详细信息
不同保存条件下云杉八齿小蠹总DNA提取方法的比较分析 被引量:5
Comparative Analysis on Methods for Genomic DNA Extraction of Ips typographus L.
文献类型:期刊文献
中文题名:不同保存条件下云杉八齿小蠹总DNA提取方法的比较分析
英文题名:Comparative Analysis on Methods for Genomic DNA Extraction of Ips typographus L.
作者:张晟铭[1,2] 张真[2] 王鸿斌[2] 迟德富[1]
第一作者:张晟铭
机构:[1]东北林业大学生命科学学院;[2]中国林业科学研究院森林生态环境与保护研究所国家林业局森林保护学重点实验室
年份:2009
卷号:37
期号:13
起止页码:5883-5885
中文期刊名:安徽农业科学
外文期刊名:Journal of Anhui Agricultural Sciences
收录:北大核心:【北大核心2008】;
基金:国际科技合作基金项目(2006DFA31790);黑龙江省重大科技攻关项目(GB06B304)
语种:中文
中文关键词:云杉八齿小蠹;DNA提取;COI序列
外文关键词:Ips typographus L. ; DNA extraction; COl Sequence
分类号:Q963
摘要:[目的]探讨云杉八齿小蠹总DNA的提取方法。[方法]将野外采集的云杉八齿小蠹分别保存在95%的酒精浸泡、自然风干和-40℃条件下,采用改良CTAB法、KAc法、盐析法和SDS法对不同保存条件下样品材料总DNA进行提取。[结果]结果表明,4种方法均可从95%酒精浸泡标本和-40℃冻存样品中提取出高质量的总DNA。相比之下改良CTAB法最为简单、高效、经济。以COI的通用引物对所提取的总DNA进行扩增检测,结果表明,采用改良的CTAB法可以从95%的酒精浸泡样品和-40℃冰存样品DNA中扩增出清晰的单一条带,片段大小700 bp,经与已知昆虫的COI片段分子量对比,可以初步断定其为CO I片段。[结论]该研究结果为今后小蠹类的分子系统学研究奠定基础。
[ Objective]Th purpose of this research was to discuss methods for genomic DNA extraction of Ips typographus L. [ Method ] Using four methods, inculding improved cetyhrimethyl ammonium bromide (CTAB) method, the potassium acetate (KAc) method, the salting-out method and the sodium dodecyl sulfate (SDS) method extracted the genomic DNA of Ips typographtas L. preserved in 95% ethanol, naturally dried or frozen under -40℃ conditions. [Result]The results indicated that all of the four methods could extract the purity and quantity genomic DNA from beetles dipped in 95% ethanol preserved and frozen ones, and the improved CTAB method was the most easy, efficient and ecomomic. Using the obtained DNA and the universal COI primer could amplify a clear single band, about 700 bp sequence. Compared the molecular weight with another insects' COI sequence, a deduction could be draw that it was the COI .sequence of 1. typographus L.. [ Conclusion]This study will provide a foundation research for the molecular systematics of I. typogra L.
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