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Table 3 Mono- and dinucleotide frequencies of coding and non-coding sequences in Drosophila species

From: Assessing the impact of comparative genomic sequence data on the functional annotation of the Drosophilagenome

Mononucleotide

D. melanogaster

D. erecta

D. pseudoobscura

D. willistoni

D. littoralis

   

Coding

  

A = T

0.231

0.222

0.220

0.265

0.224

G = C

0.269

0.278

0.280

0.235

0.276

   

Non-coding

  

A = T

0.300

0.295

0.281

0.324

0.305

G = C

0.200

0.205

0.219

0.176

0.195

Dinucleotide

D. melanogaster

D. erecta

D. pseudoobscura

D. willistoni

D. littoralis

   

Coding

  

TA

0.032

0.028

0.027

0.046

0.030

AT

0.057

0.053

0.056

0.080

0.058

AA = TT

0.057

0.052

0.049

0.076

0.056

AC = GT

0.054

0.053

0.051

0.051

0.051

AG = CT

0.063

0.064

0.064

0.057

0.059

GA = TC

0.067

0.068

0.067

0.063

0.055

CA = TG

0.075

0.074

0.077

0.078

0.082

CG

0.064

0.068

0.068

0.046

0.073

GC

0.081

0.085

0.091

0.067

0.109

CC = GG

0.067

0.072

0.071

0.054

0.061

   

Non-coding

  

TA

0.069

0.068

0.058

0.080

0.075

AT

0.086

0.084

0.077

0.094

0.089

AA = TT

0.110

0.106

0.094

0.126

0.111

AC = GT

0.052

0.052

0.052

0.053

0.053

AG = CT

0.052

0.053

0.058

0.051

0.052

GA = TC

0.053

0.053

0.059

0.052

0.048

CA = TG

0.068

0.068

0.070

0.066

0.071

CG

0.037

0.040

0.039

0.025

0.037

GC

0.052

0.056

0.057

0.038

0.058

CC = GG

0.043

0.044

0.052

0.033

0.035

  1. Values for D. melanogaster are genome-wide averages based on Release 3 sequences/annotations [9,14] and include unmapped scaffolds derived from heterochromatic regions (see [83]). Values in bold indicate the most frequently used mono- or dinucleotide. Frequencies of complementary mono- and dinucleotides were averaged to account for the double-stranded nature of DNA.