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Table 6 CpG islands and other genomic features in non-mammalian genomes

From: CpG island density and its correlations with genomic features in mammalian genomes

 

Genome

CpG islands

Species

Length (Mb)*

Number of chromosome pairs

GC content (%)

ObsCpG/ExpCpG

Number of CGIs

CGI density (/Mb)

Avgerage length (bp)

GC content (%)

ObsCpG/ExpCpG

Chicken†

985

39

41.4

0.248

22,623

23.0

1,098

60.0

0.844

   Microchromosome

167

20

45.7

0.305

8,634

51.7

1,040

60.4

0.810

   Macrochromosome

674

6

40.0

0.219

10,125

15.0

1,138

59.6

0.863

Lizard

1,742

18

40.4

0.296

45,171

25.9

899

56.8

0.728

Tetraodon

187

21

45.9

0.601

30,175

161.6

1,013

56.7

0.782

Stickleback

391

21

44.5

0.662

61,768

157.8

824

55.8

0.842

Medaka

582

24

40.1

0.479

21,522

37.0

746

55.8

0.784

Zebrafish

1,524

25

36.5

0.531

22,392

14.7

1,162

57.0

0.869

Fugu

351

22

45.5

0.565

47,251

134.5

872

56.0

0.808

  1. *The nucleotides marked as 'N' were not included in the analysis. †Only 30 chromosomes were used in the analysis because chromosomes 29-31 and 33-38 were too small to assemble [39]. The microchromosomes included chromosomes GGA11-28, 32 and W and the macrochromosomes included chromosomes GGA1-5 and Z.
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Genome Biology

ISSN: 1474-760X

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