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Table 2 Comparison of candidate positively selected genes (PSGs) and those not exhibiting positive selection (non-PSGs)

From: Genome-wide signals of positive selection in strongylocentrotid sea urchins

Category

No. of genes

No. of base pairs

Mean No. of codons

Mean

p1 M8a

Mean

LRT Scoreb

Mean

dN

Mean

dS

Mean

dN/dSC

PSGs

1008

2,188,170

502.4

0.0399

13.67

0.0844

0.333

0.253

Non-PSGs

5512

8,487,210

341.8

0.0544

1.35

0.0503

0.340

0.148

TOTAL

6520

10,675,380

366.6

0.0521

3.26

0.0556

0.339

0.164

  1. aMean percentage of codons with d N /d S ratios >1 identified by PAML model M8
  2. bMean Likelihood Ratio Test Score comparing PAML models M7 and M8
  3. cCalculated following Wolf et al. (2009)
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BMC Genomics

ISSN: 1471-2164

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