Table 2.

Expression stability of the eight candidate reference genes in S. litura by BestKeeper algorithm.

Gene name	Cuticle			Fat body			Midgut			Larva			All samples
	Rank	Std dev [±CP]	Coff. of corr.[r]	Rank	Std dev [±CP]	Coff. of corr.[r]	Rank	Std dev [±CP]	Coff. of corr.[r]	Rank	Std dev [±CP]	Coff. of corr.[r]	Rank	Std dev [±CP]	Coff. of corr.[r]
Actin	7	0.329	0.686	1	0.333	0.852	2	0.248	0.756	5	0.253	0.738	7	0.990	0.256
EF-1α	2	0.164	0.822	6	0.442	0.866	6	0.422	0.955	3	0.176	0.855	4	0.372	0.886
EF2	1	0.159	0.657	3	0.401	0.926	3	0.254	0.877	1	0.160	0.901	5	0.404	0.923
GAPDH	8	0.500	0.609	8	0.847	0.722	4	0.332	0.149	8	0.380	0.385	6	0.585	0.530
RPL7A	5	0.244	0.614	4	0.410	0.979	8	0.468	0.943	4	0.235	0.676	3	0.329	0.822
RPL13A	4	0.233	0.696	5	0.416	0.919	7	0.422	0.875	2	0.167	0.538	2	0.323	0.850
α-Tubulin	3	0.216	0.621	7	0.464	0.538	5	0.337	0.811	7	0.342	0.602	8	1.59	0.509
β-Tubulin	6	0.312	0.619	2	0.341	0.947	1	0.159	0.498	6	0.281	0.757	1	0.286	0.749