Table 4. Expression stability values of the candidate reference genes calculated using BestKeeper.

Rank	Tissues		Seedlings and different ploidy		Total
	Gene name	Coeff. of corr (r)*	Gene name	Coeff. of corr (r)*	Gene name	Coeff. of corr (r)*
1	EF1α	0.95	RPL3	0.97	EF1α	0.92
2	GAPDH	0.93	TEF	0.94	GAPDH	0.90
3	RPL3	0.92	EF1α	0.93	RPL3	0.85
4	TEF	0.90	GAPDH	0.82	ACT	0.83
5	ACT	0.86	UBC	0.57	TEF	0.76
6	TIP41	0.86	NAC	0.52	TIP41	0.76
7	NTB	0.82	18S	0.48	TUA	0.68
8	TUA	0.67	ACT	0.35	NAC	0.54
9	18S	0.51	TIP41	0.28	UBC	0.31
10	UBC	0.46	NTB	0.27	18S	0.12

^*Coeff. of corr (r) is the shortage of Coefficient of correlation.