Evidence map›Paper›PMID 40853595›Full record

ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2025

Homoeologous recombination-based transfer and cytological mapping of the novel powdery mildew resistance gene Pm7C from Aegilops caudata.

Yueming Ren, Mengzhen Luo, Yajun Feng, Qifan Chen, Chao Ma, Wenxuan Liu, Fu Guo, Qianwen Liu, Muhammad Amjad, Ranran Jia and 13 more

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Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

23 authors.

Yueming RenState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Mengzhen LuoState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Yajun FengState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Qifan ChenState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Chao MaState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Wenxuan LiuState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Fu GuoState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Qianwen LiuState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Muhammad AmjadState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Ranran JiaState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Xinpei HeState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Xiang JiState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Yanlong ZhaoState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Weixiu KongState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Mengqing GuoState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Luna TaoState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Zheng YangState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Kai HanState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
Guihong YinCollege of Agronomy, State Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, Henan Agricultural University, State Wheat Engineering Technology Research Center, Zhengzhou, 450002, Henan, China.
Sunish K SehgalDepartment of Agronomy, Horticulture and Plant Science, South Dakota State University, Brookings, SD, 57007, USA.
Yue ZhaoState Key Laboratory of High-Efficient Production of Wheat-Maize Double Cropping, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, Henan, China. Yuezhao@henau.edu.cn.
Jinpeng ZhangState Key Laboratory of Crop Gene Resources and Breeding, Chinese Academy of Agricultural Sciences, Beijing, 100081, China. zhangjinpeng@caas.cn.
Huanhuan LiState Key Laboratory of Crop Gene Resources and Breeding, Chinese Academy of Agricultural Sciences, Beijing, 100081, China. lihuanhuanhappy@henau.edu.cn.ORCID http://orcid.org/0009-0007-5808-1965

Funding

National Natural Science Foundation of China 32272070National Natural Science Foundation of China 32372089National Natural Science Foundation of China 32401805Opening Foundation of State Key Laboratory of Crop Gene Resources and Breeding CGRB-2024-01Science and Technology Innovation Talents in Universities of Henan Province 25HASTIT009Scientific and Technological Research Project of Henan Province of China 242103810024Scientific and Technological Research Project of Henan Province of China 252102111118Topnotch Talents of Henan Agricultural University 30500939
6 · The paper itself

Abstract

key messageA novel powdery mildew resistance gene Pm7C from Aegilops caudata was introgressed into common wheat through ph1b-induced homoeologous recombination and mapped to the 7CL bin FL 0.90-0.96 on chromosome 7C. Wheat powdery mildew poses a significant threat to wheat grain yield and quality. Developing resistant wheat varieties through the deployment of resistance genes is the most effective, economically feasible, and environmentally sustainable strategy to combat this disease. Aegilops caudata (2n = 2x = 14, CC), a wild relative of common wheat, has been identified as a valuable genetic resource harboring novel resistance loci. Specifically, chromosome 7C of Ae. caudata carries a novel broad-spectrum resistance gene, tentatively designated as Pm7C. However, the structural variations in chromosome 7C, coupled with the unavailability of a reference genome for Ae. caudata, have hindered the introgression of this resistance gene into common wheat and its mapping. In this study, we report the development of wheat-Ae. caudata 7C recombinants via ph1b-induced homoeologous recombination and the cytological mapping of the resistance gene Pm7C. By integrating the analysis of 69 7C-specific markers with breakpoint mapping of 7C recombinants using in situ hybridization, we characterized 35 wheat-Ae. caudata 7C recombinants, categorizing them into 10 distinct types. This enabled the construction of a physical map of 7C, comprising nine chromosomal bins defined by 69 specific markers. Subsequent evaluation of powdery mildew resistance in these recombinants mapped Pm7C to the long arm of 7C within the interval of FL 0.90-0.96. Additionally, terminal recombinant 7CT1 (T7DL.7DS-7CL) and intercalary recombinant 7CT4 (Ti7DL.7DS-7CL-7DS) were identified as containing small 7CL segments that harbor Pm7C. These resources are expected to facilitate wheat disease-resistant breeding and further efforts in cloning and elucidating the resistance mechanism of Pm7C.

Indexed as

AegilopsDisease ResistanceGenes, PlantHomologous RecombinationPlant DiseasesTriticumAscomycotaChromosome MappingChromosomes, PlantGenetic MarkersGenetic Markers

Identifiers

PMID40853595

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.