*4.4. Cis-Element Analysis of Trihelix Transcription Factor Family*

Promoters of the trihelix family genes were downloaded from the Phytozome database (https: //phytozome.jgi.doe.gov/pz/portal.html#) [48]. The PLACE database (https://sogo.dna.affrc.go.jp/) was used to analyze the *cis*-regulatory elements of the trihelix family gene promoters [49].
