Table 1 Species pairs analysed in this study, genetic distance (DXY) between species within each pair, median dN/dS for autosomal (A) and X-linked genes, and numbers of single-copy orthologs between species within each pair from which dN/dS was calculated

From: Faster adaptation but slower divergence of X chromosomes under paternal genome elimination

Focal species

Outgroup species

DXY (whole genome)

DXY (A)

DXY (X)

dN/dS (A)

dN/dS (X)

Orthologs (A)

Orthologs (X)

Bradysia coprophila

Bradysia odoriphaga

0.162

0.163

0.156

0.121

0.098

8131

2229

Lycoriella ingenua

Lycoriella agraria

0.141

0.130

0.134

0.153

0.090

8446

2415

Bradysia confinis

Bradysia desolata

0.157

0.153

0.164

0.426

0.255

3235

1650

Phytosciara flavipes

Bradysia pectoralis

0.177

0.177

0.223

0.092

0.068

977

75

Mayetiola destructor

Mayetiola hordei

0.179

0.144

0.139

0.182

0.170

3782

4683

Contarinia nasturtii

Contarinia rumicis

0.208

0.202

0.202

0.074

0.071

3383

3353

Sitodiplosis mosellana

Aphidoletes aphidimyza

0.189

0.188

0.200

0.075

0.071

2176

2229

Dilophus febrilis

Dilophus femoratus

0.041

0.040

0.038

0.186

0.228

5170

212

  1. All genera except Dilophus exhibit PGE.