小麦抗赤霉病外源种质的创制和育种利用

小麦赤霉病是危害小麦安全生产的重要病害之一，种植抗病品种是防治赤霉病最经济有效的手段。目前在生产上应用的抗源很少，越来越多的研究者将目光转移到小麦的近缘属种，寻找新的抗源以及寻求新的育种突破。携带抗性基因的外源染色体可以通过染色体工程手段以附加系、代换系和易位系等形式导入小麦。综述了将大赖草等多个小麦近缘种的抗赤霉病基因导入普通小麦、创制抗病外源种质和育种利用的最新研究进展，以期为小麦抗赤霉病育种提供参考信息。

Creation and Utilization of Resistant Wheat Alien Germplasms to Fusarium Head Blight

Fusarium head blight （FHB or scab） is a destructive disease which threatens the wheat production and food security in the world. Growing disease?resistant varieties is acknowledged as the most cost?effective means for the disease control. Owing to lack of resistant cultivars， researchers have diverted their attention to wheat wild relatives for seeking resistance sources in wheat breeding purpose. Alien chromosome harboring resistance genes can be introduced into wheat through chromosome engineering by creation of addition， substitution and translocation lines. This review summarized the latest research progress on the incorporation of alien chromatin from wheat related species， such as Leymusracemosus into common wheat， the selection of wheat alien germplasms and their application in wheat FHB resistance breeding， which was expected to provide reference for wheat FHB resistance breeding.