Figure 2.

Conservation of auxRE Variants.

(A) Genes and motif variants showing significant conservation. Each column represents a specific dinucleotide variant of the TGTCNN motif, and the color indicates the significance of conservation of the particular variant.

(B) GO term enrichment of genes with a conserved auxRE variant in their promoters. Pval, P-value.

(C) Auxin responsiveness of genes with conserved auxRE variants in different tissues and species. Heatmap on the left shows the log₂FoldChange (log₂FC) of auxin-treated versus control samples. Heatmap on the right shows the particular conserved variants found in the promoter of the matching gene. Red marks auxin induced (log₂FC > 1.5), blue marks auxin repressed (log₂FC < 0.75).

(D) and (E) Conservation of the auxRE motif position for each gene for the 45 angiosperms species (D) and the mean conservation across all promoters (E). High values (red) represent high conservation of position of the motif.