A-H: Lateral views of in situ hybridization specimens in which expression of rora1 (A-E) or rora2 (F-H) was detected. A: At the five-somite stage (12 hours postfertilization [hpf]). B: At the 18-somite stage (18 hpf). C,F: Expression of rora1 (C) was observed in the eyes and midbrain, but expression of rora2 (F) was not detected in 24 hpf specimens. D,G: Expression of rora1 (D) and rora2 (G) was similarly observed in the eyes and tectum, but only rora2 expression was observed in the hindbrain of 2 days postfertilization (dpf) specimens (G). H: Expression of rora2 in the cerebellum is observed in 3 dpf specimens.
|