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辐射诱变有提高基因突变率、打破性状连锁和促进基因重组、克服植物自交不亲和性、促进远缘杂交实现基因转移等优点。近 4 0年来 ,国内外大麦辐射育种己取得了较大发展和成就。实践证明 ,辐射诱变在诱发大麦产量、株高、熟期、抗性、品质、雄性不育等突变 ,创造新种质和选育新品种等方面是行之有效的。但我国大麦辐射育种与世界水平相比存在较大差距 ,今后必须一方面改变诱变源因子利用和辐照处理方法单一的局面 ,加强先进辐射诱变技术运用 ;另一方面注重在矮秆资源创新、突变体间接利用、啤酒品质突变、大麦辐照介导遗传转化等方面研究
Radiation mutagenesis has the advantages of increasing the gene mutation rate, breaking the linkage of traits and promoting gene recombination, overcoming the incompatibility of plant self-incompatibility, and promoting the distant hybridization to achieve gene transfer. In recent 40 years, domestic and foreign barley radiation breeding has made greater development and achievements. Practice has proved that radiation induced mutation in the induction of barley yield, plant height, maturity, resistance, quality, male sterility and other mutations, to create new germplasm and breeding new varieties is effective. However, there is a big gap between our country’s barley radiation breeding and the world level. In the future, we must change the single factor of mutagenic source factor utilization and irradiation treatment, and strengthen the application of advanced radiation mutagenesis. On the other hand, Innovation, indirect use of mutants, beer quality mutation, barley radiation-mediated genetic transformation and so on