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. 2016 Dec 26;68(2):241–254. doi: 10.1093/jxb/erw451

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© The Author 2016. 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/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 3. — Distribution of photosynthetic types in ecological space. The median ± 10th and 90th quantiles for the first two principal component axes (PC1 and PC2) of the climate (A) and soil fertility (B) PCAs for C₃ sister (blue), C₃–C₄ (green), and C₄ sister (red) taxa. The associated variable factor maps for the climate and soil fertility PCAs are shown in (C, D). Shifts in the primary axis of the climatic (E) and soil fertility (F) PCAs, as comparisons between C₃–C₄ taxa and their closely related C₃ (blue) and C₄ (red) sister taxa within each phylogenetic group. Comparisons of C₃–C₄ taxa and their C₃ relatives in groups that lack close C₄ relatives are presented as blue triangles. Black lines indicate the 1:1 relationship. Linear relationships are shown for correlations significant after correction for multiple testing (P<0.00625), in the relevant color (see Table 3).