Exploring conditional gene essentiality through systems genetics approaches in yeast.

Curr Opin Genet Dev

Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland. Electronic address:

Published: October 2022

AI Article Synopsis

  • An essential gene is crucial for a cell's survival, but determining which genes are essential isn’t always straightforward, especially in yeast.
  • Research shows there are two types of essential genes: core essential genes that are always necessary for life and conditional essential genes that can become important depending on the genetic makeup and environmental factors.
  • This review focuses on the latest findings about gene essentiality in yeast, highlighting how core essential genes differ from those that depend on specific conditions or contexts.

Article Abstract

An essential gene encodes for a cellular function that is required for viability. Although viability is a straightforward phenotype to analyze in yeast, defining a gene as essential is not always trivial. Gene essentiality has generally been studied in specific laboratory strains and under standard growth conditions, however, essentiality can vary across species, strains, and environments. Recent systematic studies of gene essentiality revealed that two sets of essential genes exist: core essential genes that are always required for viability and conditional essential genes that vary in essentiality in different genetic and environmental contexts. Here, we review recent advances made in the systematic analysis of gene essentiality in yeast and discuss the properties that distinguish core from context-dependent essential genes.

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Source
http://dx.doi.org/10.1016/j.gde.2022.101963DOI Listing

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