Breakdown of sporophytic self-incompatibility: Diploids versus tetraploids

Many angiosperm species possess self-incompatibility (SI) systems that prevent self-fertilization.

Many angiosperm species possess self-incompatibility (SI) systems that prevent self-fertilization. Because empirical studies often report higher selfing rates in tetraploids than in diploids, we investigate whether sporophytic self-incompatibility (SSI) is more likely to break…