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Table 3 Nucleotide composition and AT- and GC-skews of the mitochondrial protein-encoding and ribosomal RNA genes and the entire Flustra foliacea genome.

From: The complete mitochondrial genome of Flustra foliacea (Ectoprocta, Cheilostomata) - compositional bias affects phylogenetic analyses of lophotrochozoan relationships

Gene

Proportion of nucleotides

AT%

AT skew

GC skew

 

A

G

C

T

   

atp6

0.213

0.225

0.123

0.439

65.2

-0.347

0.293

atp8

0.306

0.189

0.099

0.405

71.1

-0.139

0.313

cox1

0.227

0.219

0.135

0.419

64.6

-0.297

0.237

cox2

0.225

0.237

0.124

0.414

63.9

-0.296

0.313

cox3

0.196

0.266

0.110

0.426

62.2

-0.370

0.415

cob

0.225

0.214

0.130

0.430

65.5

-0.313

0.244

nad1

0.226

0.217

0.103

0.454

68.0

-0.335

0.356

nad2

0.246

0.217

0.104

0.434

68.0

-0.276

0.352

nad3

0.177

0.234

0.105

0.484

66.1

-0.464

0.381

nad4

0.214

0.219

0.106

0.462

67.6

-0.367

0.348

nad4L

0.212

0.242

0.072

0.474

68.6

-0.382

0.541

nad5

0.217

0.222

0.116

0.445

66.2

-0.344

0.314

nad6

0.187

0.224

0.085

0.503

69.0

-0.458

0.450

rrnS

0.336

0.215

0.142

0.306

64.2

0.047

0.204

rrnL

0.357

0.197

0.115

0.331

68.8

0.038

0.263

Entire genome

0.248

0.222

0.114

0.417

66.5

-0.254

0.321

Protein coding sequences

0.219

0.224

0.114

0.442

66.1

-0.337

0.325

1st codon position

0.27

0.257

0.117

0.358

62.8

-0.140

0.374

2nd codon position

0.169

0.183

0.186

0.462

63.1

-0.464

-0.008

3rd codon position

0.218

0.233

0.042

0.506

72.4

-0.398

0.695

  1. AT skew = (A%-T%)/(A%+T%); GC skew = (G%-C%)/(C%+G%)