Table 2.

Ranking of candidate reference genes by expression stability levels determined via NormFinder.

Rank	Tissues		Different developing flowers		Total
	Gene name	Stability value	Gene name	Stability value	Gene name	Stability value
1	ACT5	0.114	EF1-à	0.114	EF1-à	0.218
2	RPL3	0.141	ACT5	0.169	RPL3	0.270
3	18S	0.216	EF1-γ	0.280	NAC	0.346
4	EF1-à	0.298	NAC	0.291	EF1-γ	0.371
5	FAD	0.397	FAD	0.416	18S	0.411
6	NAC	0.419	RPL3	0.444	ACT5	0.435
7	EF1-γ	0.465	GAPDH	0.487	FAD	0.435
8	UBC	0.608	18S	0.526	ACT7	0.725
9	ACT7	0.664	UBC	0.832	UBC	0.750
10	GAPDH	1.314	ACT7	0.861	GAPDH	0.993
11	TUB	1.381	TUB	1.238	TUB	1.306