4个春小麦种质资源苗期抗条锈基因遗传分析  

Genetic Analysis of Stripe Rust Resistance Gene in Four Spring Wheat Germplasm Resources at Seedling Stage

作　　者：侯璐[1] 闫佳会[1] 姚强[1,2] 李秋荣[1] 郭青云[1] 任迎辉 付丽颖 

机构地区：[1]青海大学农林科学院,青海大学省部共建三江源生态与高原农牧业国家重点实验室,农业部西宁作物有害生物科学观测实验站,青海省农业有害生物综合治理重点实验室,西宁810016 [2]旱区作物逆境生物学国家重点实验室,西北农林科技大学植物保护学院,陕西杨凌712100 [3]河南中鹤农业发展有限公司,河南浚县456250

出　　处：《西北农业学报》2018年第1期24-30,共7页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家自然科学基金(31660513); 青海省自然科学基金(2017-ZJ-793,2014-ZJ-925Q,2016-HZ-810)

摘　　要：为研究4个春小麦种质资源的抗条锈病特点和抗性遗传规律,采用7个条锈菌生理小种(菌系)对4个春小麦资源进行苗期抗条锈性评价和抗条锈性遗传分析。抗性评价结果表明,4个春麦资源都具有抗条锈性,且表现有抗性小种专化性,各个春麦资源的抗病谱也不同。遗传分析结果表明,春麦资源‘MY005846’对CYR33的抗性由一显一隐2对基因独立作用,对CYR32的抗性由1对隐性基因作用,对CYR27的抗性由2对显性基因独立作用,对CYR25和CYR23的抗性都是由单显性基因作用,对Sun11-6的抗性由2对显性基因共同作用;春麦资源‘ZM018858’对CYR32的抗性由2对显性基因共同作用,对CYR27和CYR25的抗性都是由2对显性基因独立作用,对CYR23和Sun11-4的抗性都是由1显1隐2对基因共同作用;春麦资源‘YJ003412’对CYR33的抗性由1显1隐2对基因共同作用,对CYR32和CYR25的抗性都是由1对隐性基因作用,对CYR23的抗性由1显1隐2对基因独立作用;资源‘YJ003417’对CYR23和CYR25的抗性都由1对显性基因作用。To research the resistance hereditary rule of four spring wheat germplasm resources,seven dominant races（or single spore strains）of Puccinia striiforms f.sp.tritici prevalent in China were used to evaluate stripe rust resistance at seedling stage.The genetic analysis of stripe rust resistance gene was also conducted.The result shows that,all four germplasm resources are characterized racespecific resistance to stripe rust,and the resistance spectrum of every germplasm resource is different.The result of genetic analysis indicate that the spring wheat germplasm resource ＇MY005846＇ contains one dominant and one recessive gene conferring independent resistance to CYR33,one recessive gene conferring resistance to CYR32,two dominant genes conferring independent resistance to CYR27,one dominant gene conferring resistance to CYR25 and CYR23,and two dominant genes conferring complementary resistance to Sun11-6;the resistance of wheat germplasm resource ＇ZM018858＇ is controlled by two complementary dominant genes for CYR32,two independent lydominant genes for both of CYR27 and CYR25,complementary one dominant and one recessive gene for both of CYR23 and Sun11-4;wheat germplasm resource ＇YJ003412＇ contains one dominant gene and one recessive gene conferring complementary resistance to CYR33,one recessive gene conferring resistance to CYR32 and CYR25,one dominant gene and one recessive gene conferring independent resistance to CYR23;the resistance of wheat germplasm resource＇YJ003417＇to CYR23 and CYR25 is both controlled by one dominant gene.

关 键 词：春小麦 种质资源 条锈病 遗传分析 

分 类 号：S435.121[农业科学—农业昆虫与害虫防治]