Table 1.

Statistics of SBT gene family members of four cotton species.

	Gossypium hirsutum				Gossypium barbadense				Gossypium arboreum	Gossypium raimondii
	A Subgenome	D Subgenome	Scaffold	Total	A Subgenome	D Subgenome	Scaffold	Total	A Genome	D Genome
SBT1	25	23	2	50	26	25	0	51	34	27
SBT2	7	7	0	14	7	8	0	15	8	8
SBT3	5	6	0	11	6	6	0	12	6	8
SBT4	14	24	0	38	11	15	1	27	27	23
SBT5	11	9	1	21	13	10	0	23	10	11
SBT6	7	5	0	12	4	6	0	11	4	7
Total	69	74	3	146	67	70	1	138	89	84