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. 2015 Apr 6;66(11):3215–3227. doi: 10.1093/jxb/erv144

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© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 7. — (A) Difference between the mean FT-IR spectra obtained at 0 and 5 μM CdSO₄ for NM (I28) and M (AU, PL22, I16) A. halleri individuals and A. lyrata petraea (LYR). Student t-test was computed at every wave number with the significant level of 1%. Each marked wave number (thicker stars) indicates a statistically significant difference between treatments. Analysis was made on at least 12 FT-IR spectra per treatment and per population. Note that spectra have been offset for better readability. (B) Hierarchical classification of the difference spectra presented in (A). Classification was based on euclidian distances. (This figure is available in colour at JXB online.)