A change in the cell wall status initiates the elimination of the nucellus in Arabidopsis

Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. <br/>SignificanceSeeds evolved when plants retained the female spores inside the parent tissue. The growth of the spores was accommodated by removing part of the nucellus, the maternal tissue responsible for female meiosis. Here, we demonstrate that …