Figure 1
From: Epigenetic transmission of piRNAs through the female germline
The I-R hybrid dysgenic system. Crossing schemes represent (a) dysgenic and (b) non-dysgenic crosses. Despite identical genomes in SF and RSF females (chromosomes depicted schematically), the pools of their ovarian I-specific piRNAs (short wavy lines) are different. The approximate ratios of I-specific piRNAs in the ovaries of I and R mothers, in 0-2 hour embryos, and in the ovaries of SF and RSF daughters are shown. piRNAs that are antisense with respect to the I-element are in red; sense ones are in green.