Table 4

Distance of introns to the 3' end of genes

Lost introns

Conserved introns


n

Mean ± SD (kb)

n

Mean ± SD (kb)

Pa


Rats

86

1.11 ± 0.80

148,176

2.05 ± 1.99

8 × 10-9

Mice

45

2.66 ± 1.97

148,176

2.83 ± 3.14

0.414


Only the length of exonic sequences was calculated. aMann-Whitney U test was used to calculate the values of P. kb: kilobase; SD: standard deviation.

Zhu and Niu BMC Biology 2013 11:23   doi:10.1186/1741-7007-11-23

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