【摘要】 <正> 小麦非整倍体研究始于三十年代,五十年代迅速发展,近年来已在小麦细胞、遗传、育种、系统发育等研究方面发挥着越来越显著的作用。我们于1974年开始了这方面的研究,主要目的是借助于“小麦非整倍体系统”材料和染色体技术,进行小麦的基本理论研究,揭示其规律,并探索育种新途径。为此,首先要培育适应我国具体情况的优良品种单体系统。更多还原

【Abstract】 On the basis of the established monosomic lines of the variety Chinese Spring,a new set of monosomie lines has been developed in the Chinese spring wheat cultivar "Beijing Red No. 1 ". The resulting monosomics were test-crossed in 1979 with respective ditelosomics of Chinese Spring. As a result, 15 monosomic lines have been proved to be correct, with a karyotype 20″+t′.In the line 5D, the telocentric formed a heteromorphic bivalent, showing that there had been a univalent-shift. The remaining monosomic lines involving 1A, 6A, 2B, 2D and 3D, due to the lack of respective ditelosomic stocks in 1979, are to be test-crossed and examined in 1981. Some aspects of univalent-shift were discussed.更多还原