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    Genome Res. 2008 Mar;18(3):462-8. Epub 2008 Jan 29.

    Coevolution of gene families in prokaryotes.

    Source

    Theoretical Biology and Bioinformatics, University of Utrecht, 3584 CH Utrecht, The Netherlands. o.x.corderosanchez@uu.nl

    Abstract

    We study gene family coevolution on a tree of life based on a large-scale ancestral gene content reconstruction, which includes gene duplication and deletion events. The insights obtained from this study are threefold: (1) Global properties, such as the distribution of coevolution partners and the formation of disconnected clusters of coevolving families, can be an inevitable consequence of evolution along a tree. (2) Concerted family expansion (gene duplication) and contraction (gene deletion) reflect functional constraints and therefore lead to better function prediction. (3) "Long-range" coevolutionary relationships, caused mostly by large family expansions or contractions, reveal high-level evolutionary organization of cellular processes in prokaryotes.

    PMID:
    18230804
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC2259110
    Free PMC Article

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