Comparison of Polymorphism of RFLP, RAPD and AFLP in Rice Nongken 58S and 1514
- 生命科学－已发表论文 
本文用RFLP、RAPD和AFLP三种分子标记技术对农垦 58SX1 51 4组合及其F2 极性集团进行了分析 ,比较了它们多态性和阳性的比率 ,结果显示 ,三种分子标记的多态性和与目的基因连锁的阳性比率分别为 1 9.93% ,5.2 3% ;1 1 .1 7% ,0 .76%和 86.47% ,7.52 %。AFLP的多态性比率和阳性比率均为最高。分析探讨了三种分子标记技术的优缺点及其在区间高分辨率作图和筛选与目的基因连锁标记中的运用RFLP, RAPD and AFLP analysis were performed between Nongken 58S and 1514, two varieties of rice, and their bulked extremes of F 2. The rate of polymorphism and positive marker linked to target gene was compared. The results indicated that the rates of polymorphism and positive marker of RFLP, RAPD and AFLP are 19.93%, 5.23%;11.17%, 0.76% and 86.47%, 7.52%, respectively. The rate of polymorphism and positive marker of AFLP is highest in the three kinds of molecular marker systems. It was discussed that the advantages and disadvantages, and application of the three kinds of molecular marker systems in constructing a high resolution map of a specific chromosome region and selecting linkage markers to target gene.