Dominance relationships between S-alleles in the stigmas of Brussels sprouts ( Brassica oleracea var. Gemmifera) Article DOI:
Cite this article as: Ockendon, D.J. Euphytica (1975) 24: 165. doi:10.1007/BF00147181 Summary
Partial dominance between S-alleles in the stigma was found to be common in 412 plants of Brussels sprouts in which two S-alleles could be detected. Amongst a further 168 plants in which only one S-allele could be detected, 5 plants showed the detected allele to be completely dominant to the other allele present, but further examples are expected. Dominance relationships are given for 34 pairs of S-alleles representing 16 different S-alleles. The most recessive S-alleles in the stigma appear to be S5, S14, S15 and S45, while the most dominant are S23, S29, S35, S36 and S39. The significance of dominance between S-alleles in connection with the breeding system of Brussels sprouts is discussed, and an explanation proposed for the high frequency of S2 based on its unusual dominance behaviour.
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© H. Veenman En Zonen B.V. Wageningen 1975