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Fig. S1 Gene expression in LA1908 is not globally disrupted. A–D, Markers of neural (krox20, A, B) and hematopoietic (cmyb, C, D) differentiation were indistinguishable between wild type and mutant embryos. n = 20 embryos for each condition. E–F, Development was not generally delayed, as somite number was not significantly different between LA1908 mutant and wild type siblings (E). Rather, delay was specific to vascular tissues, exemplified by decreased ISV number in mutant versus wild type embryos at 21 hpf (F). Ten embryos were analyzed per condition. NS = not significantly different, * = p<0.00005.