摘要
鉴定了新疆春小麦的抗病性状功能基因分布,旨在为小麦抗病育种遗传改良提供材料。利用KASP技术对549份新疆春小麦材料的抗条锈病、抗叶锈病、抗白粉病及抗赤霉病性相关基因进行检测,结果显示,121份材料携带5个占比较高的抗条锈病等位基因(QYrqin.nwafu-2AL、Yr29、QYrsn.nwafu-1BL、QYrqin.nwafu-6BS和Yr78),352份材料携带2个占比较高的抗叶锈病等位基因(Lr67和Lr46),142份材料携带3个占比较高的抗赤霉病等位基因(QFhb.hbaas-5AS、QFhb.hbaas-5AL和QFhb.caas-5AL),所有材料均未检测到5个抗白粉病基因(Pm12、Pm21、Pm2a、Pm5e和PmV)。综上,新疆春小麦品种条锈病、叶锈病和赤霉病抗性基因频率较高,而白粉病抗源缺乏,育种中应注重引进并利用新的抗白粉病材料,以提高新疆春小麦抗病育种能力。
To identify the distribution of disease resistance functional genes in Xinjiang spring wheat materials and provide materials for genetic improvement of wheat disease resistance breeding,KASP technology was employed to detect genes associated with resistance to stripe rust,leaf rust,powdery mildew,and Fusarium head blight in 549 Xinjiang spring wheat materials.The results showed that 121 materials carried five stripe rust resistance alleles with relatively high frequencies(QYrqin.nwafu-2AL,Yr29,QYrsn.nwafu-1BL,QYrqin.nwafu-6BS,Yr78);352 materials carried two leaf rust resistance alleles with relatively high frequencies(Lr67,Lr46);and 142 materials carried three Fusarium head blight resistance alleles with relatively high frequencies(QFhb.Hbaas-5AS,QFhb.hbaas-5AL,QFhb.caas-5AL).No presence of the five powdery mildew resistance genes(Pm12,Pm21,Pm2a,Pm5e,PmV)was detected in any of the materials.In summary,Xinjiang spring wheat varieties exhibited high frequencies of resistance genes for stripe rust,leaf rust,and Fusarium head blight,but a notable lack of resistance sources for powdery mildew.Therefore,it is crucial to focus on introducing and utilizing new powdery mildew resistant materials to improve the disease resistance breeding capacity of Xinjiang spring wheat.
作者
贾永红
魏海鹏
曾潮武
刘俊
陈艳妮
李建疆
梁晓东
Jia Yonghong;Wei Haipeng;Zeng Chaowu;Liu Jun;Chen Yanni;Li Jianjiang;Liang Xiaodong(Institute of Grain Crops,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,Xinjiang,China)
出处
《作物杂志》
北大核心
2026年第1期15-19,I0001-I0003,共8页
Crops
基金
庭州科技创新团队项目(引领型)“小麦种质资源表型、功能基因标记鉴定与应用创新团队”(2023CT01)
新疆维吾尔自治区重点研发计划项目课题“优质抗逆稳产小麦新品种选育与推广”(2023B02006)。
关键词
小麦
抗病性
KASP
标记检测
Wheat
Disease resistance
KASP
Marker detection
