| 刊名 | Asian Agricultural Research |
| 作者 | Jikun GUO, Yanbiao YAN, Yang XI, Xiang LI, Jiangang GUO, Junchen CHAI, Zhibin YAN |
| 作者单位 | Gansu Dunhuang Seed Industry Group Co., Ltd., |
| DOI | 10.19601/j.cnki.issn1943-9903.2025.09.006 |
| 年份 | 2025 |
| 刊期 | 9 |
| 页码 | 37-43 |
| 关键词 | Maize, Southern rust, Resistance gene cluster, Molecular breeding, Gene resources, Heterotic groups, Regional prevention and control |
| 摘要 | The intensification of global warming has led to the continuous outbreak of southern rust (Puccinia polysora Underw.) in major maize-producing regions worldwide. The severe outbreak in the Huang-Huai-Hai summer maize region of China in 2021 caused yield losses exceeding 50% in some plots, and this disease has been included in the List of Key Crop Pests and Diseases. This paper systematically reviews the molecular resistance mechanisms of maize to southern rust, focusing on the immune mechanisms mediated by NLR family genes and the characteristics of the Bin 10.01 resistance gene cluster; it summarizes the advances in research of molecular breeding technologies such as gene marker development, map-based cloning, and gene editing; combined with the disease characteristics of the spring-sown maize region in Southwest China and the summer-sown maize region in Huang-Huai-Hai, it elaborates on regionally adapted prevention and control strategies; integrating breeding practices of Dunhuang Seed Industry Group (e.g., Dunyu 810 and Dunyan 616), it proposes a full-chain solution of "precision gene pyramiding - heterotic group utilization - regional promotion". It is expected to provide theoretical and technical references for molecular breeding of maize resistance to southern rust. |
