Figure 3.

Number of paternal genomes p in the endosperm (expressed as the multiple of the holoploid genome of the pollen recipient) of seeds obtained in hetero‐ and homoploid crosses of Potentilla puberula. Seeds obtained in crosses upon tetraploid pollen recipients were derived by sexuality, those obtained in the other crosses originated from apomixis. Significant deviation of the observed paternal genomic contribution to the endosperm in the homoploid treatments from the values theoretically expected (1p for sexual, 1p and 2p for apomicts) due to inherent systematic methodological error is indicated. Analogously deviation of the paternal genomic contribution observed for the heteroploid treatments from the values observed in the homoploid crosses is indicated. Pollen recipients are represented by the x‐axis; pollen donors by the y‐axis. Tetraploids were crossed with tetra‐, penta‐, and heptaploids only. **p < .01, ***p < .001