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. 2006 Feb 17;2(2):e21. doi: 10.1371/journal.pgen.0020021

Figure 1. Phylogenetic Tree of the α-Proteobacteria.

Figure 1

The protein sequences of select conserved genes were concatenated and aligned, and a phylogenetic tree was inferred of all sequenced α-Proteobacteria (see Materials and Methods). The Anaplasmataceae (purple) and the Rickettsiaceae (yellow) are highlighted.