Table 1.

Rescue of runx1 in cyclopamine-treated embryos by scl mRNA injection

Stages of cyclopamine treatment	Vehicle	cyc	scl (runx1 increased over vehicle)	scl + cyc
From 70% epiboly	73/73 (100%)	0/85 (0%)	29/35 (83%)	4/46 (9%)
From four-somite stage	47/47 (100%)	3/70 (4%)	32/43 (74%)	10/35 (29%)
From 10-somite stage	14/15 (93%)	4/47 (9%)	24/31 (77%)	33/54 (61%)

The fractions represent the number of embryos that have runx1 positive stains near the aorta over the total number of embryos, except for the scl injection control, which shows the efficiency of mRNA injection.