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. 2010 Feb 26;6(2):e1000783. doi: 10.1371/journal.ppat.1000783

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This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

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(A) Hierarchichal clustering of normalized microarray data sets of Y. pestis gene expression in the rat bubo and the flea. The scale indicates relative transcript levels (blue = low; red = high) for all 4,638 Y. pestis genes on the microarray. (B) Percentages of Y. pestis genes that are differentially regulated (or not) in the flea and in the rat bubo.