Figure 1.

An atypical miR171 isoform targets the nodulation and mycorrhizal-associated NSP2 transcription factor gene. (a) Nucleotide alignment of distinct miR171 mature isoforms that are deposited in miRBase. Arabidopsis thaliana (ath), Brassisca napus (bra), Citrus sinensis (csi), Glycine max (gma), Medicago truncatula (mtr), Oryza sativa (osa), Populus tricocarpa (ptc) and Pinus taeda (pta). Highlighted nucleotides represent differences compared with consensus sequences. (b) Alignment of MtNSP2 mRNA with the canonical and novel isoforms of miR171, ath-miR171a, mtr-miR171b and mtr-miR171h. In each alignment, two dots represent a perfect match, and one represents a mismatch. The arrow indicates the cleavage site that was located by Devers et al [1].