Table 4 The summary of positive selective pressure analysis on genes in M2a, M7 vs. M8 model.

From: Comparative chloroplast genome analysis of seven extant Citrullus species insight into genetic variation, phylogenetic relationships, and selective pressure

Gene name

Model

np

LnL

ω2(M2a)

LRTs(2â–³LnL)

LRT p-value

Positive sites

atpB

M8

16

 − 2114.47

197.5187

38.81554

4.00E−09

52 Q*

 

M7

14

 − 2133.88

    

clpP

M8

16

 − 890.821

429.3408

34.30236

3.60E−09

108 S**

 

M7

14

 − 907.973

    

rpoC2

M8

16

 − 5901.01

177.5821

52.56322

0

937 G*

 

M7

14

 − 5927.29

    
  1. *Means p < 0.05, **means p < 0.01.
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