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(A–D) Lateral view of Stg13 embryos carrying the CVM marker croc-LacZ double-stained with anti-βGal (red) and anti-Ndg (green) antibodies. (A) In wild type embryos Ndg is found at the edges of vm (pink brackets) along the path of migrating CVM cells. This distribution is affected in βPS (B), αPS2 (C) but not αPS1 (D) mutant embryos.
