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苦楝RAPD反应体系的优化
引用本文:陈羡德,陈礼光,陈珺,罗增炎,张志欣,郑郁善.苦楝RAPD反应体系的优化[J].西南林学院学报,2008,28(1):43-47.
作者姓名:陈羡德  陈礼光  陈珺  罗增炎  张志欣  郑郁善
作者单位:1. 福建农林大学林学院,福建,福州,350002
2. 漳州师范学院生物系,福建,漳州,363000
3. 连城县林业局,福建,连城,366200
基金项目:福建省科技厅重点资助项目(2005N003).
摘    要:以苦楝叶片提取的基因组DNA为材料,通过单因素多水平梯度试验,筛选DNA模板,Mg^2+,Taq DNA聚合酶,dNTPs和随机引物的浓度及用量,建立苦楝RAPD技术分析体系.结果表明:当基因组DNA浓度为60 ng/μL,镁离子浓度为3.0 mmol/L,dNTP浓度为0.25 mmol/L,引物浓度为0.30μmol/L,Taq DNA聚合酶用量为1 U/20μL,反应体系总体积20μL时,出现可辨认的清晰谱带.其扩增程序为:94℃预变性2 m in;然后38个循环(94℃变性30 s,37℃退火1 min,72℃延伸80 s);最后72℃延伸8 min,4℃保存.

关 键 词:苦楝  RAPD反应  体系优化
文章编号:1003-7179(2008)01-0043-05
修稿时间:2007年11月23

Optimization of Melia azedarach RAPD Reaction System
CHEN Xian-de,CHEN Li-guang,CHEN Jun,LUO Zeng-yan,ZHANG Zhi-xin,ZHENG Yu-shan.Optimization of Melia azedarach RAPD Reaction System[J].Journal of Southwest Forestry College,2008,28(1):43-47.
Authors:CHEN Xian-de  CHEN Li-guang  CHEN Jun  LUO Zeng-yan  ZHANG Zhi-xin  ZHENG Yu-shan
Institution:CHEN Xian-de, CHEN Li-guang , CHEN Jun , LUO Zeng-yan , ZHANG Zhi-xin , ZHENG Yu-shan (1. Forestry College, Fujian Agriculture and Forestry University, Fuzhou Fujian 350002, China; 2. Department of Biology, Zhangzhou Normal College, Zhangzhou Fujian 363000, China; 3. Forestry Bureau of Liancheng County, Liancheng Fujian 366200, China)
Abstract:Taking genomic DNA extracted from Melia azedarach foliage as experimental material, a RAPD analysis system was established by means of single factor multi - level gradient experiment to select suitable concentration and dosage for template, Mg^2+ , Taq DNA polymerase, dNTPs, and the random primers. The results showed that: Clear electrophoresis bands could be obtained with 60 ng/μL concentration of genomic DNA, 3.0 mmol/L of Mg^2+ , 0.25 mmol/L of dNTP, 0.30 μmol/L of primer, 1 U/(20 μL) of Taq DNA polymerase and when the total reaction volume was 20 μL. The optimum RAPD program was 2 min predenaturation at 94℃, followed by 38 reaction cycles, 8 min extension at 72 ℃ and final storage at 4 ℃. Each reaction cycle included 30 sec of denaturation at 94 ℃, 1 min annealing at 37℃ and 80 sec extension at 72 ℃.
Keywords:Melia azedarach  RAPD reaction  system optimization
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