Journal
BIOCHEMICAL SOCIETY TRANSACTIONS
Volume 32, Issue -, Pages 168-171Publisher
PORTLAND PRESS LTD
DOI: 10.1042/BST0320168
Keywords
biogenesis; hyperthermophile; last common ancestor (LCA); reverse gyrase
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We revisit the case for the hyperthermophilic scenario for the origin of life and the last common ancestor. Evidence includes studies of phylogenetic trees, rRNA, G and C content, hyperthermophilic proteins, correlations between maximal temperature tolerances and genetic distances, saline stabilization of DNA/RNA, and the inferred climatic temperatures of the early Earth. Although some doubts remain, the case for hot biogenesis and the last common ancestor has gotten stronger.
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