摘要
以丹引单粒不育系MS_3和MS_4为母本,以多粒材料75-2-6为共同父本杂交,对其只代和F_2代粒性分析结果表明,F_1代多粒对单粒呈显性趋势;9086和9096杂交组合F_2代单粒株、双粒株和多粒株的比例分别为1:208:3.04和1:2.49:4.28.其单粒与多粒株(包括双粒株)比例分别为1:5.12和1:6.77,两个组合F_2代粒性分离既不符合单基因规律。也不符合两对独立基因分离规律。
We too k MS_3 and MS_4 (monogerm MS Iines)as female parent and crossing with thecommon pollen parent 75-2-6(multigerm),and analysis on the results of fruit type in F_1and F_2, the dominant tendancy has been shown in F_1 with multigerm and monogerm,the re-sults of F_2 in 9086 and 9096 crossing combinations have shown that the ratio of monogerm:digerm : multigerm were 1:2.08:3.04 and 1:2.49:4.28 resp. And the ratio of monogerm:multigerm(digerm included) were 1:5,12 and 1:6.77. The fruit type segregation of F_2 intwo crossing combinations did not confirm the law of single gene neither and did not confirmthe segregation law of two pair of oppositional genes nor.
关键词
甜菜
粒性遗传
分离
Sugar Beet
Genetic of fruit type
Segregation