Fig. 4. Tissue specific expression of opsin genes in adult red spotted grouper. M, 100 bp DNA ladder marker; NC, negative control; FB, forebrain; MB, midbrain; HB, hindbrain, Pt, pituitary; Re, retina; Gi, gill; H, heart; Ki, kidney; Sp, spleen; G, gonad; In, intestine; Mu, muscles (including the lateral line); T, tongue; SWS2, short-wavelength sensitive opsin; MWS, middle-wavelength sensitive opsin; LWS, long-wavelength sensitive opsin.
