1887

Abstract

SUMMARY: In , protoplasmic incompatibility due to interactions between non-allelic genes was suppressed by the effect of mutations in two modifier genes, and It is shown that and are involved in the production of three specific proteins, a phenoloxidase and two previously identified proteases ( Bégueret & Bernet, 1973 ) which are associated with the phenomenon of protoplasmic disintegration. These enzymes, whose messengers are normally latent during vegetative growth, appear at this stage of the life cycle only as a consequence of incompatible gene interactions.

The and genes and each of the five incompatibility loci involved in non-allelic incompatibility systems also participate in the formation of the protoperithecia. This pleiotropic effect suggests that protoplasmic incompatibility is a deviation in the normal physiological processes of protoperithecial formation.

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1976-01-01
2021-08-02
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