数字农科院2.0

RPSR1, a major quantitative trait locus for Pythium stalk rot resistance in maize

文献类型： 外文期刊

作者： He, Shengfeng;Chen, Junbin;Liu, Chuang;Liu, Dandan;Wang, Lei;Duan, Canxing;Zhu, Wangsheng

作者机构：

关键词： Maize;Pythium stalk rot;Quantitative trait loci (QTL);LRR-RLK;ZmPEPR2

期刊名称： CROP JOURNAL

ISSN： 2095-5421

年卷期： 2025 年 13 卷 1 期

页码：

收录情况： SCIE（2025版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版） ; ; 农林核心（2024版）

摘要： Pythium stalk rot (PSR) is a destructive disease of maize, severely affecting yield and grain quality. The identification of quantitative trait loci (QTL) or genes for resistance to PSR forms the basis of disease- resistant hybrids breeding. In this study, a major QTL, Resistance to Pythium stalk rot 1 (RPSR1), was identified from a set of recombinant inbred lines derived from MS71 and POP. Using a recombinant progeny testing strategy, RPSR1 was fine-mapped in a 472 kb interval. Through candidate gene expression, gene knock-down and knock-out studies, a leucine-rich repeat receptor-like kinase gene, PEP RECEPTOR 2 (ZmPEPR2), was assigned as a PSR resistance gene. These results provide insights into the genetic architecture of resistance to PSR in maize, which should facilitate breeding maize for resistance to stalk rot. (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/).

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