Molecular mapping of QTL for type I Fusarium head blight resistance in two recombinant inbred lines wheat populations

文献类型： 外文期刊

第一作者： Hu, Wenjing

作者： Hu, Wenjing;Jiang, Wei;Shou, Lulu;Hu, Wenjing;Hu, Wenjing;Xiao, Yonggui;Jia, Jizeng;Jiang, Wei;Shou, Lulu;Jiang, Wei;Shou, Lulu;Hu, Wenjing;Hu, Wenjing;Hu, Wenjing;Xiao, Yonggui

作者机构：

期刊名称：CROP SCIENCE （ 影响因子：2.3； 五年影响因子：2.5 ）

ISSN： 0011-183X

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Fusarium head blight (FHB) is a major concern for wheat production and food safety, globally. Resistance to infection (type I resistance) is important for breeding varieties with good FHB resistance. To better understand the genetic architecture underlying type I FHB resistance, quantitative trait loci (QTL) mapping was conducted using two recombinant inbred line populations derived from the crosses Yangmai 4 (YM4)/Yanzhan 1 (YZ1) and Yangmai 5 (YM5)/YZ1. A total of five resistance QTL, including QFhb.yaas-2D, QFhb.yaas-4D, QFhb.yaas-5B, QFhb.yaas-6B, and QFhb.yaas-3A, were detected from these two populations. Except for QFhb.yaas-2D and QFhb.yaas-5B, the resistance effects of all the other QTLs are derived from YM4 or YM5. QFhb.yaas-4D is a common QTL detected both in YM4/YZ1 and YM5/YZ1 populations. QFhb.yaas-2D, QFhb.yaas-4D, and QFhb.yaas-5B were colocalized with known plant height (PH) genes Rht8, Rht-D1, and flowering date (FD) gene Vrn-B1. However, QFhb.yaas-6B and QFhb.yaas-3A were not associated with PH and FD. Kompetitive Allele-Specific PCR markers for QFhb.yaas-6B and QFhb.yaas-3A had been developed and validated in an additional panel of 211 wheat cultivars/lines. The result showed that these two resistance alleles decreased 46.65% of the percentage of diseased spikelets. These results provide valuable information for the fine mapping of QFhb.yaas-6B and QFhb.yaas-3A in the future.

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