Figure 7
Expression of E. kanangrensis Wnt6 and Wnt7. (A-D) Expression of Wnt6; (E-I) Expression of Wnt7. In (A-G), anterior is to the left; in (H) and (I), anterior is up. (A) Dorsal view. Arrow indicates expression in the tip of the developing frontal appendage. (B) Lateral view. Arrows indicate expression in the ventral nervous system. (C) Ventral view. Close-up of the jaw- and slime papillae-bearing segments. Arrow indicates staining in the salivary gland. Asterisk marks transverse ventral stripe. Note that it is level with the salivary gland. (D) Ventral view. Close-up of the anterior part of an embryo. (E) Lateral view. (F) Ventrolateral view. Arrowhead indicates expression between the limbs. Arrow indicates the same expression in a younger (more posterior) segment. Note the transformation of this expression domain from younger towards older segments. (G) Close-up of segmentally reiterated mesodermal expression in the trunk. (H) Ventral view. Asterisk marks expression in the ventral nervous system. (I) Ventral view. Asterisk marks expression in the ventral nervous system. (C′) represents DAPI staining of the embryo of (C). fap, frontal appendage; hl, head lobe; j, jaw; L1 to L3, first to third walking-limb-bearing segments; sp, slime papilla; st, stage.