TABLE 1.

Numbers of TCP genes from different origins as classified by duplicate gene classifier in six representative euphyllophytes genomes.

Group	Species	Total	Singleton	Dispersed	Proximal	Tandem	WGD or segmental
Ferns	Alsophila spinulosa	32	0	16 (9/7)	3 (0/3)	2 (0/2)	11 (6/5)
Gymnosperms	Cycas panzhihuaensis	14	1 (0/1)	9 (3/6)	2 (1/1)	2 (0/2)	0
	Ginkgo biloba	16	2 (1/1)	10 (6/4)	2 (0/2)	2 (0/2)	0
	Pinus tabuliformis	29	0	18 (9/9)	9 (0/9)	2(0/2)	0
Angiosperms	Arabidopsis thaliana	24	4 (1/3)	14 (10/4)	0	0	6 (2/4)
	Oryza sativa	21	0	6 (2/4)	0	0	15 (8/7)

The numbers in the brackets indicate Class I and Class II TCP genes, respectively.