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Fig. S5
The EI region is necessary to enhance fin ray mesenchymal-specific expression even without the epi repressor.
(A) Distal fin ray mesenchymal-specific expression does not occur in all fin rays. Reporter expression is bright and consistent in all fin rays in Tg(2P-EIand1:eGFP) (B), and in two different Tg(2PΔepi-EIand1:eGFP) lines (C, D). Red arrows indicate presence of fin ray-specific expression while asterisk indicates absence of expression. Scale bar = 200μm.
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