Figure 4. Protein identifications from the Columbia River isolates are mapped to the reference genomes S. oneidensis MR-1 (panel A) and S. putrefaciens CN32 (B).

While all organisms were grown under the same conditions, observation of no protein expression compared to the reference proteome reveals that these organisms have undergone evolutionary divergence, which is reflected in protein expression. Also shown are the protein identifications for each of the Shewanella species mapped onto their respective genomes, as well as the protein orthologs across species. Two regions of ‘missing’ proteome information from the Hanford Reach isolates are highlighted.