Quantitative evaluation of endogenous reference genes for ddPCR under salt stress using a moderate halophile

文献类型： 外文期刊

第一作者： Xing, Qinghua

作者： Xing, Qinghua;Wang, Haisheng;Zhao, Baisuo;Mesbah, Noha M.;Li, Jun

作者机构：

关键词： Endogenous reference gene; Salt stress; ddPCR; RT-qPCR; Alkalicoccus halolimnae

期刊名称：EXTREMOPHILES （ 影响因子：2.9； 五年影响因子：2.6 ）

ISSN： 1431-0651

年卷期： 2023 年 27 卷 1 期

页码：

收录情况： SCI

摘要： Droplet digital PCR (ddPCR) is being increasingly adopted for gene detection and quantification because of its higher sensitivity and specificity. According to previous observations and our laboratory data, it is essential to use endogenous reference genes (RGs) when investigating gene expression at the mRNA level under salt stress. This study aimed to select and validate suitable RGs for gene expression under salt stress using ddPCR. Six candidate RGs were selected based on the tandem mass tag (TMT)-labeled quantitative proteomics of Alkalicoccus halolimnae at four salinities. The expression stability of these candidate genes was evaluated using statistical algorithms (geNorm, NormFinder, BestKeeper and RefFinder). There was a small fluctuation in the cycle threshold (Ct) value and copy number of the pdp gene. Its expression stability was ranked in the vanguard of all algorithms and was the most suitable RG for quantification of expression by both qPCR and ddPCR of A. halolimnae under salt stress. Single RG pdp and RG combinations were used to normalize the expression of ectA, ectB, ectC and ectD under four salinities. The present study constitutes the first systematic analysis of endogenous RG selection for halophiles responding to salt stress. This work provides a valuable theory and an approach reference of internal control identification for ddPCR-based stress response models.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序