WANG Peng,ZHANG Zhen-yu,MA Ling-ling,et al.Optimization of SSR-PCR Reaction System and Primers Screening of Lagerstroemia indica L.[J].HEILONGJIANG AGRICULTURAL SCIENCES,2013,(09):17-21.
紫薇SSR-PCR反应体系优化和引物筛选
- Title:
- Optimization of SSR-PCR Reaction System and Primers Screening of Lagerstroemia indica L.
- 文章编号:
- 1002-2767(2013)09-0017-05
- 分类号:
- S685.99
- 文献标志码:
- A
- 摘要:
- 为加强紫薇分子遗传学研究,以紫薇叶片DNA为模板,采用4因素(模板浓度、dNTP、引物浓度、酶浓度)3水平的L9(34)正交设计,优化紫薇的SSR-PCR反应体系,并对24对紫薇SSR引物进行了筛选。结果表明:紫薇10 μLSSR-PCR的最优反应体系为:Taq酶0.2 U、Mg2+ 2.5 mmol.L-1、dNTP 0.15 mmol.L-1、F-primer 0.25 mmol.L-1、R-primer 0.25 mmol.L-1、DNA 60 ng,ddH2O补至10 μL;24对EST-SSR引物筛选出可扩增出条带的引物23对,其中16对具有多态性,共扩增出清晰条带68条,差异条带39条。
- Abstract:
- In order to further research the molecular markers of Lagerstroemia indica L.,taking DNA of Lagerstroemia indica L.as template,several important parameters influencing SSR-PCR amplification were studied with an orthogonal design by four factors and three levels,as to establish the optimum SSR-PCR reaction system,and the primers were screened from 24 pairs of SSR primers.The results showed that the optimal SSR-PCR reaction system was established as a total volume of 10 μL including Taq DNA polymerase 0.2 U,Mg2+ 2.5 mmol?L-1,dNTPs 0.15 mmol?L-1,0.25 mmol?L-1 of each primer and template DNA 60 ng,deionized water to 10 μL.23 pairs of available primers were screened from 24 pairs of EST-SSR primers,there were 16 pairs of polymorphism primers amplified out 68 clear bands,39 bands with differences.
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备注/Memo
收稿日期:2013-06-24
基金项目:江苏省农业自主创新资金资助项目[CX(11)1039];江苏省科技公共服务平台资助项目(BM2012058);江苏省农业三新工程资助项目[SXGC(2012)412];南京市现代农业生产技术资助项目(201201021);江苏省自然科学基金资助项目(BK2012377)
第一作者简介:王鹏(1981-),男,山东省邹平县人,博士,助理研究员,从事观赏植物分子遗传学研究。E-mail:zzy_199101@139.com。
通讯作者:李亚(1969-),男,安徽省颍上县人,博士,研究员,从事观赏植物研究。E-mail:yalicnbg@yahoo.com.cn。