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Title of Journal: Euphytica

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Abbravation: Euphytica

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Springer Netherlands

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DOI

10.1002/9780470996751.ch47

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1573-5060

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Quantitative trait loci for resistance to Fusarium

Authors: Tao Li Guihua Bai Shuangye Wu Shiliang Gu
Publish Date: 2012/02/05
Volume: 185, Issue: 1, Pages: 93-102
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Abstract

The Chinese wheat landrace Huangfangzhu HFZ has a high level of resistance to Fusarium head blight FHB To identify chromosomal regions that are responsible for FHB resistance in HFZ F8 recombinant inbred lines RIL were developed from a cross between HFZ and Wheaton a US hard spring wheat FHB was evaluated by single floret inoculation in both greenhouse and field environments Two quantitative trait loci QTL with major effects were identified One QTL was located on the short arm of chromosome 3B and explained 354 of the phenotypic variation the other QTL was assigned to 7AL and explained 180 of the phenotypic variation for FHB response In addition three minor QTL were detected on chromosomes 1AS 1B and 5AS by single marker regression HFZ contributed all favorable alleles The RIL with HFZ alleles at the QTL on 3BS and 7AL displayed significantly lower percentages of infected spikelets than RIL without these alleles in both greenhouse and field environments HFZ combined several alleles from germplasm reported previously and is a promising alternative source for improving wheat FHB resistanceThis project is partly funded by NSFC Grant no 31171537 the Priority Academic Program Development of Jiangsu Higher Education Institution Jiangsu Provincial Natural Science Foundation of China Grant no BK2010312 and National Research Initiative Competitive Grants CAP project 20116800230029 from the USDA National Institute of Food and Agriculture Mention of trade names or commercial products in this article is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the US Department of Agriculture This is contribution no 11207J from the Kansas Agricultural Experiment Station Manhattan Kansas USA

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