Distribution of rice nat-siRNAs with distribution pattern OS03G02762/OS03G02770 (a) and OS08G06220/OS08G06230 (b) or site-specific pattern OS04G57140/OS04G57160 (c). Strands above or under the NAT pairs represent sRNAs positively or negatively mapping to the upper strands. In the gene model, exons and introns are indicated by red regions and blue regions, respectively. The overlapping regions of the NATs are indicated by green lines.
Zhang et al. Genome Biology 2012 13:R20 doi:10.1186/gb-2012-13-3-r20