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Screening Reliable Reference Genes for RT-qPCR Analysis of Gene Expression in Moringa oleifera.


ABSTRACT: Moringa oleifera is a promising plant species for oil and forage, but its genetic improvement is limited. Our current breeding program in this species focuses on exploiting the functional genes associated with important agronomical traits. Here, we screened reliable reference genes for accurately quantifying the expression of target genes using the technique of real-time quantitative polymerase chain reaction (RT-qPCR) in M. oleifera. Eighteen candidate reference genes were selected from a transcriptome database, and their expression stabilities were examined in 90 samples collected from the pods in different developmental stages, various tissues, and the roots and leaves under different conditions (low or high temperature, sodium chloride (NaCl)- or polyethyleneglycol (PEG)- simulated water stress). Analyses with geNorm, NormFinder and BestKeeper algorithms revealed that the reliable reference genes differed across sample designs and that ribosomal protein L1 (RPL1) and acyl carrier protein 2 (ACP2) were the most suitable reference genes in all tested samples. The experiment results demonstrated the significance of using the properly validated reference genes and suggested the use of more than one reference gene to achieve reliable expression profiles. In addition, we applied three isotypes of the superoxide dismutase (SOD) gene that are associated with plant adaptation to abiotic stress to confirm the efficacy of the validated reference genes under NaCl and PEG water stresses. Our results provide a valuable reference for future studies on identifying important functional genes from their transcriptional expressions via RT-qPCR technique in M. oleifera.

SUBMITTER: Deng LT 

PROVIDER: S-EPMC4991797 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Screening Reliable Reference Genes for RT-qPCR Analysis of Gene Expression in Moringa oleifera.

Deng Li-Ting LT   Wu Yu-Ling YL   Li Jun-Cheng JC   OuYang Kun-Xi KX   Ding Mei-Mei MM   Zhang Jun-Jie JJ   Li Shu-Qi SQ   Lin Meng-Fei MF   Chen Han-Bin HB   Hu Xin-Sheng XS   Chen Xiao-Yang XY  

PloS one 20160819 8


Moringa oleifera is a promising plant species for oil and forage, but its genetic improvement is limited. Our current breeding program in this species focuses on exploiting the functional genes associated with important agronomical traits. Here, we screened reliable reference genes for accurately quantifying the expression of target genes using the technique of real-time quantitative polymerase chain reaction (RT-qPCR) in M. oleifera. Eighteen candidate reference genes were selected from a trans  ...[more]

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