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Natural history and evolutionary principles of gene duplication in fungi

Author

Listed:
  • Ilan Wapinski

    (Broad Institute of MIT and Harvard, 7 Cambridge Center, Cambridge, Massachusetts 02142, USA
    FAS Center for Systems Biology, Harvard University, 7 Divinity Avenue
    School of Engineering and Applied Sciences, Harvard University, 33 Oxford Street, Cambridge, Massachusetts 02138, USA)

  • Avi Pfeffer

    (School of Engineering and Applied Sciences, Harvard University, 33 Oxford Street, Cambridge, Massachusetts 02138, USA)

  • Nir Friedman

    (School of Computer Science and Engineering, Hebrew University)

  • Aviv Regev

    (Broad Institute of MIT and Harvard, 7 Cambridge Center, Cambridge, Massachusetts 02142, USA
    Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA)

Abstract

Gene duplication and loss is a powerful source of functional innovation. However, the general principles that govern this process are still largely unknown. With the growing number of sequenced genomes, it is now possible to examine these events in a comprehensive and unbiased manner. Here, we develop a procedure that resolves the evolutionary history of all genes in a large group of species. We apply our procedure to seventeen fungal genomes to create a genome-wide catalogue of gene trees that determine precise orthology and paralogy relations across these species. We show that gene duplication and loss is highly constrained by the functional properties and interacting partners of genes. In particular, stress-related genes exhibit many duplications and losses, whereas growth-related genes show selection against such changes. Whole-genome duplication circumvents this constraint and relaxes the dichotomy, resulting in an expanded functional scope of gene duplication. By characterizing the functional fate of duplicate genes we show that duplicated genes rarely diverge with respect to biochemical function, but typically diverge with respect to regulatory control. Surprisingly, paralogous modules of genes rarely arise, even after whole-genome duplication. Rather, gene duplication may drive the modularization of functional networks through specialization, thereby disentangling cellular systems.

Suggested Citation

  • Ilan Wapinski & Avi Pfeffer & Nir Friedman & Aviv Regev, 2007. "Natural history and evolutionary principles of gene duplication in fungi," Nature, Nature, vol. 449(7158), pages 54-61, September.
    • Handle: RePEc:nat:nature:v:449:y:2007:i:7158:d:10.1038_nature06107
    DOI: 10.1038/nature06107
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    Cited by:

    1. Alex N Nguyen Ba & Bob Strome & Jun Jie Hua & Jonathan Desmond & Isabelle Gagnon-Arsenault & Eric L Weiss & Christian R Landry & Alan M Moses, 2014. "Detecting Functional Divergence after Gene Duplication through Evolutionary Changes in Posttranslational Regulatory Sequences," PLOS Computational Biology, Public Library of Science, vol. 10(12), pages 1-15, December.
    2. Ci Fu & Xiang Zhang & Amanda O. Veri & Kali R. Iyer & Emma Lash & Alice Xue & Huijuan Yan & Nicole M. Revie & Cassandra Wong & Zhen-Yuan Lin & Elizabeth J. Polvi & Sean D. Liston & Benjamin VanderSlui, 2021. "Leveraging machine learning essentiality predictions and chemogenomic interactions to identify antifungal targets," Nature Communications, Nature, vol. 12(1), pages 1-18, December.
    3. Lit-Hsin Loo & Danai Laksameethanasan & Yi-Ling Tung, 2014. "Quantitative Protein Localization Signatures Reveal an Association between Spatial and Functional Divergences of Proteins," PLOS Computational Biology, Public Library of Science, vol. 10(3), pages 1-17, March.

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