Molecular mapping of partial resistance to powdery mildew in winter wheat cultivar Folke

被引：20
作者：
Lillemo, Morten [1 ]
Bjornstad, Asmund [1 ]
Skinnes, Helge [1 ]
机构：
[1] Norwegian Univ Life Sci, Dept Plant & Environm Sci, N-1432 As, Norway
来源：
EUPHYTICA | 2012年 / 185卷 / 01期
关键词：
Wheat; Triticum aestivum L; Powdery mildew; Blumeria graminis f. sp tritici; Partial resistance; Molecular markers; ADULT-PLANT RESISTANCE; QUANTITATIVE TRAIT LOCI; TRITICUM-AESTIVUM; RUST RESISTANCE; MAJOR QTL; GENE; MARKERS; IDENTIFICATION; REGION; TIME;
D O I：
10.1007/s10681-011-0620-x
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The Swedish winter wheat (Triticum aestivum L.) cultivar Folke has a long record of partial and race non-specific resistance to powdery mildew (caused by Blumeria graminis f. sp. tritici) in the field. The aim of the present study was to map the main genetic factors behind the partial resistance in Folke and identify molecular markers for use in marker-assisted selection. A population of 130 recombinant inbred lines was developed from a cross between Folke and the moderately susceptible spring wheat line T2038. The population was tested for powdery mildew resistance over two years at two locations in Norway and genotyped with DArT and SSR markers. Composite interval mapping detected a total of eight quantitative trait loci (QTL) for powdery mildew resistance; six with resistance from Folke on 2BS, 2DL, 5AL, 5BS and 6BS and two with resistance from T2038 on 5BS and 7AL. None of the loci with resistance from Folke mapped to chromosomal regions with known race-specific resistance genes, which confirmed the race non-specific nature of the resistance in this cultivar. The molecular markers linked to the reported QTL will be useful as a tool for selecting partial and potentially durable resistance to powdery mildew based on the resistance in Folke.
引用
收藏
页码：47 / 59
页数：13
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