From: Frequency of intron loss correlates with processed pseudogene abundance: a novel strategy to test the reverse transcriptase model of intron loss
Lost introns
Conserved introns
n
Mean ± SD (kb)
P a
Rats
86
1.11 ± 0.80
148,176
2.05 ± 1.99
8 × 10-9
Mice
45
2.66 ± 1.97
2.83 ± 3.14
0.414