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. 2011 Sep 26;6(9):e24988. doi: 10.1371/journal.pone.0024988

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Hu et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Each colored segment indicates the relative contribution of a functional category as a percentage of total COGs. The color of each COG family is indicated in the figure. (A), COG functional categories of R61 strain-special genes. (B), COG functional categories of R61 strain-loss genes.