Question

What is self-incompatibility?

Answer 1

Self-incompatibility:

1. In angiosperms, self-incompatibility is a phenomenon that prohibits self-fertilization or inbreeding.
2. It is a genetic mechanism that prevents self-fertilization by suppressing pollen germination or pollen tube growth.
3. It is a critical outbreeding mechanism that prevents autogamy and results in allogamy.
4. It has been observed in over 300 species across 70 families.
5. It also prevents inbreeding depression caused by self-pollination.