Table 1. The relationship of variation types of GmDREBL promoters and oil content.

variation type	number of soybean accession	oil content (%)	SD	Position (bp)
				−1823	−1442	−1324	−1120	−944	−404	−31
1	1	23.1		..TTTTTTATTTTTTTACTA……T	……GG	.GCATAA	TA	TTTGTCACCTGCCCC	GTTAGCATT	TTTT..A
2	51	18.2	3.20	..TTTTTTATTTTTTTACTAACTATAT	……GA	.GCATAA	..	……………	………	TTT…A
3	4	14.8	2.95	.TTTTTTTATTTTTTTACTA……T	……GG	.GCATAA	TA	……………	………	TTTT..A
4	4	13.0	1.34	.TTTATTTTTTTACTAACTA….TAT	……GG	.GCATAA	AA	……………	GTTAGCATT	TTTT..A
5	2	12.8	1.06	..TTTTTTATTTTCTTACTA……T	AGGTTCGG	.GTATAA	AA	……………	GTTAGCATT	TTTT..A
6	10	12.7	1.42	ATTTTTTTAATTTTTTACTAACTATAT	……GG	TGCATAT	AA	A…………..	GTTAGCATT	TTTTT.A
7	4	12.7	1.56	.TTTTTTTATTTTTTTACTAACTATAT	……GA	.GCATAA	..	……………	………	TTTT..A

Cultivated soybeans and wild soybeans of which their promoters clustered with cultivated soybeans have higher oil content compared to wild soybeans whose promoters clustered far away from the cultivated soybeans. Taking Williams 82 as reference sequence (variation type 2).