Fig. 3

Expression of Tribolium, Glomeris and Euperipatoides Dichaete. In all panels, anterior is to the left. All panels, ventral views, except for panel o (lateral view). a-e Expression of Tribolium Dichaete. f-i Expression of Glomeris Dichaete; j-o Expression of Euperipatoides Dichaete-like. Developmental stages are indicated for Tribolium (after Strobl and Stelzer [27]), Glomeris (after Janssen et al. [26] ), and Euperipatoides (after Janssen and Budd [23]). Asterisk in panel a marks ventral expression (cf. expression of SoxN, Fig. 2a). Arrows in panels b-e, and arrowheads in panels c-e as in Fig. 2. Arrows and arrowheads in panel n point to different patterns of expression in the VNS. Abbreviations as in Fig. 2, and T1, first trunk segment