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Fig. 3 Expression of agtrl1a during segmentation and pharyngula stages in situ transcript hybridisations showing agtrl1a expression in embryos from 14 to 24 hpf. (A) Dorsal axial view of 14 hpf embryo. Expression is observed in the epithelium covering the retina (lens primordium, lp), putative vascular precursors (vp) lateral to mid- and hindbrain, in otic vesicles (ov), in somitic epithelia (se), presomitic mesoderm (psm) and adaxial cells (ad). (B) Lateral view of head of embryo in A. (C) Lateral view of an embryo at 18.5 hpf showing agtrl1a expression in otic vesicles (ov), tail fin primordium (tfp), presomitic mesoderm (psm) and the most recently formed somite epithelium (se). (D) Transverse section at the level of the diencephalon (di) at 24 hpf showing expression in the developing lens (l). Dorsal is up. (E) Lateral view of the developing head of an embryo at 24 hpf showing agtrl1a expression in developing vasculature. The primordial midbrain channel (pmbc), middle cerebral vein (mcev) and developing eye (ey) are indicated. (F) Lateral view of the yolk extension and cloaca region of an embryo at 24 hpf showing expression in the primary caudal vein (pcv) and intermediate cell mass (icm). (G) Transverse section at the level of the yolk extension at 24 hpf showing expression in the primary caudal vein. (H–J) agtrl1a expression in the pharyngeal endoderm (pe) in wt (H), is absent in cas (I) and oep (J) embryos (asterisk) at 24 hpf seen in lateral oblique view, anterior to left.
Reprinted from Gene expression patterns : GEP, 7(3), Tucker, B., Hepperle, C., Kortschak, D., Rainbird, B., Wells, S., Oates, A.C., and Lardelli, M., Zebrafish Angiotensin II Receptor-like 1a (agtrl1a) is expressed in migrating hypoblast, vasculature, and in multiple embryonic epithelia, 258-265, Copyright (2007) with permission from Elsevier. Full text @ Gene Expr. Patterns