Resistance of Arabidopsis thaliana to the obligate biotrophic parasite Plasmodiophora brassicae

A. Arbeiter, M. Fähling, H. Graf, M.D. Sacristán and J. Siemens
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A. Arbeiter: Institute of Biology, Applied Genetics, 14195 Berlin, Germany
M. Fähling: Institute of Biology, Applied Genetics, 14195 Berlin, Germany
H. Graf: Institute of Biology, Applied Genetics, 14195 Berlin, Germany
M.D. Sacristán: Institute of Biology, Applied Genetics, 14195 Berlin, Germany
J. Siemens: Institute of Biology, Applied Genetics, 14195 Berlin, Germany

Plant Protection Science, 2002, vol. 38, issue SI2-6thConfEFPP, 519-522

Abstract: Two resistance phenotypes to P. brassicae have been found in A. thaliana. A first resistance phenotype has been detected to the isolate 'e2' and is polygenically inherited. The second resistance to isolate 'e3' is caused by the dominant resistance gene RPB1. By crossing no influence could be shown for salicylic acid, jasmonic acid and ethylene in the latter resistance reaction. The RPB1 locus was narrowed down to 71 kb on chromosome 1, where three pseudogenes and 13 coding sequences are located. Six of them showed cosegregation with RPB1. None of these sequences have similarities to identified resistance genes or other known genes. Ten coding sequences were expressed, but CDS9 was exclusively expressed in the resistant ecotype Tsu-0.

Keywords: Plasmodiophora brassicae; Arabidopsis thaliana; resistance (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:38:y:2002:i:si2-6thconfefpp:id:10543-pps

DOI: 10.17221/10543-PPS

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