Additional file 1: of Modification of pectoral fins occurs during the larva-to-juvenile transition in the mudskipper (Periophthalmus modestus)

Figure S1. Development of mudskipper embryos before hatching. (A–V) Mudskipper embryos at the otic vesicle stage (A–C; n = 2), brain vesicle stage (D–F; n = 2), heart chamber stage (G–I); n = 2, circulation stage (J, K; n = 2), eye pigmentation stage (L, M; n = 2), middle-pec stage (N, O; n = 2), high-pec stage (P, Q; n = 2), long fin-fold stage (R-T; n = 2), and hatching stage (U, V; n = 2). Lateral views of the embryo (A, D, G, J, L, N, P, R, U), the head (B, E, S, V), the tail (C, F, I, T), the trunk (H, O, Q), the eye (M), and the posterior region of the yolk (K, O). (E’, S′) Magnified images of the otic vesicle indicated in (E) and (S), respectively. (G’) A magnified image of the tail region of the same embryo as in (G). Arrowheads in (F, M) indicate melanophores and in (K) indicate blood cells. Open arrowheads in (E, F, G, M) indicate xanthophores. at, atrium; ccv, common cardinal vein; d, diencephalon; h, heart; lj, lower jaw; lp, lens primordium; mc, mesenchymal cell; mf, median fin; m, midbrain; nc, notochord; op, optic vesicle; ot, otolith; ov, otic vesicle; r, rhombomere; sb, swim bladder; t, telencephalon; uj, upper jaw; vt, ventricular. Scale bars, 100 μm in A-V, G’; 10 μm in E’, S′. (PDF 484 kb