Table 1

CpG islands and other genomic features in ten 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

*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.

Han et al. Genome Biology 2008 9:R79   doi:10.1186/gb-2008-9-5-r79

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