A more detailed phylogenetic distribution is available in rRNA Introns Table 3B (H-3E.10).

The rules for removing a gene were based on phylogenetic distribution of orthologs among the unannotated genomes of three serovars of Salmonella enterica (sv.

The tryptophan repressor (TrpR) is quite limited in its phylogenetic distribution, being consistently present only within the enteric lineage, as shown in the protein tree of Figure 1.

Despite the potential importance of the arsC gene at both a physiological and environmental level, a thorough study of the phylogenetic distribution of different arsC genes has not been performed.

This phylogenetic distribution hinders reconstruction of the large-genome ancestors of pathogenic lineages and of the events leading from a large genome to a very small one.

In evolutionary biology, an orphan gene is a gene that has limited phylogenetic distribution.

This also means that these genes lack detectable homology to organisms outside such phylogenetic distribution.

Both PtaRNA1 and the adjacent coding gene, which only appear only in combination, have an erratic phylogenetic distribution.

The thoroughly studied repressor protein that regulates tryptophan biosynthesis in E. coli is of limited phylogenetic distribution.

The phylogenetic distribution is a bit confusing, since slime mold diverged earlier than the animal/fungal split.