Origin of an animal mitochondrial DNA polymerase subunit via lineage-specific acquisition of a glycyl-tRNA synthetase from bacteria of the Thermus-Deinococcus group.

Wolf YI, Koonin EV
Trends Genet (2001), Volume 17, Page 431
PubMed entry


Phylogenetic tree analysis shows that the accessory subunit animal ...
Phylogenetic tree analysis shows that the accessory subunit animal mitochondrial DNA polymerase emerges as a result of horizontal transfer of the gene encoding glycyl-tRNA synthetase from a bacterium of the Thermus-Deinococcus group into the animal nuclear genome. This acquisition by a distinct eukaryotic lineage of a gene encoding a mitochondrial protein from a nonmitochondrial bacterial source underscores the contribution of different types of horizontal transfer event to the evolution of eukaryotes.




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