Table 2.

The number of TFs across the maize genome and their enrichments in G × N interaction genes

Type	# in G × N genes lista	# expressed in GrassTFDBb	P value
Total number of TFs	21	1477	3.20e−05**
AP2/EREBP	5	96	1.31e−04**
WRKY	3	85	8.49e−03**
Total number of genes	96	20,685

TF transcription factors

** Significant at P < 0.01

^aNumber of transcription factors showing significant G × N interactions

^bNumber of expressed transcription factors (transcription factors were annotated by GrassTFDB database)