摘要
利用抗病青稞种质资源青永110和青永132分别与高感材料2018.S杂交并自交构建的F_(3)家系群体,采用人工接种鉴定法进行抗条纹病性遗传分析。遗传分析结果表明,青永132/2018.S F_(3)家系群体符合57R∶7S的同时也符合55R∶9S的抗感分离比,表明青永132对条纹病的抗性受3对基因控制;青永110/2018.S F_(3)家系群体符合13R∶3S的同时也符合3R∶1S的抗感分离比,表明青永110抗条纹病受一显一隐两对基因独立控制,或者由一对显性基因控制。研究结果可为青稞抗条纹病基因的研究利用及抗病育种提供前期理论基础。
In this study,the F_(3)family populations constructed by hybridization and self-crossing of diseaseresistant hulless barley germplasm resources Qingyong 110 and Qingyong 132 with high-susceptible materials 2018.S were used to analyze the genetic resistance to leaf stripe disease by artificial inoculation identification.The results of genetic analysis showed that the F_(3)family population of Qingyong 132/2018.S conformed to the resistancesusceptibility separation ratio of 57R:7S and 55R:9S,indicating that the resistance of Qingyong 132 to leaf stripe disease was controlled by 3 pairs of genes.The Qingyong 110/2018.S F_(3)family population conforms to the 13R:3S and also conforms to the resistance-to-susceptibility separation ratio of 3R:1S,indicating that Qingyong 110 resistance to leaf stripe disease is independently controlled by one dominant gene and one recessive gene,or controlled by a pair of dominant genes.The results of this study can provide reference for future disease resistance breeding of hulless barley.
作者
张赛
谭泽敏
侯璐
Zhang Sai;Tan Zemin;Hou Lu(Academy of Agriculture and Forestry Sciences of Qinghai University(Qinghai Academy of Agriculture and Forestry Sciences),Laboratory for Research and Utilization of Qinghai-Tibet Plateau Germplasm Resources,Key Laboratory of Agricultural Integrated Pest Management,Qinghai Province,Xining 810016,China)
出处
《青海科技》
2025年第2期187-193,共7页
Qinghai Science and Technology
关键词
青稞
抗条纹病性基因
遗传分析
Hulless Barley
Leaf stripe disease resistance gene
Genetic analysis
