vegfaa mRNA injections can rescue vegfaa mutants to adult viability. (A) Schematic representation of Vegf molecules binding to their receptors. (B,E) Brightfield micrographs of 72-hpf vegfaa^bns1 mutants injected with indicated mRNA in lateral views. Arrow points to pericardial edema. (C,D,F,G) Confocal micrographs of 72-hpf TgBAC(etv2:EGFP);vegfaa^bns1 mutants injected with indicated mRNA in lateral views. Arrows point to lumenized vessel. Bars represent 100 µm.