Characterization of PmDGM Conferring Powdery Mildew Resistance in Chinese Wheat Landrace Duanganmang
文献类型： 外文期刊
作者： Wu, Yanan 1 ; Yu, Xiaoting 1 ; Zhang, Xu 2 ; Yan, Lijuan 1 ; Gao, Li 1 ; Hao, Yiqing 1 ; Wang, Xingyu 1 ; Xue, Shulin 1 ; Qu, Yunfeng 1 ; Hu, Tiezhu 3 ; Fu, Bisheng 4 ; Zhou, Yun 1 ; Li, Suoping 1 ; Li, Hongjie 5 ; Li, Chunxin 6 ; Ma, Pengtao 2 ; Xu, Hongxing 1 ;
作者机构： 1.Henan Univ, Sch Life Sci, State Key Lab Crop Stress Adaptat & Improvement, State Key Lab Cotton Biol, Kaifeng 475004, Henan, Peoples R China
2.Yantai Univ, Coll Life Sci, Yantai 264005, Shandong, Peoples R China
3.Henan Inst Sci & Technol, Coll Life Sci & Technol, Xinxiang 453003, Henan, Peoples R China
4.Jiangsu Acad Agr Sci, Nanjing 210014, Jiangsu, Peoples R China
5.Chinese Acad Agr Sci, Inst Crop Sci, Natl Engn Lab Crop Mol Breeding, Beijing 100081, Peoples R China
6.Henan Acad Agr Sci, Wheat Res Inst, Mol Breeding Lab, Zhengzhou 450002, Henan, Peoples R China
关键词： cereals and grains; cultivar/resistance; disease management; field crops; fungi; Pm5; PmDGM; powdery mildew; wheat landrace
期刊名称：PLANT DISEASE （ 影响因子：4.614； 五年影响因子：5.33 ）
ISSN： 0191-2917
年卷期： 2021 年 105 卷 10 期
页码：
收录情况： SCI
摘要： Wheat powdery mildew, caused by Blumeria graminis f. sp. tritici, is a devastating disease that threatens yield and quality. Host resistance is considered the most effective and preferred means to control this disease. Wheat landrace Duanganmang (DGM) showed high resistance or near immunity to Blumeria graminis f. sp. tritici mixture from Henan Province, China. DGM was crossed with highly susceptible Chinese wheat landrace Huixianhong (HXH) and cultivar `Shimai 15' (SM15) to produce genetic populations. The resistance of DGM to Blumeria graminis f. sp. tritici isolate E09 was shown to be controlled by a single dominant Mendelian factor, tentatively designated PmDGM. Marker analysis and 55K single nucleotide polymorphism (SNP) array scanning showed that this gene was positioned in the Pm5 interval (2.4 cM or 1.61 Mb) flanked by Xhenu099 and Xmp1158 in the Chinese Spring reference genome. Homology-based cloning and sequence analysis demonstrated that DGM has the identical NLR gene (Pm5e) and RXL gene reported in Fuzhuang 30 (FZ30), conferring and modifying powdery mildew resistance, respectively. However, based on the different reaction patterns to the Blumeria graminis f. sp. tritici isolate B15 between DGM and FZ30, the authors speculate that DGM may have two tightly linked genes that could not be separated in the current mapping population, one of which is PmDGM and the other being Pm5e. Hence, this study provides a valuable resistance resource for improvement of powdery mildew resistance.
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