南京林业大学学报(自然科学版) ›› 2014, Vol. 38 ›› Issue (01): 15-20.doi: 10.3969/j.issn.1000-2006.2014.01.003

• 专题报道 • 上一篇    下一篇

杉木SRAP-PCR体系优化

王新民1,郑仁华2,陈金慧1,赵亚琦1,徐 阳1,王 颖1,施季森1*   

  1. 1.南京林业大学,林木遗传与生物技术省部共建教育部重点实验室,江苏 南京 210037;
    2.福建省林业科学研究院,福建 福州 350012
  • 出版日期:2014-01-15 发布日期:2014-01-15
  • 基金资助:
    收稿日期:2013-07-26 修回日期:2013-11-20
    基金项目:国家林业公益性行业科研专项项目(201004049); 国家自然科学基金重点项目(30930077); 江苏高校优势学科建设工程资助项目(PAPD)
    第一作者:王新民,硕士生。*通信作者:施季森,教授。E-mail: jshi@njfu.edu.cn。
    引文格式:王新民,郑仁华,陈金慧,等. 杉木SRAP-PCR体系优化[J]. 南京林业大学学报:自然科学版,2014,38(1):15-20.

Optimization of Chinese fir SRAP-PCR system

WANG Xinmin1,ZHENG Renhua2,CHEN Jinhui1,ZHAO Yaqi1,XU Yang1,WANG Ying1,SHI Jisen1*   

  1. 1.Key Laboratory of Forest Genetics and Biotechnology of Ministry of Education,Nanjing Forestry University, Nanjing 210037, China;
    2. Fujian Academy of Forestry Sciences, Fuzhou 350012,China
  • Online:2014-01-15 Published:2014-01-15

摘要: 为建立杉木SRAP-PCR反应体系,利用L16(45)正交设计对影响杉木SRAP-PCR反应体系的Mg2+、dNTPs、引物、Taq酶和DNA浓度5种因素的4个水平进行优化实验,结合正交直观分析和方差分析,对影响反应较大的Mg2+、dNTPs和引物浓度进行单因素实验,最终确定杉木SRAP-PCR最佳的反应体系为:在20 μL的PCR反应体系中,Mg2+浓度为2.25 mmol/L、dNTPs为0.15 mmol/L、引物浓度为0.4 μmol/L、Taq酶为1.5 μmol/min、模板DNA为60 ng,10×PCR Buffer 2 μL,不足部分用双蒸水补充至20 μL。PCR反应程序的两步最适退火温度第1步为35 ℃,第2步为53 ℃。利用上述反应体系进行杉木PCR扩增,能得到清晰、稳定的条带。

Abstract: In order to optimize SRAP-PCR reaction system for Chinese fir,the orthogonal design L16(45)was considered with different concentrations of Mg2+, dNTPs, primer, Taq DNA polymerase and DNA template in SRAP-PCR reaction system for Chinese fir. The results of PCR were evaluated by visual and variance analysis,then the concentrations of Mg2+,dNTPs,primer were rectified with single-factor design. Finally,the results showed that the best reaction system was the combination in 20 μL reaction solution,containing of Mg2+ 2.25 mmol/L,dNTPs 0.15 mmol/L,primer 0.4 μmol/L,Taq DNA polymerase1.5 μmol/min and DNA template 60 ng,2 μL10×PCR Buffer and ddH2O to 20 μL. The first optimal annealing temperature was 35 ℃,and the second step was 53 ℃. The optimized reaction system of Chinese fir described above can get clear and stable bands.

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