Table 3. Size of the WRKY groups and sub-groups in different plant species.

	Group I	Group II					Group III	NG	Total
		IIa	IIb	IIc	IId	IIe
Grapevine	12	3	8	15	6	7	6	2	59
Arabidopsisa	16	3	8	17	7	8	14	1	74
Riceb	15	4	8	15	7	11	36		96
Castor beanc	9	3	10	12	3	5	5		47
Poplard	50	5	9	13	13	4	10		104
Tomatoe	15	5	8	16	6	17	11	3	81

^aAccording to Ulker and Somssich.⁶

^bAccording to Xie et al.³⁶

^cAccording to Li et al.⁸⁹

^dAccoring to He et al.⁶⁵

^eAccording to Huang et al.⁶⁶