Figure 3.

Transgenic sperm can be easily traced in the reproductive tract of laboratory wild-type females. Mechanically opened spermatheca isolated from a laboratory wild-type female mated with a transgenic male with green fluorescent sperm [32], three days after death (A). Spermathecal duct dissected from a laboratory wild-type female mated to a transgenic male with green fluorescent sperm [32] 24 hours after mating (B). Images were captured using an epifluorescence Zeiss Axioplan microscope at 400x magnification with the Zeiss filters set 13.