ISHS Acta Horticulturae 407: ISHS Brassica Symposium - IX Crucifer Genetics Workshop
TRANSFER OF CLUBROOT RESISTANCE FROM RESYNTHESISED BRASSICA NAPUS INTO OILSEED RAPE - IDENTIFICATION OF RACE-SPECIFIC INTERACTIONS WITH PLASMODIOPHORA BRASSICAE |
| Authors: | E. Diederichsen, B. Wagenblatt, V. Schallehn, U. Deppe, M. Sacristán |
| Keywords: | Brassica napus, Plasmodiophora brassicae, differential interaction |
| Abstract:
Clubroot resistance from B. campestris and B. oleracea was combined in resynthesised rape seed lines. Progenies from interspecific crosses between ECD-04 and ECD-15 or 'Böhmerwaldkohl' showed a broad, and so far stable resistance against several Plasmodiophora brassicae isolates. A breeding programme was started including the development of clubroot resistant DH-lines and of a backcross generation, which is segregating for the three dominant resistance genes that originally came from B. campestris. Cuttings of the BC-plants showed a clear differential interaction with different P. brassicae isolates, which enabled us to identify resistance genes and virulence factors. | |
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