Loss of embryonic erythroid development inscl morphants. (A, B) Loss of gata1 expression as detected by ISH in the scl morphants at the 10-somite stage. (C) Co-injection of 300 pg of scl RNA rescued the gata1 expression. Loss of transcripts for runx1 (D, E) and c-myb (F, G) at the 10 somite stage, and βe3-globin transcripts at 24 hpf (H, I), in scl morphants. (J, K) Absence of circulating erythroid cells in the scl morphant embryos (arrow), in comparison to uninjected control embryos, as visualized under a dissecting microscope. Whole (A–C, H–I) or flat-mounted (D–G) embryos are shown with anterior to the left.
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