
Figure 1.
Expression patterns of genes involved in dorso–ventral patterning. Embryos are oriented with anterior-left, dorsal-up. Scale bars, 100 μm. (A) Expression of honey bee Tl RNA in a stage 2 embryo. Honey bee Tl is expressed only in anterior/ventral regions of the embryo. (B) Expression of honey bee snail RNA in a stage 3 embryo.











