Txnl4a knockdown affects neural crest formation. (A) Increasing amounts of Txnl4MO, 10 ng (+), 100 ng (++) and 500 ng (+++), block translation directed by txnl4a mRNA. (-) Translation without Txnl4MO. (B) Phenotype of Txnl4MO-injected embryos (30 ng) on neural crest (yellow arrows) and placode (red arrows) gene expression at stage 15. The gene analyzed in each panel is indicated in the lower left corner. D indicates dorsal view, anterior to top. L-cs indicates lateral view control side, anterior to left. L-is indicates lateral view injected side, anterior to right. (C) Quantification of the phenotypes. The numbers in each bar indicate the number of embryos analyzed. (D) sox10 expression in Txnl4MO-injected embryos is partially restored by expression of Xenopus Txnl4 resistant to the MO. The injected side is indicated by an asterisk. Dorsal views, anterior to top. (E) Quantification of the results. The numbers in each bar indicate the number of embryos analyzed. Statistically significant differences are indicated (*) p-value < 0.05 (Chi-squared test).