Table 2. Conserved AS clusters among different species and clades.

	Total	IntronR	AltA	AltD	ExonS	ATE
Conserved between Amborella and other species	1816	1015	450	205	114	32
Conserved in Amborella, Arabidopsis, and at least one species of monocots	129	64	43	11	10	1
Conserved between Amborella and Arabidopsis not in monocots	80	34	31	11	4	0
Conserved across Amborella and seven monocot not in Arabidopsis	9	2	3	2	2	0
Conserved in banana, African oil palm and at least one grass species	239	162	44	20	11	2
Conserved across five species in grass	224	60	106	37	21	0
Conserved across seven species in monocots	34	13	12	5	4	0
Conserved between PACMAD and BEP cladesa	4333	2548	1052	480	177	76

^aConserved at least one species in PCAMAD clade and one species in BEP clade.