Timing the evolution of phosphorus-cycling enzymes through geological time using phylogenomics

Joanne S. Boden (), Juntao Zhong, Rika E. Anderson and Eva E. Stüeken
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Joanne S. Boden: University of St. Andrews, Bute Building, Queen’s terrace
Juntao Zhong: Washington University in St. Louis
Rika E. Anderson: Carleton College
Eva E. Stüeken: University of St. Andrews, Bute Building, Queen’s terrace

Nature Communications, 2024, vol. 15, issue 1, 1-12

Abstract: Abstract Phosphorus plays a crucial role in controlling biological productivity, but geological estimates of phosphate concentrations in the Precambrian ocean, during life’s origin and early evolution, vary over several orders of magnitude. While reduced phosphorus species may have served as alternative substrates to phosphate, their bioavailability on the early Earth remains unknown. Here, we reconstruct the phylogenomic record of life on Earth and find that phosphate transporting genes (pnas) evolved in the Paleoarchean (ca. 3.6-3.2 Ga) and are consistent with phosphate concentrations above modern levels ( > 3 µM). The first gene optimized for low phosphate levels (pstS;

Date: 2024
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DOI: 10.1038/s41467-024-47914-0

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