LIYing,XIEZhan-ling,TIANFei,et al.EstablishmentandPrimerScreeningoftheSSR-PCRReactionSystemfor Armillarialuteo-virens[J].Northern Horticulture,2013,37(16):114-119.
黄绿蜜环菌SSR-PCR反应体系的优化及引物筛选
- Title:
- EstablishmentandPrimerScreeningoftheSSR-PCRReactionSystemfor Armillarialuteo-virens
- 文章编号:
- 1001-0009(2013)16-0114-06
- Keywords:
- Armillarialuteo-virens; SSR-PCR; systemoptimization; orthogonaldesign; primers
- 分类号:
- S503.53
- 文献标志码:
- A
- 摘要:
- 以CTAB法提取的黄绿蜜环菌(Armillarialuteo-virens)DNA为模板,应用L16(45)正交实验设计,对Mg2+、dNTPs、引物和Taq DNA聚合酶、模板浓度5种因素进行SSR-PCR反应体系优化,建立了适合黄绿蜜环菌SSR-PCR反应的最佳体系并对退火温度进行检测。结果表明:在15μL反应体系中包括:1×PCRBuffer,100ng模板DNA,dNTPs217μmol/L,引物0.5μmol/L,Taq DNA聚合酶0.75U,Mg2+1.3mmol/L。稳定性检测证明,该反应体系具有较高的稳定性和重复性,并从34对引物中共筛选出扩增条带清晰、多态性丰富的SSR引物8对。该体系的建立为今后利用SSR标记对黄绿蜜环菌遗传多样性研究、亲缘关系分析及种质资源鉴定等研究提供了依据。
- Abstract:
- TakingDNAextractedfrom Armillarialuteo-virens byCTABmethodastemplate,L16(45)orthogonaldesignwasusedtooptimizethemainfactorsaffectingtheSSR-PCRsystem,whichwereMg2+,dNTPs,primers,Taq DNApolymeraseandtemplateDNAconcentration.ItestablishedtheoptimumSSR-PCRreactionamplificationsystemof Armillarialuteo-virens,andbasedontheoptimumSSR-PCRreactionamplificationsystemannealingtemperaturewasselected.Theresultsshowedthata15μLreactionsystemcontained1×PCRBuffer,100ngtemplateDNA,dNTPs 217μmol/L,primer0.5μmol/L,TaqDNApolymerase0.75U,Mg2+1.3mmol/L.Thereactionsystemwasprovedingoodstabilityandreproducibility.Atthesametime,8primercombinationswereselectedwiththeoptimizedsystemamong34primercombinations,whichhadabundantpolymorphismbands.Thisstudycouldbeusedinanalysisofgeneticdiversity,geneticrelationshipandfingerprintin Armillarialuteo-virens.
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备注/Memo
第一作者简介:李颖(1987-),女,硕士,研究方向为真菌分子遗传。E-mail:liying51196@126.com.
责任作者:谢占玲(1966-),女,博士,教授,硕士生导师,研究方向为真菌及酶学。E-mail:xiezhanling2003@yahoo.com.cn.
基金项目:国家自然科学基金资助项目(31260021);青海省自然科学基金资助项目(2011-z-724);国家重点实验室培育基地青海省高原作物种质资源创新与利用重点实验室开放课题资助项目(2011-05)
收稿日期:2013-04-09