Fig. 12
From: New insights into mesoderm and endoderm development, and the nature of the onychophoran blastopore
Expression of SoxF 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. Dashed circles mark the posterior pit region. Arrows in panel A point to scattered cells that express SoxF. Arrowheads point to expression in the embryonic slit. In all panels, the posterior pit is encircled. Developmental stages are indicated (staging system after [9], their supplementary data). Abbreviations: hl, head lobe