Fig. 4From: Phylogenetic analysis and stress response of the plant U2 small nuclear ribonucleoprotein B″ gene familySummary of motifs that putatively occur in the promoter regions of plant U2B″. Triangles with various colours represent motifs. Motifs on the positive strand are labelled with an inverted triangle, whereas motifs on the negative strand with a normal triangle. The x-axis represents the length of the promoter sequence. Blue for dicotyledons, pink for monocotyledons, white for ferns, green for bryophytes, and yellow for algaeBack to article page