Linkage mapping of genes controlling resistance to white rust (Albugo candida) in Brassica rapa (syn. campestris) and comparative mapping to Brassica napus and Arabidopsis thaliana

Genome Génome / Conseil National De Recherches Canada
C KoleT C Osborn

Abstract

Genes for resistance to white rust (Albugo candida) in oilseed Brassica rapa were mapped using a recombinant inbred (RI) population and a genetic linkage map consisting of 144 restriction fragment length polymorphism (RFLP) markers and 3 phenotypic markers. Young seedlings were evaluated by inoculating cotyledons with A. candida race 2 (AC2) and race 7 (AC7) and scoring the interaction phenotype (IP) on a 0-9 scale. The IP of each line was nearly identical for the two races and the population showed bimodal distributions, suggesting that a single major gene (or tightly linked genes) controlled resistance to the two races. The IP scores were converted to categorical resistant and susceptible scores, and these data were used to map a single Mendelian gene controlling resistance to both races on linkage group 4 where resistance to race 2 had been mapped previously. A quantitative trait loci (QTL) mapping approach using the IP scores detected the same major resistance locus for both races, plus a second minor QTL effect for AC2 on linkage group 2. These results indicate that either a dominant allele at a single locus (Acal) or two tightly linked loci control seedling resistance to both races of white rust in the biennial turnip rap...Continue Reading

References

Dec 1, 1995·Genome Génome / Conseil National De Recherches Canada·A G SharpeD J Lydiate
Dec 1, 1995·Genome Génome / Conseil National De Recherches Canada·I A ParkinD J Lydiate
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Citations

Dec 13, 2006·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·P SoengasD A C Pink
Jun 17, 2008·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Jean-Baptiste PierreBernadette Julier
Nov 25, 2005·Plant Molecular Biology·Karine AlixJ S Pat Heslop-Harrison
Mar 12, 2003·Trends in Pharmacological Sciences·David GurwitzMoshe Rehavi
Dec 17, 2009·Journal of the American Chemical Society·Marta TothSergei Vakulenko
Oct 24, 2008·Phytopathology·Tika B AdhikariS Roger Rimmer
Mar 8, 2008·Journal of Bioinformatics and Computational Biology·V ChoiK Duca
Jan 19, 2018·Biotechnology Letters·Muhammad AfzalShah Fahad
Apr 7, 2004·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·P Tanhuanpää
Aug 28, 2003·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Sandra GiancolaFrançoise Budar
Mar 5, 2004·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·A VarshneyR P Sharma
Jan 17, 2004·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·A Muangprom, T C Osborn
May 3, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Heena AroraDeepak Pental

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