Fig. 6 Fgfrl1a is essential for chondrogenesis within the ceratobranchial arches. (A/C and B/D) sox9a expression within pharyngeal domain of 60 hpf wildtype and Fgfrl1a morphant larvae, respectively. (A/B and C/D) Lateral views and equivalent sagittal sections, respectively. Asterisk in B marks absence of expression within branchial arches. (E/G and F/H) runx2b expression within pharyngeal region of 54 hpf wildtype and Fgfrl1a morphant larvae, respectively. (E/F and G/H) Lateral and dorsal views, respectively. Abbreviations: B, branchial arches; cb1–5, ceratobranchial arches 1–5; Cl, cleithrum; EP, ethmoid plate; H, hyoid arch; M, mandibular arch. Scale bars: 100 μm in A–H.
Reprinted from Mechanisms of Development, 123(12), Hall, C., Flores, M.V., Murison, G., Crosier, K., and Crosier, P., An essential role for zebrafish Fgfrl1 during gill cartilage development, 925-940, Copyright (2006) with permission from Elsevier. Full text @ Mech. Dev.