FIG. 5.

Expression of p18 mRNA in mouse embryos. Sagittal sections from E15.0 embryos were hybridized with the mouse p18 antisense RNA probe corresponding to the coding sequences common to both long and short transcripts (A, C, and E) or the 5′ UTR uniquely present in the long transcript (G, I, and K). Both dark-field (left) and corresponding bright-field (right) photographs are shown. Testis tissue was from 2-month-old mice (K and L). dp, diaphragm; ht, heart; lv, liver; lu, lung; sc, spinal cord; sm, skeletal muscle; ST, seminiferous tubule; ty, thymus; vc, vertebral cartilage.