Figure 2. Localization of
let-418 and
chd-3 mRNAs. Embryos were examined by in situ hybridization. Positive staining is indicated by the dark color. (A-C) embryos were hybridized with a
let-418 antisense probe. (A)
let-418 maternal RNA is detected in 2-cell embryos. (B) In 28-cell embryos, hybridization appears to be uniform in all cells. (E-G) embryos were hybridized with antisense probe to
chd-3. (E) No RNA is detected in 2-cell embryos. (F) 28-cell embryo showing hybridization in all somatic cells. (D,H) No hybridization was observed in embryos hybridized with a
let-418 sense probe (compare D and C) and
chd-3 sense probe (compare H and G). C. elegans embryos are approximately 45 µm in length.