Table 3. A comparison of intron length in the conserved intron retention events vs. nonconserved intron retention events across the species examined.

	Amborella	Arabidopsis	Banana	Brachypodium	Foxtail Millet	Maize	Oil Palm	Rice	Sorghum
Conserved AS
Mean	670	165	329	411	402	440	315	417	409
Median	390	96	143	233	237	207	131	269	256
No evidence for conserved AS
Mean	651	186	327	474	410	471	287	486	437
Median	316	113	131	245	201	205	121	247	242
Wilcoxon test
P value	***	***	NS	***	*	NS	*	NS	NS

(NS, Not significant; * P < 0.05, *** P < 0.001).