摘要
利用改良的CTAB方法从香蕉叶片中提取高质量的DNA。在参考一般RAPD分析反应程序的基础上,经过反复试验,确定适合香蕉PCR扩增程序为:94℃预变性5min;94℃变性1min;38℃退火1min;72℃延伸2min;循环45次;最后72℃延伸2min。PCR扩增的体系(总体积25μl)为:模板DNA20ng,dNTP200μmol/L,10×PCRBuffer2.5μl,引物0.20μmol/L,Taq酶0.75U,ddH2O17.85μl。
Using the improved method of CTAB, high purity DNA was obtained from banana leaves. Based on the common RAPD reaction program and adjusting experiments, the optimal amplification program was described as follows: 94℃ for 5 min: 45 cycles at 94 ℃ for 1 min, 38℃ for 1 min and 72℃ for 2 min: 72℃ for 2 min at last. PCR system(25 μl total volumes)contains: 20 ng of genomic DNA, 200 μmol/L of dNTP, 2.5 μl of 10×PCR Buffer, 0.20 μmol/L of primer, 0.75 U Taq DNA polymerase and 17.85 μl of ddH2O.
出处
《中国农学通报》
CSCD
北大核心
2009年第16期51-55,共5页
Chinese Agricultural Science Bulletin
基金
福建省科技重大专项果茶专项"闽台特色果茶良种选育研究及产业化"(2004NZ02)
福建省科技厅重点项目"福建省香蕉种质资源RAPD分析研究与新品种引"(2005N004)