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Fig. 12 Comparison of rarga/rargb and rarga/rxraa gene expression in sox17:eGFP transgenic embryo. HCR shows the expression of rarga and rargb (A, A″, A‴, B, B″, B‴) and rarga/rxraa (C, C″, C‴, D, D″, D‴) genes at 24 hpf in relation to sox17:eGFP expression. At 24 hpf, both rarga and rargb have co-expression with sox17 within the pharyngeal endoderm and tail bud. rarga and rxraa are co-expression with sox17 within the pharyngeal endoderm and tail bud at 24 hpf. A-D‴: For panels A, A′, B, B′, C, C′, D, and D′, green and grayscale labels sox17:eGFP. For panels A, A″, B, B″, C, C″, D, and D″, magenta and grayscale label rarga expression. For panels A, A‴, B, and B‴, cyan and grayscale label rargb expression. For panels C, C‴, D, and D‴, cyan and grayscale label rxraa expression. Lateral views at 24 hpf. Arrows indicate co-expression between sox17:eGFP, rarga and either rargb (A-B‴) or rxraa (C-D‴) genes. The asterisks label the position of the otic vesicle. Scale Bar represents: 100um for images A-D‴.