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Comparative Analysis of Stress Induced Gene Expression in Caenorhabditis elegans following Exposure to Environmental and Lab Reconstituted Complex Metal Mixture

Fig 7

Principal component analysis.

The PCA analysis was based on the gene expression pattern in C. elegans exposed to water samples from lake Hornträsket (H), Vormbäcken stream at Björkås (B), Vormbäcken stream at the outlet to Vindelälven (V), K-medium prepared with Milli-Q water (C) and metal cocktail (MC). A. Score plot showing the distribution following exposure to environmental waters and control water based on gene expression. The ellipse shows Hotellings T2 (0.05). B. PCA loading plot showing the distribution of the measured variables following exposure to the environmental waters and the K-medium control. C. Score plot showing the distribution following exposure to the MC, environmental waters and control water based on gene expression. The ellipse shows Hotellings T2 (0.05). D. PCA loading plot shows the distribution of the measured variables following exposure to the MC, environmental waters and the control (K-medium prepared with Milli-Q water).

Fig 7

doi: https://doi.org/10.1371/journal.pone.0132896.g007