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Fig. S3
Embryonic atrial cardiomyocytes contribute to the atrial wall and atrio-ventricular canal. (a) Maximum intensity projection of a z-stack from a 3 dpf heart expressing vmhc:mCherry-NTR and cmlc2:H2-EGFP. (b) Number of atrial cardiomyocytes in 3 dpf zebrafish hearts (mean +/- SEM, n = 4, with individual data points shown). (c) Surface myocardium from a 14 dpf amhc:CreER; priZm; cmlc2:H2-EGFP heart. An expanded view of the AV canal (AVC), dense with cardiomyocyte nuclei (white), is shown. Scale bars are 50 µm.
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