Fig. 10

Expression of Wnt7 genes in true spiders. Expression of Wnt7 in Parasteatoda (A–D (Wnt7.1), E–G (Wnt7.2)), and  Pholcus (H, I (Wnt7.1), J–N (Wnt7.2)). In all panels (except panel N), anterior is to the left. Panels A, B, H, I, K and M show lateral views. Panels C, D, F, G, J and L ventral views. Panels E and N show anterior views; in panel N anterior is up. The inlay in panel B shows the SAZ of a slightly older embryo. Panels indicated with an apostrophe represent SYBR-green staining of the embryos in corresponding panels. Developmental stages are indicated. In all panels, arrows mark expression dorsal to the base of the limbs. The arrowhead in panel M points to expression in the ventral nervous system. Expression patterns are summarized in panel O, anterior is up. Abbreviations as in Fig. 4