Table 3. Ranking of reference genes and their expression stability values calculated using BestKeeper.

Rank	Total (A)		Organs (B)		Leaves in developmental process (C)		Scales in developmental process (D)		Leaves under stress (E)		Scales under stress (F)		Roots under stress (G)
	Gene name	Stability value	Gene name	Stability value	Gene name	Stability value	Gene name	Stability value	Gene name	Stability value	Gene name	Stability value	Gene name	Stability value
1	FP	0.424	GAPDH	0.298	RH2	0.173	eIF	0.218	FP	0.212	FP	0.169	UBC	0.368
2	AP4	0.634	ACT	0.325	ACT	0.208	β-TUB	0.272	UBC	0.428	ACT	0.298	AP4	0.556
3	RH2	0.682	60S	0.334	α-TUB	0.291	FP	0.300	UBQ	0.489	GAPDH	0.555	FP	0.626
4	UBC	0.696	UBC	0.338	UBQ	0.447	AP4	0.318	AP4	0.580	RH2	0.734	GAPDH	0.632
5	UBQ	0.703	UBQ	0.382	FP	0.528	60S	0.319	ACT	0.618	AP4	0.781	ACT	0.696
6	GAPDH	0.708	FP	0.430	β-TUB	0.576	GAPDH	0.347	60S	0.629	β-TUB	0.943	RH2	0.720
7	β-TUB	0.842	AP4	0.461	AP4	0.630	ACT	0.399	eIF	0.702	eIF	1.002	α-TUB	0.822
8	ACT	0.874	RH2	0.551	GAPDH	0.745	UBC	0.484	GAPDH	0.824	UBC	1.029	UBQ	0.831
9	eIF	0.972	β-TUB	0.578	60S	0.823	UBQ	0.516	RH2	0.844	α-TUB	1.122	β-TUB	0.906
10	α-TUB	1.074	eIF	0.855	UBC	0.859	RH2	0.668	α-TUB	0.862	UBQ	1.210	eIF	1.039
11	60S	1.100	α-TUB	0.964	eIF	1.235	α-TUB	1.258	β-TUB	0.923	60S	1.289	60S	1.126
12	18S	2.024	18S	2.019	18S	1.881	18S	3.52	18S	2.738	18S	1.340	18S	1.604