Gene Acquisitions from Bacteria at the Origins of Major Archaeal Clades Are Vastly Overestimated - Archive ouverte HAL Access content directly
Journal Articles Molecular Biology and Evolution Year : 2016

Gene Acquisitions from Bacteria at the Origins of Major Archaeal Clades Are Vastly Overestimated

Abstract

In a recent article, Nelson-Sathi et al. (NS) report that the origins of major archaeal lineages (MAL) correspond to massive group-specific gene acquisitions via HGT from bacteria (Nelson-Sathi et al. 2015. Origins of major archaeal clades correspond to gene acquisitions from bacteria. Nature 517(7532):77-80.). If correct, this would have fundamental implications for the process of diversification in microbes. However, a reexamination of these data and results shows that the methodology used by NS systematically inflates the number of genes acquired at the root of each MAL, and incorrectly assumes bacterial origins for these genes. A reanalysis of their data with appropriate phylogenetic models accounting for the dynamics of gene gain and loss between lineages supports the continuous acquisition of genes over long periods in the evolution of Archaea.
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Dates and versions

hal-01913926 , version 1 (06-11-2018)

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Mathieu Groussin, Bastien Boussau, Gergely J Szollosi, Laura Eme, Manolo Gouy, et al.. Gene Acquisitions from Bacteria at the Origins of Major Archaeal Clades Are Vastly Overestimated. Molecular Biology and Evolution, 2016, 33 (2), pp.305 - 310. ⟨10.1093/molbev/msv249⟩. ⟨hal-01913926⟩
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