文献类型： 外文期刊

作者： Hao, Ming ¹ ; Li, Yazhou ² ; Fan, Chaolan ² ; Chen, Hong ² ; Nie, Yongxin ² ; Wang, Fang ² ; Luo, Jiangtao ³ ; Jiang, Bo ² ; Chen, Xue ² ; Chen, Xuejiao ² ; Yuan, Zhongwei ² ; Ning, Shunzong ² ; Zhang, Lianquan ¹ ; Pu, Zongjun ³ ; Cao, Dong ⁵ ; Chen, Shisheng ⁶ ; Huang, Lin ¹ ; Liu, Baolong ⁵ ; Liu, Dengcai ¹ ;

作者机构： 1.Sichuan Agr Univ, State Key Lab Crop Gene Explorat & Utilizat Southw, Chengdu 611130, Sichuan, Peoples R China

2.Sichuan Agr Univ, Triticeae Res Inst, Chengdu 611130, Sichuan, Peoples R China

3.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Sichuan, Peoples R China

4.Environm friendly Crop Germplasm Innovat & Genet I, Chengdu 610066, Sichuan, Peoples R China

5.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Qinghai, Peoples R China

6.Peking Univ Inst Adv Agr Sci, Natl Key Lab Wheat Improvement, Shangdong Lab Adv Agr Sci Weifang, Weifang 261325, Shandong, Peoples R China

关键词： Stripe rust resistance; YrAev; Aegilops variabilis; phKL

期刊名称：CROP JOURNAL （ 影响因子：5.6； 五年影响因子：6.0 ）

ISSN： 2095-5421

年卷期： 2025 年 13 卷 4 期

页码：

收录情况： SCI

摘要： Aegilops variabilis (SvSvUvUv) is a source of resistance to wheat stripe rust. The phKL locus in Chinese common wheat landrace Kaixian-Luohanmai (KL) can induce homoeologous wheat-alien chromosome pairing and recombination. In this study, we confirmed that the whole 2Sv chromosome introgressed into wheat from Ae. variabilis accession AS116 conferred all-stage stripe rust resistance. The underlying gene(s), named YrAev, was mapped to the long arm 2SvL using an F2 population. Two 2Sv-2B recombinants, derived from a cross of the 2Sv (2B) chromosome substitution line and KL, were confirmed to harbor the resistance locus. The physical region containing YrAev, determined from RNA-seq data, was 844.6-852.1 Mb on the chromosome arm 2Sl of the Ae. longissima (Sv genome donor species of Ae. variabilis) accession TL05 assembly v1.0. Differential gene expression analysis of post-inoculation with the Pst race has indicated two disease-resistance-related genes (annotated as mixed lineage kinase domain-like protein and nucleotide-binding leucine-rich repeat like protein, respectively) as promising candidates for YrAev. This study demonstrates the utility of the phKL gene system in alien gene localization and transfer. The resistant translocation line harboring YrAev can be exploited by wheat breeders as a novel source of resistance to stripe rust. (c) 2025 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).