Fig. 4From: Selection and validation of appropriate reference genes for RT–qPCR analysis of Nitraria sibirica under various abiotic stressesStability analysis of the 10 candidate reference genes by NormFinder, BestKeeper, comparative ΔCt and RefFinder. Within a pane, the smaller the value, the lighter the colour, and the higher the stability of the candidate reference genesBack to article page