Figure 1
From: Biased gene transfer and its implications for the concept of lineage
Phylogenetic analyses of Phenylalanyl-tRNA synthetases (PheRS). Maximum likelihood phylogenetic tree of the (A) α subunit and (B) β subunit of PheRS across the three domains of life. A detailed look at the Spirochaete (C) PheRS- α and (D) PheRS-β subunits shows close relationships with the Archaea. Numbers on the nodes indicate bootstrap support under maximum likelihood (left) and distance (middle), and posterior probabilities (right) [59].