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Table 2 Number of evolutionary breakpoint intervals per chromosome and their characteristics.

From: Gene synteny comparisons between different vertebrates provide new insights into breakage and fusion events during mammalian karyotype evolution

Chromosome Number of intervals per breakpoint chromosome Length of all breakpoint intervals in Mb (% whole chromosome) Median length of breakpoint interval (Mb) Average length of breakpoint interval (Mb) Gene density, entire chromosome (genes/Mb)
1 47 11.89 (4.84) 0.11 0.25 8.67
2 46 17.87 (7.34) 0.15 0.40 5.66
3 45 13.60 (6.82) 0.14 0.30 5.58
4 21 8.78 (4.57) 0.12 0.42 4.35
5 42 18.24 (10.09) 0.17 0.43 5.11
6 28 6.24 (3.67) 0.12 0.23 6.48
7 37 8.21 (5.18) 0.11 0.23 6.25
8 30 9.94 (6.80) 0.21 0.34 5.06
9 20 6.31 (4.56) 0.23 0.33 6.54
10 20 7.39 (5.44) 0.11 0.39 6.05
11 31 8.58 (6.37) 0.16 0.28 10.36
12 17 3.06 (2.32) 0.13 0.18 8.34
13 9 2.32 (2.03) 0.14 0.26 3.14
14 11 2.87 (2.69) 0.11 0.26 6.23
15 16 2.12 (2.10) 0.06 0.13 6.57
16 12 4.21 (4.73) 0.03 0.38 10.33
17 31 5.63 (7.13) 0.09 0.19 15.70
18 11 7.71 (10.16) 0.59 0.77 3.86
19 17 1.49 (2.34) 0.05 0.09 22.47
20 20 3.21 (5.14) 0.07 0.17 9.72
21 6 0.46 (0.98) 0.04 0.08 5.79
22 9 1.60 (3.23) 0.12 0.18 10.28
sum 526 151.73 0.12 0.29