publication . Article . 2004

Phylogenetic reconstruction and lateral gene transfer

Yan Boucher;
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  • Published: 01 Jan 2004
Abstract
Lateral gene transfer (LGT) is often seen as a form of noise, obscuring the phylogenetic signal with which we might hope to reconstruct the evolution of a group of organisms, or indeed the history of all life (the Tree of Life). Such reconstruction might still be possible if the subset of genes conserved among all genomes in a group (or common to all genomes) comprise a core that is relatively refractory to LGT. Several papers designed to test this notion have recently appeared, and here we re-analyze one, which claims that the core of single-copy orthologs shared by all sequenced genomes of the gammaproteobacteria is essentially free of LGT. This conclusion is ...
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