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J Bacteriol. 2008 Feb;190(3):1124-7. Epub 2007 Nov 30.

Evolution of acetoclastic methanogenesis in Methanosarcina via horizontal gene transfer from cellulolytic Clostridia.

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  • 1Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut 06269-31258, USA.

Abstract

Phylogenetic analysis confirmed that two genes required for acetoclastic methanogenesis, ackA and pta, were horizontally transferred to the ancestor of Methanosarcina from a derived cellulolytic organism in the class Clostridia. This event likely occurred within the last 475 million years, causing profound changes in planetary methane biogeochemistry.

PMID:
18055595
PMCID:
PMC2223567
DOI:
10.1128/JB.01382-07
[PubMed - indexed for MEDLINE]
Free PMC Article
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