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Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks
Published on: September 25, 2021
Polyphasic evidence delineating the root of life and roots of biological domains
J Tze-Fei Wong1, Jianhuan Chen, Wai-Kin Mat
1Department of Biochemistry and Applied Genomics Center, Hong Kong University of Science & Technology, Clear Water Bay, Hong Kong, China. bcjtw@ust.hk
Abstract:
Twenty different lines of polyphasic evidence obtained from tRNA and protein sequences, anticodon usages, gene contents, metabolism and geochemistry have made possible the identification of a Last Universal Common Ancestor (LUCA) phylogenetically located proximal to the hyperthermophilic methanogenic archaeon Methanopyrus. Combined with analysis of high-similarity cross-domain tRNA pairs, the evidence also suggests a Thermotoga-proximal Last Bacterial Common Ancestor (LBACA) that originated from Crenarchaeota close to Aeropyrum, and a Plasmodium-proximal Last Eukaryotic Common Ancestor (LECA) derived from Ferroplasma through endosymbiosis.
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