Figure 8.

Phased siRNAs from sense strand of CHS-A exon 2. Data in upper and lower panels were obtained from white portions of J-type and Red Star petals, respectively. Presence/absence of 21-nt siRNAs was analyzed in 21 phases independently. The results of each phase are marked 1–21: the first nucleotide of “phase 1” corresponds to the first and last nucleotides of the CHS-A reference sequence (see Methods) for sense and antisense strands, respectively. Blue lines: regions producing phased siRNAs of three or more contiguous units. Red dots: 5′ or 3′ ends of phased-siRNA producing regions that are common to J-type and Red Star petals.