Abstract:After double fertilization, the endosperm in many flowering plants undergoes repeated mitotic nuclear divisions without cytokinesis, resulting in a large coenocytic endosperm that then cellularizes. Growth during the coenocytic phase is strongly associated with the final seed size; however, detailed cellular dynamics controlling the unique coenocytic development in flowering plants have remained elusive. Integrating confocal microscopy live-cell imaging and genetics, we characterized the entire development of … Show more
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