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Trends Genet. 2009 Apr;25(4):152-5. doi: 10.1016/j.tig.2009.03.001. Epub 2009 Mar 13.

The complex relationship of gene duplication and essentiality.

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  • 1Smurfit Institute of Genetics, University of Dublin, Trinity College, Dublin 2, Ireland.

Abstract

In yeast and worm, duplicate genes overlap in function so that deleting one of a pair from the genome is less likely to be lethal than deleting a singleton gene. By contrast, previous analyses showed that mouse duplicate genes were as essential as singletons. We show that the relationship between gene duplication and essentiality is complex in multicellular organisms, with developmental genes and genes that were duplicated by whole genome duplication being more essential than other duplicated genes.

PMID:
19285746
[PubMed - indexed for MEDLINE]
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