Validation of reference genes for RT-qPCR studies in Stevia rebaudiana in response to elicitor agents

Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology
Simone Ribeiro LuchoE J B Braga

Abstract

Stevia rebaudiana is an important source of natural steviol glycosides and is of increasing interest in various fields of study. Therefore, understanding the molecular processes regulating its metabolism is of great importance. In this study, the stability of seven reference genes (18S ribosomal RNA, Actin, Aquaporin, Calmodulin, Eukaryote elongation factor 1-α, Malate dehydrogenase, and Ubiquitin) under the effect of three stress-related elicitors (methyl jasmonate, salicylic acid, and spermidine) was evaluated in stevia plants. We used RefFinder software, which makes use of the four main currently available algorithms for reference gene selection: geNorm, NormFinder, BestKeeper, and the Comparative ∆Ct method. The results indicated that Ubiquitin and Actin can be used as reference genes under all tested experimental conditions. The genes, 18S ribosomal RNA, traditionally used as a reference gene, along with Calmodulin, showed the lowest stability. The expression of Deoxyxylulose-5-phosphate synthase and Kaurenoic acid hydroxylase genes was used to confirm the validated reference genes, showing that inadequacy of the reference gene may lead to erroneous results. This is the first study on the stability of reference genes in St...Continue Reading

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Citations

Jun 7, 2019·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Ahmed M M GabrMarian Brestic
Jul 28, 2021·Pest Management Science·Maria P Erazo-GarciaAntonio Leon-Reyes

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Methods Mentioned

BETA
electrophoresis
PCR

Software Mentioned

BestKeeper
RefFinder
geNorm
PerlPrimer
eEF
SPD
MAL
R
NormFinder

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