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Fig. 2. Gastrulation phenotype of Chrd-/- embryos. (A)
Wild-type and (A') mutant embryos at early somite stage. In the mutant,
the body is reduced and the allantois (al) proportionally enlarged.
(B-D') Sections through wild-type (B-D) and mutant embryos
(B'-D') at the levels indicated in A and A'. Note the poorly
differentiated neural plate (np) of the mutant (B') and its lack of
trunk mesoderm (C'). (D') The increase in extra-embryonic
mesodermal cells in the allantois of the mutant. so, somite.
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