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Fig. 3. Comparison of wild-type and tbx-37 tbx-38 embryos. Left and right columns compare wild-type embryos and tbx-37 tbx-38 embryos at identical stages with the same orientations. (A,B) Embryos undergoing morphogenesis, lateral view. Embryos are bent within the eggshell, head to the left and tail wrapped below the head. Anterior and posterior halves of the pharynx in A are indicated with brackets; the arrowhead indicates the rectum near the end of the tail. (C,D) Internal view of embryos immunostained for adherens junctions; labeling as above. (E,F) Surface view of embryos immunostained for adherens junctions. Note additional lateral cells (arrows) in the tbx-37 tbx-38 embryo. (G,H) Dorsal view of embryos prior to morphogenesis. Clones of cells derived from each of the four ABarp granddaughters are colored as follows: ABarpaa(magenta), ABarpap (green), ABarppa (yellow), ABarppp (blue). Descendants of the C cell (white) are indicated for reference. White arrow in H indicates surface gap created by the abnormal ingressions of some ABarpaa and ABarpap descendants. All embryos are approximately 50 µm in length.

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