Euphytica

, Volume 24, Issue 1, pp 165–172

Dominance relationships between S-alleles in the stigmas of Brussels sprouts (Brassica oleracea var. Gemmifera)

  • D. J. Ockendon
Article

DOI: 10.1007/BF00147181

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.

Copyright information

© H. Veenman En Zonen B.V. Wageningen 1975

Authors and Affiliations

  • D. J. Ockendon
    • 1
  1. 1.National Vegetable Research StationWellesbourneEngland