文献类型： 外文期刊
作者： Su, Zhenqi 1 ; Bernardo, Amy 3 ; Tian, Bin 3 ; Chen, Hui 1 ; Wang, Shan 1 ; Ma, Hongxiang 1 ; Cai, Shibin 1 ; Liu, Dongta 1 ;
作者机构： 1.Kansas State Univ, Dept Agron, Manhattan, KS 66506 USA
2.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Shijiazhuang, Hebei, Peoples R China
3.Kansas State Univ, Dept Plant Pathol, Throckmorton Hall, Manhattan, KS 66506 USA
4.Jiangsu Acad Agr Sci, Inst Food Crops, Nanjing, Jiangsu, Peoples R China
5.Yangzhou Univ, Coll Agr, Yangzhou, Jiangsu, Peoples R China
6.USDA ARS, Hard Winter Wheat Genet Res Unit, Manhattan, KS 66506 USA
7.Iowa State Univ, Dept Agron, Ames, IA USA
8.Chinese Acad Agr Sci, Crop Inst, Beijing, Peoples R China
期刊名称：NATURE GENETICS （ 影响因子：38.33； 五年影响因子：36.431 ）
ISSN： 1061-4036
年卷期： 2019 年 51 卷 7 期
页码：
收录情况： SCI
摘要： Fusarium head blight (FHB), which is mainly caused by Fusarium graminearum, is a destructive wheat disease that threatens global wheat production. Fhb1, a quantitative trait locus discovered in Chinese germplasm, provides the most stable and the largest effect on FHB resistance in wheat. Here we show that TaHRC, a gene that encodes a putative histidine-rich calcium-binding protein, is the key determinant of Fhb1-mediated resistance to FHB. We demonstrate that TaHRC encodes a nuclear protein conferring FHB susceptibility and that a deletion spanning the start codon of this gene results in FHB resistance. Identical sequences of the TaHRC-R allele in diverse accessions indicate that Fhb1 had a single origin, and phylogenetic and haplotype analyses suggest that the TaHRC-R allele most likely originated from a line carrying the Dahongpao haplotype. This discovery opens a new avenue to improve FHB resistance in wheat, and possibly in other cereal crops, by manipulating TaHRC sequence through bioengineering approaches.
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