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Fig. 1 Cre-mediated recombination of the Tg(hsp70l:Cre) allele in the red-to-green reporter line in the absence and presence of heat. A: Scheme of the transgene combination of the embryos depicted in B and C. B: In the absence of heat, the combination of the Tg(hsp70l:Cre) allele with the red-to-green reporter line results in strong DsRed2 and mosaic EGFP expression in double transgenic embryos. C:In contrast, brief heat induction at mid-gastrulation stages results in reduced DsRed2 and strong ubiquitous EGFP expression in double transgenic embryos. B,C: Lateral views of live 24-hpf embryos.
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