Self-incompatibility in Brassica is controlled by a single multiallelic locus (designated as S locus) that is responsible for pollen recognition on the stigma surface.

• 摘要芸薹属植物自交不亲和性受单一位点的复等位基因控制，此位点命名为S位点。它决定柱头表面花粉识别的专一性。