Table 1. Functional annotation of 10 hub transcription factors in the WGCNA darkgreen cluster.

Hub Transcription Factorα	Transcription Factor Family	Functional Annotation β
AT1G09540	MYB	vasculature development; xylem development
AT1G32770	NAC	lignin biosynthetic process; plant-type secondary cell wall biogenesis
AT4G28500	NAC	secondary cell wall biogenesis
AT4G29230	NAC	multicellular organism development; secondary cell wall biogenesis
AT2G01940	C2H2	auxin biosynthesis and transport
AT4G30080	ARF	auxin-activated signaling pathway; cell division
AT1G75240	ZF-HD	abscisic acid-activated signaling pathway
AT1G78700	BES1	brassinosteroid mediated signaling pathway
AT3G12250	bZIP	systemic acquired resistance
AT5G12870	MYB	defense response to fungus; plant-type secondary cell wall biogenesis

^α: transferred TAIR ID.

^β: functional ontology term summarized on Arabidopsis gene function description on TAIR database (https://www.arabidopsis.org).