Figure 2.

Phylogenetic tree, gene structures and conserved motifs of the CclSBPs. (a) Phylogenetic tree was constructed based on 15 citrus SBP-box protein sequences; (b) exon-intron structures of the CclSBPs. Introns are represented by lines. Exons are indicated by yellow boxes; (c) distribution of the conserved motifs in the CclSBPs. Motifs represented with boxes are predicted using Multiple Em for Motif Elicitation (MEME). The number in the boxes (1–8) represents motif 1–motif 8, respectively. Box size indicates the length of the motifs; (d) Multiple alignment of the CclmiR156 complementary sequence with 10 CclSBPs and their binding site position.