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. 2019 Jan 23;31(2):444–464. doi: 10.1105/tpc.18.00511

Figure 8.

Figure 8.

AtSPO11-1–Dependent sRNAs Show Enrichment at Meiotic CO-Associated DNA Motifs.

(A) Density plot of AtSPO11-1–dependent sRNAs and AtSPO11-1 oligos (Choi et al., 2018) on the five Arabidopsis chromosomes (black bars with circles marking centromeres). sRNA density on the sense strand shows a positive value (plotted in black), while sRNA density on the antisense strand shows a negative value (plotted in gray) per 10 kb. Chromosomes are portioned into arm regions and centromeric regions (green dashed lines). The sRNA density is compared to the density of AtSPO11-1 oligos per 10 kb (red curve).

(B) Meiotic recombination-associated CTT repeat motif is enriched with meiocyte-specific and AtSPO11-1–dependent sRNAs from gene body regions.

(C) Meiotic recombination-associated A-rich motif is enriched with meiocyte/leaf-shared and AtSPO11-1–dependent sRNAs from promoter regions.