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Science. 2004 Feb 6;303(5659):808-13.

Global mapping of the yeast genetic interaction network.

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  • 1Banting and Best Department of Medical Research, University of Toronto, Toronto, ON, Canada M5G 1L6.

Abstract

A genetic interaction network containing approximately 1000 genes and approximately 4000 interactions was mapped by crossing mutations in 132 different query genes into a set of approximately 4700 viable gene yeast deletion mutants and scoring the double mutant progeny for fitness defects. Network connectivity was predictive of function because interactions often occurred among functionally related genes, and similar patterns of interactions tended to identify components of the same pathway. The genetic network exhibited dense local neighborhoods; therefore, the position of a gene on a partially mapped network is predictive of other genetic interactions. Because digenic interactions are common in yeast, similar networks may underlie the complex genetics associated with inherited phenotypes in other organisms.

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PMID:
14764870
[PubMed - indexed for MEDLINE]
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