Genes that did not show significant change in expression in C. elegans exposed to the metal cocktail and environmental waters.

Genes exhibiting no change in expression from the control in C. elegans treated with the metal cocktail (MC) or waters from Lake Hornträsket (H) and Vombäcken stream at Björnås (B) and the exit to Vindelälven (V). Genes include those associated with heat shock response (hsf-1, sip-1), oxidative stress response (osr-1, skn-1, prdx-2, daf-2), development (fem-1), innate immunity (lys-7, abf-2, tol-1) and apoptosis (cep-1, wah-1). One way analysis of variance (ANOVA) followed by Tukey’s post-test was used for multiple group comparison where * refers to p<0.01 as compared to control and # represents significant differences between the sites H, B and V. The dotted line represents the expression level normalized to that of the control (K-medium prepared with Milli-Q water).

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