摘要：[目的]研究SRAP分子标记用于苦荞分析中的条件优化。[方法]采用交互正交设计L27(313)对苦荞SRAP-PCR反应体系进行了5因素(Mg2+、dNTP、Taq酶、模板DNA和引物)3水平优化筛选,比较了非变性和变性PAGE检测方法,并进行了DYCZ-24F与DYCZ-20C2种电泳操作系统的对比试验。[结果]4个单因素(Mg2+、dNTP、Taq酶和引物)和2个交互作用(Mg2+×dNTP、Mg2+×Taq酶)对苦荞SRAP-PCR有极显著影响;最佳反应体系为:20μl总体积,Mg2+1.5mmol/L,dNTP0.2mmol/L,Taq酶1.5U,模板DNA40ng,引物0.25μmol/L,10×缓冲液2μl。运用该体系对7份苦荞材料进行扩增,扩增条带清晰、多态性高、重复性好。将扩增产物进行非变性与变性PAGE和2种电泳操作系统检测,结果显示非变性PAGE、DYCZ-24F操作系统更适合于SRAP的分析。[结论]为今后构建苦荞SRAP遗传图谱奠定了基础。

摘要：文章详细阐述了巴彦淖尔市盐碱地的分布范围、类型、面积、形成原因,以及盐碱造林技术和治理成效,分析不同整地措施对盐碱地全盐量与pH值的影响,比对乡土树种和引进树种的抗盐碱能力。

摘要：[Objective] The aim was to investigate the optimal conditions of SRAP molecular marker used in the analysis on Fagopyrum tataricum（L.）Gaertn.[Method]SRAP-PCR amplification system on Fagopyrum tataricum was optimized by interactive orthogonal design L27（313）in 5 elements（Mg2＋,dNTP,Taq DNA polymerase,template DNA and primer）at 3 *** the non-denaturing and denaturing PAGE detection methods were *** comparative test of DYCZ-24F and DYCZ-20C electrophoresis operating systems was carried out.[Result]The effects of four single-factor（Mg2＋,dNTP,Taq DNA polymerase and primer）and two interactions（Mg2＋×dNTP,Mg2＋×Taq DNA polymerase）on tartary buckwheat SRAP-PCR were *** optimal reaction system was established containing 1.5 mmol/L Mg2＋,0.2 mmol/L dNTP,1.5 u Taq DNA polymerase,40 ng DNA,0.25 μmol/L primer and 2 μl 10×*** samples of tartary buckwheat were amplified using this system,and electrophoresis results showed clear bands,high level of polymorphism and good *** PCR products were tested by denaturing and non-denaturing PAGE,and the results showed that the non-denaturing PAGE,DYCZ-24F operating system was more suitable for SRAP analysis.[Conclusion]This study established a foundation for the construction of SRAP genetic map of tartary buckwheat.