分子标记辅助选择小麦抗白粉病兼抗赤霉病聚合体  

Pyramiding resistance to powdery mildew and Fusarium head blight(FHB) by molecular marker-assisted selection(MAS)

作　　者：宋伟[1] 张敏[1] 杨继芝[1] 罗培高[1] 龚国淑[1] 涂坦[1] 

机构地区：[1]四川农业大学植物保护系,雅安625014

出　　处：《植物病理学报》2010年第6期655-658,共4页Acta Phytopathologica Sinica

基　　金：公益性行业(农业)科研专项(nyhyzx3-15);四川省育种攻关项目

摘　　要：Sumai 3,a wheat variety resistant to Fusarium head blight(FHB),was crossed with Neimai 9,a commercial wheat cultivar with the resistance to powdery mildew.The SCAR(sequence characterized amplified region) markers of powdery mildew resistance gene Pm21 and four SSR(simple sequence repeats)markers flanking the major FHB resistance QTL(Qfhs.ndsu-3BS) in Sumai 3 were used to detect the resistance loci by marker assisted selection(MAS) in the plants of the F2 population.Identification of resistance to both powdery mildew and FHB in field showed that 12 plants resistant to both diseases were obtained.In addition,the agronomic traits of these plants were better than those of Sumai 3,and are perhaps the excellent parental materials for wheat breeding.Sumai 3,a wheat variety resistant to Fusarium head blight（FHB）,was crossed with Neimai 9,a commercial wheat cultivar with the resistance to powdery mildew.The SCAR（sequence characterized amplified region） markers of powdery mildew resistance gene Pm21 and four SSR（simple sequence repeats）markers flanking the major FHB resistance QTL（Qfhs.ndsu-3BS） in Sumai 3 were used to detect the resistance loci by marker assisted selection（MAS） in the plants of the F2 population.Identification of resistance to both powdery mildew and FHB in field showed that 12 plants resistant to both diseases were obtained.In addition,the agronomic traits of these plants were better than those of Sumai 3,and are perhaps the excellent parental materials for wheat breeding.

关 键 词：分子标记辅助选择 抗赤霉病 小麦生产 抗白粉病 聚合体 小麦白粉病 禾谷镰刀菌 小麦赤霉病 

分 类 号：S511[农业科学—作物学]