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Fig. 3 Expression during pharyngula stages (24–48 hpf). (A, B) Prim-5 stage (24 hpf). (A) Ventral view of the heart primordium with rostral toward the top, showing expression in the endocardium (ec). (B) Lateral view of the trunk region (rostral to the left) showing expression in midline vasculature (arrowhead). Expression is also detectable in the ventral mesoderm (vm). (C, D) Prim-25 stage (36 hpf). (C) Expression in the telencephalon (t), pharyngeal arch mesenchyme (arrowheads in C, D), and proximal fin buds (arrow in C). (D) Higher magnification ventral view of the larva in (C), showing expression in the pharyngeal arches (p1 and p2 and arrowhead). (E, F) Expression in the neuroepithelium at 48 hpf. (E) Dorsal view with rostral toward the top, showing expression in the olfactory bulb adjacent to the nasal pits (np). (F) Lateral view showing expression in the rostral hindbrain, adjacent to the cerebellum (c). Abbreviations: floor plate (fp), heart (h), myocardium (mc), otic vesicle (ov), notochord (n), spinal cord (sc).
Reprinted from Mechanisms of Development, (Suppl.) 119, Lane, M.E., Runko, A.P., Roy, N.M., and Sagerström, C.G., Dynamic expression and regulation by Fgf8 and Pou2 of the zebrafish LIM-only gene, lmo4, S185-S189, Copyright (2002) with permission from Elsevier. Full text @ Mech. Dev.