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Evolution of nuclear DNA content. Oscheius sp. (DF5000) (A and C) and O. myriophila (B and D) differ in adult hypodermal DNA content at late adulthood. (A and B) Reconstructions of nematode nuclei based on confocal images of whole-mounted nematodes; white arrows indicate hypodermal nuclei (surrounded by larger intestinal and smaller neuronal nuclei). (C and D) Distribution of densitometrically estimated DNA contents of hypodermal nuclei; black arrowheads are means.
