Table 4. NKD BCS Enrichment in Differentially Expressed Gene Promoters.

	Motif	DE Genes	Transcriptome	P Valuea
Aleurone
	NKD1	194	3,064	P = 0.70
	NKD2	1,050	11,200	P ≤ 0.01
	NKDcore	816	10,684	P ≤ 0.01
Starchy endosperm
	NKD1	217	2,930	P ≤ 0.01
	NKD2	1,059	15,222	P = 0.95
	NKDcore	696	9,970	P = 0.982

The number of each motif’s occurrence in aleurone and starchy endosperm differentially expressed and RNA-seq detected (transcriptome) proximal promoter regions was determined. Motif enrichment in DE genes was assessed relative to the transcriptome.

^aFisher’s exact test.