Summary
Six segregating breeding populations were studied for inheritance of resistance to race 2 of the clubroot pathogen Plasmodiophora brassicae Wor. The single gene responsible for resistance to race 2 transferred from B. napus is completely dominant over susceptibility. The diploid B. oleracea chromosome number of 2n=18 was restored in the B3 and B4 progenies derived from backcrossing a 26-chromosome B1 plant with 2x B. oleracea.
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Chiang, M.S., Crête, R. Transfer of resistance to race 2 of Plasmodiophora brassicae from Brassica napus to cabbage (B. Oleracea ssp. capitata). V. The inheritance of resistance. Euphytica 32, 479–483 (1983). https://doi.org/10.1007/BF00021458
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DOI: https://doi.org/10.1007/BF00021458