Heat map showing the relationship between rhizome related differentially expressed genes (DEGs) and hormone target genes.

<p>The heat map was produced by analyzing genes comprising rhizome related DEGs for methyl jasmonate (MJ), ethylene (C<i>2</i>H<i>4</i>), abscisic acid (ABA), auxin (AUX), gibberellic acid (GA), zeatin, brassinosteroids (BR), and salicylic acid (SA). Subfigures a–g represent the seven gene sets analyzed: DEGs of RT vs. ST in <i>O. longistaminata</i> from (a) transcriptome sequencing and (c) microarray analysis, and (e) results of the present study in <i>S. propinquum</i>; DEGs of underground tissues (RT and RI) vs. above-ground tissues (ST, SI, and YL) in <i>O. longistaminata</i> from (b) transcriptome sequencing and (d) microarray analysis, and (f) results of the present study in <i>S. propinquum</i>; and (g) candidate rhizome-enriched genes in <i>S. halepense</i> (pSH) and <i>S. propinquum</i>. In the HORMONOMETER analysis, orange (1) = complete correlation, white (0) = no correlation, and blue (-1) = anti-correlation.