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Fig. S2
Sarcomere organization in G1 cardiomyocytes.
(A-A") Three-dimentional reconstruction of a 96 hpf Tg(myl7:actn3b-EGFP); Tg(myl7:mcherry-cdt1) heart injected with myl7:BFP-CAAX plasmid to label individual cardiomyocytes. (B-B") Close-up of a cardiomyocyte in G1 phase, as labeled by mCherry+ nucleus; note the continuous sarcomeric striations throughout the cardiomyocyte. (C-C") Close-up of a myl7:mCherry-cdt1- cardiomyocyte; the sarcomeres do not occupy the whole cardiomyocyte, but are mostly located at the periphery of the cell. Scale bars, 20 µm.
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