High-throughput genetic interaction mapping in the fission yeast Schizosaccharomyces pombe

Assen Roguev, Marianna Wiren, Jonathan S. Weissman, Nevan J. Krogan

Research output: Contribution to journalArticlepeer-review

128 Scopus citations

Abstract

Epistasis analysis, which reports on the extent to which the function of one gene depends on the presence of a second, is a powerful tool for studying the functional organization of the cell. Systematic genome-wide studies of epistasis, however, have been limited, with the majority of data being collected in the budding yeast, Saccharomyces cerevisiae. Here we present two 'pombe epistasis mapper' strategies, PEM-1 and PEM-2, which allow for high-throughput double mutant generation in the fission yeast, S. pombe. These approaches take advantage of a previously undescribed, recessive, cycloheximide-resistance mutation. Both systems can be used for genome-wide screens or for the generation of high-density, quantitative epistatic miniarray profiles (E-MAPs). Since S. cerevisiae and S. pombe are evolutionary distant, this methodology will provide insight into conserved biological pathways that are present in S. pombe, but not S. cerevisiae, and will enable a comprehensive analysis of the conservation of genetic interaction networks.

Original languageEnglish
Pages (from-to)861-866
Number of pages6
JournalNature Methods
Volume4
Issue number10
DOIs
StatePublished - Oct 2007
Externally publishedYes

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