Table 4.

Stable values of data analyses performed using GeNorm, NormFinder, and BestKeeper.

GeNorm		NormFinder		BestKeeper
Gene name	M	Gene name	M	Gene name	SD	CV
UBC	0.776	UBC	0.319	UBC	0.53	2.60
TUB	0.797	TUB	0.319	TUB	0.59	2.38
ACT	0.843	ACT	0.431	ACT	0.85	3.92
TUA	0.968	TUA	0.573	TUA	0.86	3.67

M dictates the stability index: the larger the M value, the worse the expression stability of the gene. SD is standard deviation of the Ct value. CV is coefficient of variation of the Ct value. If SD < 1, the gene was considered to be relatively stable; therefore, the smaller the standard deviation and coefficient of variation, the more stable the gene expression.