Fig. 6
From: New insights into mesoderm and endoderm development, and the nature of the onychophoran blastopore
Expression of Tbrain-like In all panels, anterior is to the left, ventral views. Panels A´–C´ represent SYBR Green staining of the embryos shown in panels A–C. Arrows point to expression in the embryonic slit. Dashed circles mark the position of the posterior pit. Asterisks in panel C mark expression in the the anterior tissue of the developing embryo that could be associated with the developing brain. Developmental stages are indicated (staging system after [9], their supplementary data). Abbreviations: pp, posterior pit