Fig. S2
Visualization of head muscle and hypobranchial endothelial progenitors in the mandibular arch.
(A-I) Singles planes from confocal Z-stacks shown in Figure 2A (A-C) and Figure 2E (D-I). The (*)s in (D,G) highlight the dorsal mesodermal core of pharyngeal arch (PA) 1, which is devoid of ZsYellow+ cells. Lateral views, anterior left. (J-L) Single plane from confocal Z-stack of PA2 in 32 hours post fertilization (hpf) Tg(sox10:gfp); Tg(nkx2.5:ZsYellow) double transgenic embryo. Dorsal views, anterior up. For both experiments, 3/3 animals exhibited ZsYellow fluorescence in the described locations. Numbers label the pharyngeal arches; Abbreviations: v, ventral cluster. Scale bars=25µm.