ZFIN Image: Lu et al., 2017, Fig. 7

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Fig. 7

Zebrafish Twa1 is essential for dorsoventral patterning during embryogenesis. Zebrafish embryos at the one-cell stage injected with the indicated morpholinos targeting Twa1a and Twa1b (Twa1a-MO and Twa1b-MO) or mRNAs were harvested at the different times, and subjected to the following analyses. (A, B) Microscopy showed the different types of embryos at 24 h post-fertilization (hpf). The classes 1-3 represent increasing degrees of phenotypic severity in eye and brain structures. The percentages of embryos with the different classes are shown. (C-F) Whole-mount in situ hybridization of the dorsal (gsc, chordin and otx2) and ventral (gata2 and eve1) markers and the Wnt target gene boz. The percentages of embryos with abnormal expression of the indicated markers are also presented. β-Cat2, β-catenin 2; boz, bozozok; n, number of observed embryos; Twa1a^*, zebrafish Twa1a-MO-resistant mRNA; Twa1a-ΔCRA^*, zebrafish Twa1a-MO-resistant mRNA without CRA domain; Twa1b^*, zebrafish Twa1b-MO-resistant mRNA.

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Acknowledgments

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