by models

From: Genome-wide analysis of purple acid phosphatase structure and expression in ten vegetable species

Lineage-based tests for selection
model clade No. np lnL 2|ΔlnL| Significant (p < 0.05) ω ω (background) ω (foreground)
one-ratio model   537 −37,685.482872    0.08013   
two-ratio model A 538 −37,681.586780 7.792184 yes   0.08013 0.00200
B 538 −37,678.998415 12.968914 yes   0.08020 0.00049
C 538 −37,683.604012 3.757720 no   0.08030 0.00916
D 538 −37,685.271690 0.422364 no   0.08011 0.01379
E 538 −37,684.446480 2.072784 no   0.08031 0.00402
F 538 −37,684.155074 2.655596 no   0.08034 0.00301
G 538 −37,685.056969 0.851806 no   0.08018 0.00755
H 538 −37,682.302812 6.360120 yes   0.08020 inf.
I 538 −37,683.897444 3.170856 no   0.08019 inf.
Branch-sites test for positive selection of clade H
model np lnL 2|ΔlnL| Significant Class 0 Class 1 Class 2a Class 2b
Null (neutral) 539 −37,663.562931    p = 0.56355
ω (background) = 0.08032
ω (foreground) = 0.08032
p = 0.00407
ω (background) = 1
ω (foreground) = 1
p = 0.42929
ω (background) = 0.08032
ω (foreground) = 1
p = 0.00310
ω (background) = 1
ω (foreground) = 1
Positive Selection 540 −37,661.849118 3.427626 no (vs Null) p = 0.52279
ω (background) = 0.08042
ω (foreground) = 0.08042
p = 0.00377
ω (background) = 1
ω (foreground) = 1
p = 0.47005
ω (background) = 0.08042
ω (foreground) = inf.
p = 0.00339
ω (background) = 1
ω (foreground) = inf.