Gametophytic apomixis is a common form of asexual reproduction in plants. Virtually all gametophytic apomicts are polypioids, and some view polyploidy as a prerequisite for the transition to apomixis.
Ament-Velásquez, S. L., Figuet, E., Ballenghien, M., Zattara, Eduardo E., Norenburg, Jon L., Fernández-Álvarez, F. A., Bierne, J., Bierne, N., and Galtier, N. 2016 ...
In 1950, G. Ledyard Stebbins devoted two chapters of his book Variation and Evolution in Plants (Columbia Univ. Press, New York) to polyploidy, one on occurrence and nature and one on distribution and ...