FLP-mediated removal of extraneous sequences (A) Schematic representation of FLP-mediated removal of extraneous sequences. FLP-mediated removal of extraneous.

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FLP-mediated removal of extraneous sequences (A) Schematic representation of FLP-mediated removal of extraneous sequences. FLP-mediated removal of extraneous sequences (A) Schematic representation of FLP-mediated removal of extraneous sequences. (B) Schematic representation of the attP-landing site in chromosome 13 before and after phiC31 integrase-mediated integration of the Pzhsp70-mCherry-pA as well as subsequent FLP-mediated removal of extraneous sequences. (C) Typical observations of mCherry and EGFP fluorescence emitted by transgenic G0 fish carrying the Pzhsp70-mCherry-pA at an attP-landing site before (-) or after (+) FLP-mediated removal of extraneous sequences. Scale bar: 1 mm. (D) Transgenic fish harboring the Pzhsp70-mCherry-pA at the attP-landing site were incrossed, and one-cell-stage embryos were microinjected with 100 ng/µl of FLP mRNA. The 45 surviving embryos were observed at 5 dpf for mCherry and EGFP fluorescence after heat shock. (E) Survival rates at 5 dpf of embryos microinjected with 100 ng/μl of FLP mRNA. (F) Genomic PCR using the three primer pairs of three types of embryos with the attP-landing site structure shown in (B). Tokiro Ishikawa et al. G3 2018;8:2585-2593 ©2018 by Genetics Society of America