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Table 3 Evolutionary course of pairs among different groups

From: Functional importance of different patterns of correlation between adjacent cassette exons in human and mouse

  

conserved

duplication

repeats

Exon age difference *

     

Upstream young

equal

Upstream old

human mouse

ME

18 (30.0%)

24 (40.0%)

8 (13.3%)

17

33

10

 

IND

16 (1.41%)

29 (2.55%)

356 (31.3%)

419

460

258

 

LNK

40 (4.18%)

25 (2.61%)

55 (5.74%)

125

741

91

 

ME

18 (30.0%)

25 (41.7%)

6 (10.0%)

18

31

11

 

IND

18 (4.25%)

6 (1.42%)

100 (23.6%)

154

195

75

 

LNK

56 (10.1%)

11 (2.17%)

12 (2.37%)

74

389

44

  1. * Each exon in the adjacent pairs is assigned an age label: "young", "middle" and "old". The "Upstream young" means the number of pair in which the upstream exon is younger than the downstream one. The "equal" means the number of pair in which the two exons are of equal age. The "Upstream old" means the number of rest pair with an older upstream exon.