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Fig. S13 p53 MO co-injection does not alter rbm24a and rbm24 morphant phenotypes. Phenotypes were evaluated for embryos post injection rbm24a MO (5 ng) or rbm24b MO (8 ng) alone or in conjunction with p53 MO (1 ng) phenotypes were compared at 48, 72 & 96 hpf. Lateral heart views are shown with a dotted outline around embryo heart chambers. No cardiac phenotype is detected for p53 MO embryos compared to uninjected controls at any time point (A-B, G, H, M, N). At all time points rbm24a morphants maintain unlooped hearts and display cardiac edema in the presence of p53 MO (C, D, I, J, O, P). Morphant phenotype was also maintained between rbm24b morphants in the presence of p53 MO (E, F, K, L, Q, R). v, ventricle; a, atrium; black arrows, cardiac edema.