Abstract:Upon fertilization, germ cells are reprogrammed to acquire the ability to develop into an entire organism. Whereas extensive studies have focused on epigenetic reprogramming of chromatin states during development, changes of the nucleus that surrounds chromatin are ill-defined. Here, we show that nuclei become structurally and mechanically vulnerable at the 2-cell stage during mouse embryonic development. The 2-cell stage nuclei are extraordinarily plastic and deformable in contrast to those of 1-cell and 4-ce… Show more
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