Table 3 Information content and characteristics of each gene partition

Number of sequences

254 (100%)

229 (90.2%)

215 (84.6%)

207 (81.5%)

220 (86.6%)

254

bp after alignment

653

992

755

1265

1034

4699

Number of variable sites

393

684

392

874

685

3028

Number of informative characters under parsimony

326

585

327

680

581

2499

% informative characters under parsimony

49.9

58.9

43.3

51.4

56.2

53.2

Π _T

0.227

0.296

0.246

0.226

0.231

0.245

Π _C

0.236

0.293

0.214

0.240

0.252

0.249

Π _A

0.313

0.265

0.307

0.252

0.245

0.271

Π _G

0.224

0.146

0.234

0.283

0.272

0.234

Overall mean genetic distance (p-distance)

0.122 ± 0.008

0.216 ± 0.007

0.083 ± 0.004

0.108 ± 0.004

0.110 ± 0.004

0.134 ± 0.002

Nucleotide substitution model

GTR + I + Γ

TN93 + I + Γ

T92 + I + Γ

K2P + I + Γ

K2P + I + Γ

GTR + I + Γ

α (shape) parameter of Γ distribution

0.65

0.65

1.03

0.89

0.97

0.61

Proportion of invariants (I) sites

0.32

0.29

0.42

0.22

0.26

0.29