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高质量枣基因组DNA提取方法
引用本文:王永康,王永勤,田建保,樊新平,李登科,隋串玲,黄丛林.高质量枣基因组DNA提取方法[J].果树学报,2006,23(2):310-312.
作者姓名:王永康  王永勤  田建保  樊新平  李登科  隋串玲  黄丛林
作者单位:1. 山西省农业科学院果树研究所,山西太谷,030815
2. 北京市农林科学院北京农业生物技术研究中心,北京,100089
基金项目:科技部科技基础条件平台建设计划 , 农业部作物种质资源保护项目
摘    要:主要针对枣组织中多糖严重干扰基因组DNA提取质量的问题,比较了常规CTAB法、TE3D法和改良CTAB法3种方法的处理效果。结果表明:常规CTAB法提取DNA难以除去多糖类杂质;TE3D法提取的DNA多糖杂质少,但产率低,易降解,褐化严重;改良CTAB法提取DNA产率高,无明显降解,杂质少,D260nm/D280nm比值1.80左右,通过基因组DNA-AFLP指纹图谱分析,完全满足实验要求。并对改良CTAB法的关键步骤作了具体分析讨论。

关 键 词:枣树  DNA提取  改良CTAB法
文章编号:1009-9980(2006)01-310-03
收稿时间:2005-06-10
修稿时间:2005-10-17

Extraction methods of high quality DNA from Zizyphus jujuba
WANG Yong-kang,WANG Yong-qin,TIAN Jian-bao,FAN Xin-ping,LI Deng-ke,SUI Chuan-ling,HUANG Cong-lin.Extraction methods of high quality DNA from Zizyphus jujuba[J].Journal of Fruit Science,2006,23(2):310-312.
Authors:WANG Yong-kang  WANG Yong-qin  TIAN Jian-bao  FAN Xin-ping  LI Deng-ke  SUI Chuan-ling  HUANG Cong-lin
Institution:1.Rresearch Institute of Pomology, Shanxi Academy of Agricultural Science, Taigu, Shanxi 030815 China; 2.Beijing Agro-Biotechnology Research Center, Beijing 100089 China
Abstract:In order to solve the problem of polyhexose interfering the genomic DNA extraction of Zizyphus jujuba Mill. , 3 methods, the conventional CTAB, TE3D and improved CTAB were compared. The results showed that the conventional CTAB method was difficult to get rid of polyhexose completely; the TE3D method could remove polyhexose effectively, but extraction rate was very low, DNA browned and degraded seriously; the improved CTAB method was an effective way to solve all kinds of problem, DNA concentration was up to 1000 ng/μL, degradation was light and impurity was little, A260/A280 was 1.80 or so. When tested through the DNA-AFLP fingerprinting, they could meet experiment requirement perfectly. In addition, the key steps and main features of the improved CTAB method are discussed.
Keywords:Zizyphus jujuba Mill    DNA extraction  Improved CTAB method
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