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BioMed Central | Full text | Signature proteins that are distinctive of alpha proteobacteria |
 | | The deeper branching and distinctness of Bradyrhizobiaceae and Methylobacteriaceae from other Rhizobiales is also strongly supported by phylogenetic analyses based on different gene sequences and conserved indels in many proteins [1,17,45]. |
| | Trp-tRNA synthetase, LytB metalloproteinase) provide evidence that that the Bradyrhizobiaceae family is distantly related to other Rhizobiales (Rhizobiaceae, Brucellaceae, Phyllobacteriaceae), and it has branched prior to the latter groups of species [1,17,45]. |
| | Thus, it is likely that these signature proteins evolved in a common ancestor of various other Rhizobiales after the divergence of the Bradyrhizobiaceae family (Figure 1). |
| www.biomedcentral.com /1471-2164/6/94 (6571 words) |
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