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Fig. 9
FGF signaling is required for the promotion of myocardial, but not endocardial, fate by the cBAF complex. (A-F) Transgenic myl7:EGFP donor embryos injected with gata5/smarcd3b RNA and tetramethylrhodamine dextran bearing (A-C) and not bearing (D-F) a hsp:dnfgfr1-EGFP transgene were transplanted to the animal pole of wild-type host embryos at 4 hpf, with heat-shock subsequently applied at 6 hpf. (G-L) Experiments were performed as in A-F, with donors carrying a kdrl:EGFP transgene in place of myl7:EGFP. All images are lateral views of 48 hpf embryos with anterior towards the top.
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