Fig. 5. Transient expression assays of the 2.2 kb upstream sequence injected into
L. variegatus eggs. (A) Microinjection of a LvEndo16-GFP
reporter construct resulted in fluorescence in the vegetal plate at the
mesenchyme blastula stage. (B) During gastrulation, fluorescence is detected
in the archenteron. (C) A ventral view showing fluorescence in the midgut of
the pluteus larva. (D) A lateral view showing fluorescence in both the midgut
and hindgut of the pluteus larva.