Fig. 3
From: Panarthropod tiptop/teashirt and spalt orthologs and their potential role as “trunk”-selector genes
Early expression of Parasteatoda tiptop/teashirt. A, C, E, G, I and J represent ventral views and anterior to the left. B, D, F, H, K and L represent lateral views and anterior up. A´–L´ represent SYBR Green staining of the embryos shown in the corresponding A–L. Arrowheads mark the most anterior expression of tio/tsh. Arrows mark the most posterior extension of the anterior domain of expression. Bars in I–L indicate the position of the pedipalp-bearing segment that strongly expresses the anterior Hox gene proboscipedia-A (pbA). Note that there is no expression of tio/tsh anterior to the expression of pbA (I–L). Abbreviations as in Fig. 2