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1.航天育种技术从粒子生物学、物理场生物学和重力生物学等不同角度研究了航天环境各因素的诱变特性,初步建立了“多代混系连续选择与定向跟踪筛选”的空间诱变育种技术。进一步优化了高能粒子辐照、物理场处理等地面模拟航天诱变靶室设计与样品处理程序,使得样品批处理效率大大提高;比较分析了高能粒子诱变与γ射线诱变的差异,探讨了高能粒子诱变小麦的分子生物学机制,完善了地面模拟航天育种技术方法,开创了地面模拟航天环境诱变作物进行遗传改良的新途径。
1. Aerospace breeding technology Studying the mutagenic characteristics of various factors in aerospace environment from the aspects of particle biology, physical field biology and gravitational biology, and initially establishing the “space-induced” multi-generation mixed continuous selection and directional tracking screening Variable breeding technology. Further optimization of the design and sample processing procedures for simulated space flight targets such as high-energy particle irradiation and physical field processing have greatly improved the sample batch processing efficiency. The differences between high-energy particle mutagenesis and γ-ray mutagenesis have been analyzed. The molecular biology mechanism of high-energy particle mutagenesis of wheat improved the method of ground simulated space shuttle breeding and opened up a new way of genetically modifying mutagenic crops on the ground simulated space environment.