中国农学通报2026，Vol.42Issue(8)：1-10,10.
热源种质驱动温带玉米遗传改良的研究进展
Research Progress on Genetic Improvement of Temperate Maize Utilizing Tropical Maize Germplasm
摘要
Abstract
Maize breeding in temperate regions of China is confronted with problems including a narrow germplasm base,insufficient genetic diversity,and increasingly severe diseases and insect pests.In contrast,tropical maize germplasm has become an important resource for broadening the genetic basis of temperate germplasm,owing to its abundant genetic diversity,strong stress resistance,and significant heterosis when crossed with temperate germplasm.However,the photothermal sensitivity of tropical maize germplasm limits its direct use in temperate regions.This review systematically summarizes the breeding value of tropical maize germplasm,including its genetic diversity,heterosis and multi-stress resistance(e.g.,to disease and insect resistance,drought tolerance,and high-temperature tolerance,etc.).It summarizes the history of introducing and utilizing tropical germplasm such as'Suwan'and'Tuxpeno'in China,and elaborates the improvement and utilization of'P-group'germplasm,a successful case of tropical-temperate germplasm integration.Finally,focusing on the molecular mechanisms of photothermal responses in maize flowering regulation,we highlight the core role of the florigen gene ZCN8 in the photoperiod pathway,and discuss the potential effects of temperature sensitivity on flowering time.Given that the specific interaction mechanisms underlying the coordinated regulation of maize flowering by photoperiod and temperature signals remain unclear,this review prospects that in-depth dissection through multi-omics and genetic interaction technologies is urgently needed,which will provide more precise theoretical support for the genetic improvement of temperate maize driven by tropical germplasm.关键词
玉米/温热种质/光温敏感性/花期性状/遗传多样性/抗性Key words
maize/tropical-temperate germplasm/photothermal sensitivity/flowering time traits/genetic diversity/resistance分类
农业科技引用本文复制引用
刘强力,敖曼,关义新,韩可,陈松,陈鑫,白玉梅,陈志远,崔震海..热源种质驱动温带玉米遗传改良的研究进展[J].中国农学通报,2026,42(8):1-10,10.基金项目
内蒙古自治区科技创新重大示范项目"北方春玉米矮杆早熟耐密高产种质创新与应用"(2025ZDSF0028) （2025ZDSF0028）
内蒙古自治区生物育种技术创新中心科技支撑项目"生物育种玉米新品种选育及秸秆还田生态安全评估"(2024NSZC02). （2024NSZC02）
