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Rapid evolutionary innovation during an Archaean genetic expansion

Author

Listed:
  • Lawrence A. David

    (Computational & Systems Biology Initiative, Massachusetts Institute of Technology)

  • Eric J. Alm

    (Computational & Systems Biology Initiative, Massachusetts Institute of Technology
    Massachusetts Institute of Technology
    The Broad Institute)

Abstract

Prehistory is in the genes Hidden in the modern-day genomes of today's living organisms are the imprints of ancient biogeochemical events. Lawrence David and Eric Alm have developed a new algorithm designed to reconstruct ancient genomes, taking into account the confounding effects of horizontal gene transfer and phylogenetic uncertainty. Applying this to around 100,000 gene sequences from present-day organisms, they find the genetic imprints of major events in Earth's history, including the gradual rise of oxygen starting more than 2.5 billion years ago, and a previously unreported brief but massive expansion in genetic diversity in the Archaean, more than 2 billion years before the Cambrian explosion.

Suggested Citation

  • Lawrence A. David & Eric J. Alm, 2011. "Rapid evolutionary innovation during an Archaean genetic expansion," Nature, Nature, vol. 469(7328), pages 93-96, January.
    • Handle: RePEc:nat:nature:v:469:y:2011:i:7328:d:10.1038_nature09649
    DOI: 10.1038/nature09649
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    Cited by:

    1. Joanne S. Boden & Juntao Zhong & Rika E. Anderson & Eva E. Stüeken, 2024. "Timing the evolution of phosphorus-cycling enzymes through geological time using phylogenomics," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    2. Daniel R. Colman & Lisa M. Keller & Emilia Arteaga-Pozo & Eva Andrade-Barahona & Brian Clair & Anna Shoemaker & Alysia Cox & Eric S. Boyd, 2024. "Covariation of hot spring geochemistry with microbial genomic diversity, function, and evolution," Nature Communications, Nature, vol. 15(1), pages 1-22, December.

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