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Single nucleotide polymorphism of squalene synthase and squalene epoxidase genes and their correlation with content of saponins in Eleutherococcus senticosus
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- Author:
- No author available
- Journal Title:
- Chinese Traditional and Herbal Drugs
- Issue:
- 10
- DOI:
- No doi available
- Key Word:
- 鲨烯合酶;鲨烯环氧酶;单核苷酸多态性;刺五加总皂苷;相关性
Abstract： 目的 筛选刺五加鲨烯合酶(SS)和鲨烯环氧酶(SE)基因存在的单核苷酸多态性(SNP)位点,分析各SNP位点与刺五加总皂苷量的相关性.方法 采用分光光度法测定刺五加总皂苷的量,并划分为具有显著差异(P＜0.01)的高、低量组;RT-PCR法扩增刺五加SS、SE基因,根据测序结果筛选SNP位点,利用R×C表的x2检验分析相关关系.结果 刺五加SS基因存在6处SNP,其中704 bp位点为错义突变,其他位点为同义突变,各位点均不与刺五加总皂苷量显著相关.SE基因存在9处SNP,其中导致错义突变的164、199、227、232 bp位点及同义突变的279、285 bp位点与刺五加总皂苷量显著相关(P＜0.05),其他位点为同义突变,与刺五加总皂苷量间无显著相关性.结论 刺五加SS和SE基因存在SNP,SE基因164～285 bp位点的AGAACG与刺五加总皂苷高量组显著相关,TAGTTC与低量组显著相关.
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