FIGURE 2.

Maternal piRNAs and ping-pong signatures in silkworm embryos. (A) Log2 fold ratio between normalized ovarian and 0 hpf-derived piRNA reads against 60 well annotated transposons. An element lacking statistically significant ping-pong signature is represented by white bar. (B) Relationships between maternal deposition and % ping-pong in pharate ovary are displayed as a scatter plot. Maternal deposition is defined as normalized early (0 hpf) embryonic reads/normalized ovarian piRNA reads. % ping-pong is expressed as the likelihood for the average piRNA mapping to an individual transposon with ping-pong partners.