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. 2017 Oct 11;35(1):94–106. doi: 10.1093/molbev/msx269

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© The Author 2017. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

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. — Gene expression profiles of C₄-related genes in the studied taxa. Colors indicate leaf transcript abundance and leaf/ratio abundance ratio for C₄-related genes in C₄ and non-C₄ species. Genes that have been co-opted at least once are at the top.