珊瑚菜叶绿体基因TrnV-M序列的PCR扩增与分析
发布时间:2018-06-20 12:01
本文选题:珊瑚菜 + TrnV-M ; 参考:《安徽农业科学》2016年33期
【摘要】:[目的]对珊瑚菜TrnV-M基因片段PCR扩增条件进行优化和测序分析,为濒危物种珊瑚菜的种质资源保护和遗传多样性研究提供理论依据。[方法]探索并优化珊瑚菜叶绿体基因片段TrnV-M的PCR扩增条件,并对扩增产物进行测序分析。[结果]珊瑚菜TrnV-M基因片段的PCR最佳反应体系:d NTPs 0.50μL,Buffer 2.50μL,Trn M 1.25μL,TrnV 1.25μL,DNA 1.00μL,r Taq E 0.15μL,dd H2O 18.35μL,总体积25.00μL。最佳扩增程序:94℃预变性3.0 min;94℃变性50 s,58℃退火45 s,72℃延伸1 min 25 s,38个循环;72℃延伸8 min。[结论]在最优体系下获得了清晰、稳定的目的条带,校正后条带长度约为757 bp,通过Gen Bank的BLAST比对,确定为TrnV-M基因片段。
[Abstract]:[objective] to optimize the PCR amplification conditions and sequence analysis of TrnV-M gene fragment of Corallaria corallensis, so as to provide a theoretical basis for the conservation of germplasm resources and the study of genetic diversity of the endangered species. [methods] the PCR amplification conditions of TrnV-M chloroplast gene fragment were explored and optimized, and the PCR products were sequenced. [results] the optimal PCR reaction system of TrnV-M gene fragment in Corallaria corallis L. was: DNTPs 0.50 渭 L buffer 2.50 渭 L Trn 1.25 渭 L TrnV 1.25 渭 L DNA 1.00 渭 L Taq E 0.15 渭 L dd H 2O 18.35 渭 L, total volume 25.00 渭 L. The optimal amplification procedure was: predenaturation at: 94 鈩,
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