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A rooted species phylogeny showing 3 lateral gene transfers (LGTs).
Notes: Arrows indicate the direction of the gene transfers. The dotted lines highlight the uncertain phylogenetic positions of D.rerio and C. myriaster (see text for additional details). The cross hatch specifies the internal branch on which the cysteine in amino acid site 110 (see table 2) most likely evolved; that is, when assuming that the LGT events happened as shown here (see text for details).
