K. F. Thompson
Articles written in Journal of Genetics
Volume 55 Issue 1 February 1957 pp 45-60
Self-incompatibility was studied in marrow-stem kale (
The incompatibility system is one with a sporophytic and not gametophytic control of pollen and style reactions.
There is a multiple series of S alleles. Dominance of one allele over another may be found in the pollen or in the style, or the two alleles may be active in both pollen and style. The relationship between two alleles is not necessarily the same in pollen and style.
Self-compatibility and pseudo-compatibility are discussed briefly.
Volume 56 Issue 3 December 1959 pp 325-340
1. Methods for recognising S allele homozygotes in inbred families from parents heterozygous for alleles which may have four possible dominance relations are discussed.
2. Examples are given of the recognition in inbred families of homozygotes for two S alleles present in the parents when one allele is dominant in both pollen and style, when one allele is dominant in the pollen only, when one allele is dominant in the style only, and finally when both alleles are active in both pollen and style.
3. Self-compatible plants in the inbred offspring of self-incompatible plants may be either homozygous for a self-fertility allele in the S series or for a recessive allele independent of the S allele series. Female sterility may also be due to genes linked with the S alleles or independent of them.
4. Pseudo-compatibility occurred in many families, but it was possible to ignore it in the analysis of the pollination results for the recognition of S allele homozygotes.
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