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Table 5 Comparison of d N /d S values for sex-biased genes to unbiased genes for brain, tail, and gonad tissues

From: Transcriptome assemblies for studying sex-biased gene expression in the guppy, Poecilia reticulata

 

Brain

Tail

Gonad

 

(N)

dN/dS

p-value

(N)

dN/dS

p-value

(N)

dN/dS

p-value

All

         

Unbiased

7386

0.097

 

5466

0.100

 

1667

0.099

 

Male-biased

105

0.082

0.015

279

0.096

0.474

1350

0.122

< 0.0001

Female-biased

653

0.129

< 0.0001

266

0.119

< 0.0001

1984

0.112

< 0.0001

Autosomal

         

Unbiased

6061

0.096

 

4383

0.100

 

1328

0.097

 

Male-biased

96

0.084

0.083

221

0.094

0.576

1111

0.122

< 0.0001

Female-biased

542

0.131

< 0.0001

199

0.119

< 0.0001

1561

0.111

< 0.0001

Single Tissue

         

Unbiased

2018

0.094

 

504

0.124

 

104

0.135

(< 0.0001)

Male-biased

74

0.077

0.061

179

0.091

0.00014

1070

0.122

0.0038 (< 0.0001)

Female-biased

310

0.130

< 0.0001

98

0.122

0.337

1368

0.108

0.00014 (< 0.0001)

Multiple Tissue

         

Unbiased

4043

0.096

 

3879

0.097

 

1224

0.094

 

Male-biased

22

0.107

0.929

42

0.107

0.452

41

0.105

0.336

Female-biased

232

0.132

< 0.0001

101

0.116

0.0017

193

0.131

< 0.0001

Highly expressed

         

Unbiased

2220

0.079

 

1103

0.090

 

550

0.084

 

Male-biased

23

0.076

0.328

50

0.102

0.120

684

0.125

< 0.0001

Female-biased

183

0.115

< 0.0001

40

0.104

0.191

499

0.112

< 0.0001

  1. We first compare mean dN/dS values for all sex-biased genes (FDR < 0.1 and median fold-change: brain 1.5 fold; tail 1.7 fold; gonad 3.5 fold) to unbiased genes (FDR > 0.1, log2CPM > 2). We then compare sex-biased genes mapped to autosomal linkage groups only. We also compare those expressed only in a single tissue and multiple tissues separately. In the single tissue gonad set we also compared dN/dS to unbiased genes on autosomal linkage groups only (p-values given in brackets). Finally, we compared only highly expressed genes (>32 CPM). For each comparison we give the number of genes (N), the mean dN/dS, and p-value, with p-values less than 0.0001 in bold.