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A rooted phylogeny ...
A rooted phylogeny resolves early bacterial evolution
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- Coleman, Gareth A. (författare)
- Univ Bristol, Sch Biol Sci, Bristol BS8 1TQ, Avon, England.
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- Davin, Adrian A. (författare)
- Univ Queensland, Australian Ctr Ecogen, Sch Chem & Mol Biosci, Brisbane, Qld 4072, Australia.
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- Mahendrarajah, Tara A. (författare)
- Royal Netherlands Inst Sea Res, NIOZ, Dept Marine Microbiol & Biogeochem, NL-1790 AB Den Burg, Netherlands.
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- Szantho, Lenard L. (författare)
- Eotvos Lorand Univ, Dept Biol Phys, H-1117 Budapest, Hungary.;Lendulet Evolutionary Genom Res Grp, MTA ELTE, H-1117 Budapest, Hungary.
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- Spang, Anja (författare)
- Uppsala universitet,Molekylär evolution,Royal Netherlands Inst Sea Res, NIOZ, Dept Marine Microbiol & Biogeochem, NL-1790 AB Den Burg, Netherlands.
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- Hugenholtz, Philip (författare)
- Univ Queensland, Australian Ctr Ecogen, Sch Chem & Mol Biosci, Brisbane, Qld 4072, Australia.
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- Szöllösi, Gergely J. (författare)
- Eotvos Lorand Univ, Dept Biol Phys, H-1117 Budapest, Hungary.;Lendulet Evolutionary Genom Res Grp, MTA ELTE, H-1117 Budapest, Hungary.;Ctr Ecol Res, Inst Evolut, H-1121 Budapest, Hungary.
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- Williams, Tom A. (författare)
- Univ Bristol, Sch Biol Sci, Bristol BS8 1TQ, Avon, England.
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Univ Bristol, Sch Biol Sci, Bristol BS8 1TQ, Avon, England Univ Queensland, Australian Ctr Ecogen, Sch Chem & Mol Biosci, Brisbane, Qld 4072, Australia. (creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2021
- 2021
- Engelska.
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Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 372:6542
- Relaterad länk:
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https://research-inf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- A rooted bacterial tree is necessary to understand early evolution, but the position of the root is contested. Here, we model the evolution of 11,272 gene families to identify the root, extent of horizontal gene transfer (HGT), and the nature of the last bacterial common ancestor (LBCA). Our analyses root the tree between the major clades Terrabacteria and Gracilicutes and suggest that LBCA was a free-living flagellated, rod-shaped double-membraned organism. Contrary to recent proposals, our analyses reject a basal placement of the Candidate Phyla Radiation, which instead branches sister to Chloroflexota within Terrabacteria. While most gene families (92%) have evidence of HGT, overall, two-thirds of gene transmissions have been vertical, suggesting that a rooted tree provides a meaningful frame of reference for interpreting bacterial evolution.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
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