Biotechnology Bulletin ›› 2017, Vol. 33 ›› Issue (11): 174-179.doi: 10.13560/j.cnki.biotech.bull.1985.2017-0352

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Screening of Reference Genes for Quantitative Real-time PCR Analysis in Asarum sieboldii

ZHAO Xiao-bing1,2, PAN Lei2, LIU Wei2, LIN Mao-yi2, LI Hong-qing1, LIU Zhong2   

  1. 1. School of Life Science,East China Normal University,Shanghai 200241;
    2. School of Pharmacy,Shanghai Jiao Tong University,Shanghai 200240
  • Received:2017-05-03 Online:2017-11-26 Published:2017-11-22

Abstract: Selecting appropriate reference gene is key step for the accurate analysis of the expression variations of target genes. Using several common-used reference genes of SAND-1,ACT,18S rRNA,CYP2,GAPDH and TUB as candidate genes and quantitative real-time PCR analysis of gene expression,the expression stabilities of these 6 candidate genes in various samples from roots,rhizomes,leaves,petioles and flowers in different growth stages of nutrition growth,flowering and post-flowering were assessed,with a set of approaches such as geNorm,NormFinder,BestKeeper and Delta CT,representatively. It is for screening the appropriate reference genes in analysing gene expressions of Asarum sieboldiiMiq. in varied tissues at different growth stage. The results demonstrated that 18S rRNA was the optimal object to act as a proper reference gene in this species because it displayed the most stable expression in almost all samples. This study will provide a feasible and valid calibrate not only for gene function characterization concerning chemical compound biosynthesis but also for gene differential expression analysis in A. sieboldii,ensuring the accuracy and reliability of results.

Key words: Asarum sieboldii, reference gene, GeNorm, NormFinder, BestKeeper, Delta CT