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Amphid sheath glia undergo fragmentation in dig-1 mutants. Heads of (A) wild-type and (B) dig-1(n1321) animals at the L1, L4, and 2A stages, showing progressive fragmentation of amphid sheath in L4 and 2A dig-1 animals. Animals express F16F9.3pro:mCherry, pseudocolored green. Schematics of amphid sheath glia are shown on the right. (C) 2× magnification of boxed regions in (A,B). (D) Quantification of phenotype penetrance at each stage. n = 20 animals per genotype at each stage.
