西南师范大学学报(自然科学版)
西南師範大學學報(自然科學版)
서남사범대학학보(자연과학판)
JOURNAL OF SOUTHWEST CHINA NORMAL UNIVERSITY
2014年
12期
37-42
,共6页
桂腾琴%孙敏%陆春连%刘群%代婷%柏和燕
桂騰琴%孫敏%陸春連%劉群%代婷%柏和燕
계등금%손민%륙춘련%류군%대정%백화연
梨%正交设计%ISSR体系优化
梨%正交設計%ISSR體繫優化
리%정교설계%ISSR체계우화
in pear%orthogonal design%ISSR system optimization
以‘饼子梨’为试材,利用正交设计L16(45)研究了反应体系中引物、模板DNA浓度等5个因素4个水平对梨反应体系的影响,PCR结果应用极差分析和MINITAB软件对扩增结果进行方差分析.梨最佳ISSR‐PCR反应体系:25μL反应体系中含2.5μL 10× Buffer ,2.0 mmol/L Mg2+,0.25 mmol/L dNTPs ,0.25μmol/L引物,60 ng模板DNA ,0.75 U Taq DNA聚合酶.优化的ISSR‐PCR反应体系稳定性高和重复性较好,为梨品种指纹图谱构建和遗传多样性分析奠定基础.
以‘餅子梨’為試材,利用正交設計L16(45)研究瞭反應體繫中引物、模闆DNA濃度等5箇因素4箇水平對梨反應體繫的影響,PCR結果應用極差分析和MINITAB軟件對擴增結果進行方差分析.梨最佳ISSR‐PCR反應體繫:25μL反應體繫中含2.5μL 10× Buffer ,2.0 mmol/L Mg2+,0.25 mmol/L dNTPs ,0.25μmol/L引物,60 ng模闆DNA ,0.75 U Taq DNA聚閤酶.優化的ISSR‐PCR反應體繫穩定性高和重複性較好,為梨品種指紋圖譜構建和遺傳多樣性分析奠定基礎.
이‘병자리’위시재,이용정교설계L16(45)연구료반응체계중인물、모판DNA농도등5개인소4개수평대리반응체계적영향,PCR결과응용겁차분석화MINITAB연건대확증결과진행방차분석.리최가ISSR‐PCR반응체계:25μL반응체계중함2.5μL 10× Buffer ,2.0 mmol/L Mg2+,0.25 mmol/L dNTPs ,0.25μmol/L인물,60 ng모판DNA ,0.75 U Taq DNA취합매.우화적ISSR‐PCR반응체계은정성고화중복성교호,위리품충지문도보구건화유전다양성분석전정기출.
Orthogonal design has been applied to optimize ISSR‐PCR amplification system of in pear in five factors such as primer ,dNTPs ,template DNA ,Taq DNA polymerase and Mg2+ at four levels .The result of PCR has been analyzed by range analysis and variance analysis .An optimal reaction system (25μL) has been established ,i .e .2 .5 μL 10 × Buffer ,2 .0 mmol/L M g2+ ,0 .25 mmol/L dN T Ps ,0 .25 μmol/L prim‐er ,60 ng template DNA ,0 .75 U Taq DNA polymerase .The results indicate that the optimized reaction system was stable and repeatable .The objective of the study is to provide a scientific basis for the con‐structing DNA fingerprints and genetic diversity analysis of in pear .