Summary
A randomly-drawn sample of 51 plants from a natural population (R106) carried between them 31 different S-alleles whose frequencies were, contrary to theoretical expectation, significantly unequal. Two alternative hypotheses are proposed to account for this unexpected observation. One of the eleven S3 alleles found in the experiment appeared to be a stigma part mutant of the revertant type.
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Campbell, J., Lawrence, M. The population genetics of the self-incompatibility polymorphism in Papaver rhoeas. II. The number and frequency of S-alleles in a natural population (R106). Heredity 46, 81–90 (1981). https://doi.org/10.1038/hdy.1981.8
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DOI: https://doi.org/10.1038/hdy.1981.8
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