Table 2.

Expression stability of candidate reference genes as calculated by Normfinder.

Rank	Biotic		Tissue		NaCl		PEG		Total
	Gene	Stability	Gene	Stability	Gene	Stability	Gene	Stability	Gene	Stability
1	RAN	0.142	TUBβ	0.112	ACT7	0.040	RAN	0.053	RAN	0.116
2	ACT7	0.357	EF1α	0.126	RAN	0.167	ACT7	0.173	ACT7	0.262
3	EF1α	0.499	RAN	0.136	UBQ	0.190	DnaJ	0.206	EF1α	0.349
4	DnaJ	0.545	UBI	0.320	EF1α	0.236	UBC	0.262	DnaJ	0.410
5	UBQ	0.583	ACT7	0.383	TUBα	0.325	EF1α	0.264	UBQ	0.487
6	UBI	0.650	DnaJ	0.603	UBC	0.366	UBI	0.292	UBI	0.492
7	18S rRNA	0.734	UBQ	0.673	DnaJ	0.366	TUBβ	0.376	TUBβ	0.616
8	TUBβ	0.869	UBC	0.846	TUBβ	0.472	UBQ	0.404	UBC	0.660
9	UBC	0.882	TUBα	0.992	UBI	0.490	TUBα	0.543	TUBα	0.749
10	TUBα	1.079	18S rRNA	1.882	18S rRNA	0.744	18S rRNA	0.557	18S rRNA	0.830
11	ACT	1.257	ACT	2.409	ACT	1.288	ACT	0.702	ACT	1.262