Location of Pm3g, a powdery mildew resistance allele in wheat, by using a monosomic analysis and by identifying associated molecular markers

被引:0
作者
Pierre Sourdille
Patrick Robe
Marie-Hélène Tixier
Gérard Doussinault
Marie-Thérèse Pavoine
Michel Bernard
机构
[1] INRA Station d'Amélioration des Plantes,
[2] Domaine de Crouelle 234,undefined
[3] Avenue du Brézet,undefined
来源
Euphytica | 1999年 / 110卷
关键词
Blumeria graminis; powdery mildew; QTL; RFLPs; Triticum aestivum; wheat;
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摘要
A segregating population of doubled-haploid lines issued from the cross between the wheat (Triticum aestivum L. em. Thell) cultivars Courtot, resistant to several isolates of powdery mildew (Blumeria graminis DC. f. sp. tritici Em. Marchal), and Chinese Spring (susceptible) was used to map Mlar, a gene carried by Courtot and conferring resistance to this pathogen. The assignation of Mlar using monosomic lines of Courtot was confirmed by the mapping analysis. Mlar was located on the short arm of the chromosome 1A, in the vicinity of the locus XGli-A5 coding for storage proteins. This result was in accordance with those demonstrating that Mlar was an allele of the Pm3 locus (Pm3g), a gene also involved in the resistance to powdery mildew.
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页码:193 / 198
页数:5
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