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Epigenetic asymmetry in plant gametes

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Plants differ from animals in their continuous development, flexible and reversible differentiation, the absence of a germline, and the alternation of haploid and diploid generations. Despite these differences, both plants and animals have evolved complex mechanisms that act to ensure successful reproduction and, after fertilization, cause parent of origin and chromosome dosage effects for specific genes. However, only the endosperm component of the seed in plants is regulated in such a manner, while the embryo can escape such surveillance. Epigenetic information present in plant gametes are responsible for parent of origin effects during endosperm development and might provide the basis for the distinct developmental pathways followed by the embryo and endosperm within the plant seed.

This talk is part of the Plant Sciences Departmental Seminars series.

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