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Table 1 CpG islands and other genomic features in ten mammalian genomes

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

 

Genome

CpG islands

Species

Size (Gb)*

Number of chromosome pairs

Number of arms

GC content (%)

ObsCpG/ExpCpG

Number of CGIs

CGI density (/Mb)

Avgerage length (bp)

GC content (%)

ObsCpG/ExpCpG

Human

2.85

23

82

40.9

0.236

37,531

13.2

1,089

62.0

0.743

Chimpanzee

2.75

24

84

40.7

0.233

35,845

13.0

1,011

60.3

0.761

Macaque

2.65

21

84

40.7

0.245

39,498

14.9

957

60.8

0.749

Mouse

2.48

20

40

41.7

0.192

20,458

8.2

1,043

60.6

0.756

Rat

2.48

21

64

41.9

0.220

19,568

7.9

1,004

59.7

0.758

Dog

2.31

39

80

41.0

0.244

58,327

25.3

1,102

62.2

0.753

Cow

2.29

30

62

41.9

0.236

36,729

16.0

1,023

61.2

0.740

Horse

2.03

32

92

41.0

0.285

33,135

16.3

937

59.2

0.749

Opossum

3.34

9

24

37.6

0.129

24,938

7.5

919

60.8

0.698

Platypus

0.41

26

NA

43.3

0.296

14,686

35.9

929

56.8

0.785

  1. *The nucleotides marked as 'N' were not included in the analysis. Number of arms in a female. Incomplete genome sequences (only 19 partially assembled chromosomes). NA, not available.