Table II. The AS forms of Mge transcripts from algae, moss, and higher plant species.

Mges from several higher plants have AS forms in one or both of the Mges. Note that AtMges do not have any AS form. However, AtMge2 highly resembles an intron 2-retained AS form.

Species	Gene	Exons	Description of AS Form	Accession No.
C. reinhardtii	CrMge1	6	AS form not detected	Au9.Cre08.g370450
P. patens	PpMge1	6	AS form not detected	Pp1s194_146V2
PpMge2	6	AS form not detected	Pp1s162_160V2
Arabidopsis	AtMge1	6	AS form not detected	At5g55200
AtMge2	5	AS form not detected; resembles intron 2 retention	At4g26780
Populus trichocarpa	PoMge1	6	AS form with exon 5 spliced out	POPTR_0011s09130
PoMge2	6	AS form with in-frame intron 2 retention	POPTR_0015s07680
Soybean	GmMge1	6	AS form not detected	Glyma18g10120
	GmMge2	6	AS form with in-frame intron 2 retention	Glyma02g46390
GmMge3	6	AS form not detected	Glyma08g43430
O. sativa	OsMge1	6	AS form not detected	LOC_Os09g11250
OsMge2	6	AS form with in-frame intron 2 retention	LOC_Os08g25090
S. bicolor	SbMge1	6	AS form not detected	Sb02g019590
SbMge2	6	AS form with in-frame intron 2 retention	Sb07g017190