Breeding Science
Online ISSN : 1347-3735
Print ISSN : 1344-7610
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Identification and evaluation of clubroot resistance of radish chromosome using a Brassica napusRaphanus sativus monosomic addition line
Michiko AkabaYukio KanekoKatsunori HatakeyamaMasahiko IshidaSang Woo BangYasuo Matsuzawa
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2009 Volume 59 Issue 2 Pages 203-206

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Abstract

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 napusRaphanus 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 on 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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© 2009 by JAPANESE SOCIETY OF BREEDING
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