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Incoming links: Self-pollination
Cross-pollination Created 2026-10-14 Updated 2026-11-05
Transfer of pollen between different individuals of the same species; compare self-pollination.[ref]
32.2 Pollination and Fertilization. Biology 2e, §32.2 opening paragraphs: self-pollination and cross-pollination
A flower can contain both reproductive groups and still receive pollen from another individual. Conversely, transfer between two flowers on one plant does not by itself imply cross-pollination. Following the donor and recipient individuals makes pollination useful for studying genetics: organ position alone cannot identify whose alleles meet at fertilization.
Self-pollination Created 2026-10-14 Updated 2026-11-05
Self-pollination transfers pollen within one plant, either within a flower or between its flowers. It describes the transfer step, whereas self-fertilization requires successful fusion of gametes from the same individual.
A self-incompatibility system can prevent a self-pollination from yielding successful fertilization. Observing pollen on a stigma therefore does not by itself establish which parent produced a later seed.