大豆新品系抗SMV鉴定及其抗性来源分析  

Identification of Resistance and Preliminary Analysis of Resistance Sources for the Soybean Mosaic Virus in New Soybean Lines

作　　者：黄志平[1] 李杰坤[1] 王维虎[1] 胡国玉[1] 吴倩[1] 王大刚[1] 

机构地区：[1]安徽省农业科学院作物研究所/安徽省农作物品质改良重点实验室,安徽合肥230031

出　　处：《大豆科学》2017年第4期598-605,共8页Soybean Science

基　　金：国家自然科学基金(31571687);安徽省自然科学基金(1708085MC69);国家大豆产业技术体系建设专项资金(CARS-04)

摘　　要：大豆花叶病毒(soybean mosaic virus,SMV)病是危害我国大豆生产的主要病害之一。利用黄淮大豆产区的SMV优势株系SC3和SC7对选育的394份大豆高世代新品系进行抗病性评价并分析其抗性来源。结果表明:对SC3株系表现高抗的品系有120份,占试验品系总数的30.46%;高抗SC7株系的品系有80份,占20.30%;对SC3和SC7株系都表现高抗的品系有64份,占鉴定品系数的16.24%。如大豆新品系H20443、H21660、H22501、Y50574和Y52933等通过审定后用于大田的生产将对SMV的流行起到控制作用。对选育的大豆新品系进行抗性来源分析可以发现,RT(抗病型)×RT组合获得抗病型后代品系的概率最高,其后依次为RT×IT(中间型)>RT×ST(感病型)>IT×RT>IT×IT>ST×RT>ST×IT,后代品系出现抗病型概率最低的组合是ST×ST。这些结果可为大豆新品系的选育和抗病育种亲本的组配提供参考依据。Soybean mosaic virus disease is one of main diseases reducing quality and yield in soybean [ Glycine max （ l ） Merr. ]. The resistance of 394 new bred soybean lines was tested using soybean mosaic virus （SMV） prevalent strains SC3 and SC7. The resistance sources were carried out through investigating the parental resistance. The results showed that among the 394 lines inoculated by SC3 and SC7, 120 （ 30. 46% ） and 80 （ 20. 30% ） exhibited high resistance, respectively. 64 lines （16. 24% ）, such as H20443, H21660, H22501, Y50574 and Y52933 et al. were high resistant to both SC3 and SC7, and should be utilized as resistance resources in breeding programs. The analysis of the resistance sources of new lines showed that the offspring of resistant type （RT）× RT was the highest probability with the resistance new lines, and others successively were the offspring of RT × intermediate type （IT） 〉 RT × susceptible type （ST） 〉 IT × RT 〉 IT × IT 〉 ST ×RT 〉 ST ×IT, the offspring of ST× ST was the lowest probability with the resistance new lines. These results will provide references for the breeding of new soybean lines and the combination of resistance breeding parents.

关 键 词：大豆 大豆花叶病毒 抗性鉴定 抗性来源 

分 类 号：S565.1[农业科学—作物学]