Summary
Diallele crosses of sibs and parents of 3 parental combinations demonstrated sporophytic type of incompatibility inCorylus avellana L. One gene with multiple alleles was indicated. All 6 alleles present in the 4 parental cultivars and in their progeny exhibited dominance in pollen and independent action in the pistil. Individuals homozygous for S-alleles appeared in progeny of parents having one allele in common. Reciprocal differences occurred in some crosses. The stigmatic surface is the site of the incompatibility reaction. Incompatible pollen germinated abundantly but failed to penetrate into the stigma cells.
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Communicated by H.F. Linskens
Oregon Agricultural Experiment Station Technical Paper No. 4986, Corvallis, Oregon 97331
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Thompson, M.M. Genetics of incompatibility inCorylus avellana L.. Theoret. Appl. Genetics 54, 113–116 (1979). https://doi.org/10.1007/BF01159464
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DOI: https://doi.org/10.1007/BF01159464