冬小麦新品种陇鉴9828苗期抗条锈性遗传分析  

Genetic Analysis of Stripe Rust Resistance at the Seedling Stage of New Winter Wheat Variety Longjian 9828

作　　者：虎梦霞[1] 王万军[2] 曹世勤[3,4,5] 贾秋珍 张勃[3,4,5] 黄瑾 孙振宇[3,4,5] 李玲 HU Mengxia;WANG Wanjun;CAO Shiqin;JIA Qiuzhen;ZHANG Bo;HUANG Jin;SUN ZhenYu;LI Ling(Wheat Research Institute,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730070,China;Green Agronomic Centre,Tianshui Institute of Agricultural Sciences,Gangu Gansu 741200,China;Institute of Plant Protection,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730070,China;Scientific Observing and Experimental Station of Crop Pests in Tianshui,the Ministry of Agriculture and Rural Affairs,P.R.China,Gangu Gansu 741200,China;National Agricultural Experimental Station for Plant Protection at Gangu,the Ministry of Agriculture and Rural Affairs,P.R.China,Gangu Gansu 741200,China;Lanzhou Agricultural Research&Technology Promotion Centre,Lanzhou Gansu 730030,China)

机构地区：[1]甘肃省农业科学院小麦研究所,甘肃兰州730070 [2]天水市农业科学研究所绿色农业研究中心,甘肃甘谷741200 [3]甘肃省农业科学院植物保护研究所,甘肃兰州730070 [4]农业农村部天水作物有害生物野外科学观测实验站,甘肃甘谷741200 [5]农业农村部国家植物保护甘谷观测实验站,甘肃甘谷741200 [6]兰州市农业科技研究推广中心,甘肃兰州730030

出　　处：《寒旱农业科学》2024年第6期580-584,共5页Journal of Cold-Arid Agricultural Sciences

基　　金：国家重点研发计划(2021YFD1401004-02、2021YFD1401001-08);甘肃省农业科学院生物育种专项(2022GAAS006);金城科普专家。

摘　　要：为明确冬小麦新品种陇鉴9828苗期抗条锈性基因类型及其数量,为该品种抗病基因的合理应用提供支撑。2022年对小麦遗传群体(铭贤169/陇鉴9828)的F1、F2单株及其双亲材料的幼苗分别接种CYR34、CYR32及新菌系ZS的单孢菌系,进行抗条锈性遗传分析。结果表明,陇鉴9828苗期对条锈菌CYR34、CYR32表现中抗,对条锈菌新菌系ZS表现高抗,铭贤169表现高度感病。分别接种条锈菌CYR34、CYR32后,F1代表现感病,F2代单株抗感表现分离,符合1R:3S的分离比值;接种条锈菌新菌系ZS后,F1代表现抗病,F2代植株抗感表现分离,符合3R:1S的分离比值。说明陇鉴9828对条锈菌CYR34、CYR32的苗期抗条锈性均由1对隐性抗性基因控制,对条锈菌新菌系ZS的苗期抗病性由1对显性抗性基因控制,该研究结果可对冬小麦新品种陇鉴9828在生产和育种中应用提供参考。To determine the type and quantity of stripe rust resistance genes at the seedling stage of the new winter wheat variety Longjian 9828,and to provide support for the rational application of its disease resistance genes.In 2022,genetic analysis of stripe rust resistance was performed by inoculating seedlings of the wheat genetic population(Mingxian 169/Longjian 9828)F1,F2 single plants,and their parent materials with single spore isolates of CYR34,CYR32,and the new strain ZS of Pst.The results showed that Longjian 9828 exhibited moderate resistance to CYR34 and CYR32 of Pst,and high resistance to the new strain ZS,while Mingxian 169 was highly susceptible.After inoculating with CYR34 and CYR32,the F1 generation showed susceptibility,and the F2 generation showed a segregation ratio of 1R∶3S.After inoculating with the new strain ZS,the F1 generation showed resistance,and the F2 generation showed a segregation ratio of 3R∶1S.This indicates that the seedling stage stripe rust resistance of Longjian 9828 to CYR34 and CYR32 of Pst is controlled by one pair of recessive resistance genes,and the seedling stage disease resistance to the new strain ZS is controlled by one pair of dominant resistance genes.These results can provide a reference for the application of the new winter wheat variety Longjian 9828 in production and breeding.

关 键 词：冬小麦 新品种 陇鉴9828 条锈病 遗传分析 苗期 

分 类 号：S435.121.42[农业科学—农业昆虫与害虫防治]