Fig. S1
Zebrafish drl is transcribed earlier than traditional blood markers, labels the forming lateral mesoderm, and subsequently restricts expression into cardiovascular and hematopoietic lineages. Panel of classic marker genes expressed in hematopoietic populations, scale bars = 200 µm; the epiboly-stage embryo is animal to the top, ventral (V) to the right, dorsal (D) to the left; later stages (flat mounts and 24 hpf whole mounts) are anterior (A) to the left, posterior (P) to the right; note prominent expression of all genes in the Intermediate Cell Mass (ICM) at 24 hpf, except the myeloid marker pu.1 which is expressed in the anterior myeloid precursors. |