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Measuring genome evolution

Open access
Huynen, Martijn A., Bork, Peer·1998·Proceedings of the National Academy of Sciences

Abstract

The determination of complete genome sequences provides us with an opportunity to describe and analyze evolution at the comprehensive level of genomes. Here we compare nine genomes with respect to their protein coding genes at two levels: ( i ) we compare genomes as “bags of genes” and measure the fraction of orthologs shared between genomes and ( ii ) we quantify correlations between genes with respect to their relative positions in genomes. Distances between the genomes are related to their divergence times, measured as the number of amino acid substitutions per site in a set of 34 orthologous genes that are shared among all the genomes compared. We establish a hierarchy of rates at which genomes have changed during evolution. Protein sequence identity is the most conserved, followed by the complement of genes within the genome. Next is the degree of conservation of the order of genes, whereas gene regulation appears to evolve at the highest rate. Finally, we show that some genomes are more highly organized than others: they show a higher degree of the clustering of genes that have orthologs in other genomes.

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Metadata

Authors
Huynen, M. A., & Bork, P.
Venue
Proceedings of the National Academy of Sciences
Published
1998-05-26
Volume
95
Issue
11
Pages
5849-5856
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2053501576
Cited by
442
References
4
FWCI
8.44
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Measuring genome evolution. https://app.cochat.ai/papers/10.1073/pnas.95.11.5849
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Huynen, M. A., & Bork, P. (1998). Measuring genome evolution. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.95.11.5849

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