Effects of environmental stress on mRNA expression levels of seven genes related to oxidative stress and growth in Atlantic salmon Salmo salar L. of farmed, hybrid and wild origin

Table 5 Median ΔΔCq values of the seven genes in farmed and hybrid-, relative to wild salmon

Group	HSP70		GR***		Cu/ ZnSOD*		MnSOD**		GP**		IGF- 1***		IGF-1R
Wild	0	(a,a)	0	(a,a)	0	(a,a)	0	(a,a)	0	(a,a)	0	(a,a)	0	(a,a)
Hybrid	0.01	(a,a)	0.27	(b,b)	0.13	(b,ab)	0.17	(b,b)	0.32	(b,b)	0.32	(b,b)	0.00	(a,a)
Farm	0.03	(a,a)	0.18.	(b,b)	0.15	(b,b)	0.09	(a,a)	0.35	(b,b)	0.36	(b,b)	0.07	(a,a)

Upregulated mRNA levels are displayed as positive values (multiplied by −1). The statistical significance of the effect of genetic origin on gene expressions, in general, is marked with asterisks, where * = P ≤ 0.05, ** = P ≤ 0.01 and *** = P ≤ 0.001. Letters in brackets represent statistical significance among the three origins, the first with the significance level set at P ≤ 0.05 and the second with the Bonferroni correction for multiple comparisons, P ≤ 0.017.

ISSN: 1756-0500