Journal
TRENDS IN ECOLOGY & EVOLUTION
Volume 24, Issue 12, Pages 649-658Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tree.2009.06.011
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Funding
- Yale University
- NIH [T32 GM007499]
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Analyses of gene expression data sets for multiple individuals and species promise to shed light on the mode of evolution of gene expression. However, complementary complexities challenge this goal. Characterization of the genetic variation underlying gene expression can easily be compromised by lack of environmental control. Conversely, the breadth of conclusions from studies of environmental effects has been limited by the use of single strains. Controlled studies have hinted at extensive gene x environment interaction. Thus, both genetics and environment are key components in models of the evolution of gene expression. We review the literature on the evolution of gene expression in terms of genetics (G), environmental response (E) and G x E interactions to make this conceptual point.
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