Fhb1基因在黄淮麦区小麦中的效应研究

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关键词小麦；赤霉病；分子标记辅助育种；黄淮麦区中图分类号S512.1文献标识码A文章编号 0517-6611（2025）14-0106-04doi：10.3969/j.issn.0517-6611.2025.14.021

开放科学（资源服务）标识码（OSID）：

Effects of theFhb1 Geneon Wheatin theHuang-Huai WheatRegion

ZHU Xue-cheng， LIU Jing， WANG Jing et al 1 （Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai Area，Xuzhou， Jiangsu ）

AbstractThemoderatelyesistantvarietyXumaiDH9（caryingFhl）wasrosedwiththeehighsusceptibilityvarieties（Xuai192， Aikang 58Pm21 ，andXumai 35）exhibiting superior agronomic traits.Progenies were subjected tofield selectionusing thepedigree breeding method.CdominantdiagnostcarkerswereemploedtosreenFblin54advancedlines，folowedbyevaluatiosofFBesistancepen types（spray inoculation and soil-surface inoculation） and major agronomic traits.Lines carrying Fhb1 showed significantly lower disease severitythan non-carriers，with reductions in both single-floret injection infection rate（ SFI：P=0.002 ）and soil-surface inoculation disease index （I ）I：P=0.001 ）. No significant differences （P>0.05） were observed between genotypes in plant height，growth period，1 OOO-grain weight， spikesoryield.Sixb-positivelines（e.g，Xu261）demonstratedsuperirldandplantheightcomparedtotecontrolvarietyJii 22，while maintaining moderate FHB resistance.

Key wordsWheat;Fusarium head blight;Molecular marker-assisted breeding;Huang-Huai wheat region

小麦赤霉病（fusariumheadblight，FHB）的病原复合体主要由禾谷镰孢菌（Fusariumgraminearum）亚洲镰孢菌（F.asi-aticum）等7个镰孢菌种构成。（剩余8780字）