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Introgression of Powdery Mildew Resistance Gene Pm56 on Rye Chromosome Arm 6RS Into Wheat

文献类型： 外文期刊

作者： Hao, Ming 1 ; Liu, Meng 1 ; Luo, Jiangtao 2 ; Fan, Chaolan 1 ; Yi, Yingjin 1 ; Zhang, Lianquan 1 ; Yuan, Zhongwei 1 ; Nin 1 ;

作者机构： 1.Sichuan Agr Univ, Triticeae Res Inst, Yaan, Peoples R China

2.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu, Sichuan, Peoples R China

关键词： Blumeria graminis; cereal rye; powdery mildew; Secale cereale; Triticum aestivum

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.753； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2018 年 9 卷

页码：

收录情况： SCI

摘要： Powdery mildew, caused by the fungus Blumeria graminis f. sp. tritici, represents a yield constraint in many parts of the world. Here, the introduction of a resistance gene carried by the cereal rye cv. Qinling chromosome 6R was transferred into wheat in the form of spontaneous balanced translocation induced in plants doubly monosomic for chromosomes 6R and 6A. The translocation, along with other structural variants, was detected using in situ hybridization and genetic markers. The differential disease response of plants harboring various fragments of 6R indicated that a powdery mildew resistance gene(s) was present on both arms of rye chromosome 6R. Based on karyotyping, the short arm gene, designated Pm56, was mapped to the subtelomere region of the arm. The Robertsonian translocation 6AL.6RS can be exploited by wheat breeders as a novel resistance resource.

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