Table 1

Counts for selected HCNE sets

Criteria for HCNE detection
Number of HCNEs detected in indicated comparison


Minimum identity
Minimum size (bp)
Human vs mouse
Human vs chicken
Human vs zebrafish
Zebrafish vs Tetraodon

80% over 30 columns
30
NC
125,174
19,596
57,681
90% over 30 columns
30
NC
78,831
8,260
26,157
96% over 30 columns
30
305,015
50,478
3,656
10,205
100%
30
150,487
35,338
1,721
4,737
70% over 50 columns
50
NC
93,162
16,725
45,828
80% over 50 columns
50
NC
63,304
7,169
25,997
90% over 50 columns
50
265,537
36,794
3,127
8,610
95% over 50 columns
50
107,860
22,530
1,228
3,078
98% over 50 columns
50
68,600
17,579
763
1,782
100%
50
34,785
11,934
330
754
90% over 50 columns
100
81,065
15,339
733
1,695
95% over 50 columns
100
25,801
7,901
188
450
100%
100
4,919
2,475
20
61
100%
200
494
365
0
2

Counts indicate the number of HCNEs obtained by collapsing HCNEs onto the assembled chromosomes of selected reference genomes. HCNEs were counted in this way to reduce redundancy and thereby make counts more comparable between data sets. The underlying Ancora data sets are not biased by selecting either genome as a reference. Note that HCNEs are generally larger than the window size (30 or 50) used to identify them because the procedure that detects HCNEs merges overlapping conserved elements. NC, not calculated.

Engström et al. Genome Biology 2008 9:R34   doi:10.1186/gb-2008-9-2-r34