Table 2. Evaluation of expression stability of reference genes by geNorm, NormFinder, and BestKeeper, considering the entire dataset of ‘Santa Clara’- and ‘LAM 157’-ToCMoV samples.

	geNorm		NormFinder		BestKeeper
Ranking order	Gene Symbol	Stability value (M)	Gene Symbol	Stability Value (M)	Gene Symbol	Corr.Coef. (r)
1	EXP	0.135	EF1	0.008	TIP41	0.974
2	TIP41	0.143	EXP	0.010	EF1	0.972
3	EF1	0.151	TIP41	0.011	GAPDH	0.961
4	CAC	0.167	CAC	0.012	EXP	0.959
5	GAPDH	0.182	UBI	0.014	CAC	0.943
6	UBI	0.203	PDS	0.017	UBI	0.894
7	APT	0.222	GAPDH	0.018	PDS	0.893
8	PDS	0.238	APT	0.018	APT	0.877
9	ACT	0.254	ACT	0.019	ACT	0.817
10	TUB	0.273	TUB	0.025	TUB	0.675