Journal
BREEDING SCIENCE
Volume 59, Issue 2, Pages 203-U7Publisher
JAPANESE SOC BREEDING
DOI: 10.1270/jsbbs.59.203
Keywords
Raphanus sativus; Brassica napus; Monosomic addition Lines (MALs); clubroot resistance
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Clubroot resistance (CR) against the Ano-01 isolate of the clubroot pathogen Plasmodiophora brassicae for individual radish chromosomes was evaluated using 9 types (a-i) of Brassica napus-Raphanus sativus monosomic addition lines (MALs) produced from the progenies of the hybridization of B. napus (2n=38, AACC) and Raphanobrassica 'Rb-63' (2n=36, RRCC). Among the 9 types of MAL., the c-type showed high resistance, although other types and reverted plants with somatic chromosomes like B. napus (2n = 38) were susceptible. This result suggested that a major CR gene against the Ano-01 isolate may be located oil the radish c-chromosome. However, it was also assumed that there might be other CR gene(s) in radish because many c-type MAL plants showed slight disease symptoms.
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