Inheritance of self-incompatibility in Plantago lanceolata

Abstract

Plantago lznceo1ata is self-incompatible and gynodioecious, and a knowledge of the genetics of these two systems may help in understanding why male sterility is present when self-incompatibility alone is sufficient to ensure crossing. This paper reports on the inheritance of self-incompatibility. Self-incompatibility is inherited through one gene with at least four alleles. Matings are incompatible if the pollen carries either of the two alleles present in the style. Control of the pollen incompatibility reaction is gametophytic, and there is individual action of the alleles present in the style. © 1973, The Genetical Society of Great Britain. All rights reserved.