Abstract:Gene-by-Environment (GxE) interactions are fundamental to understanding fitness landscapes and evolution, but have been difficult to identify at the single-nucleotide level, precluding understanding of their prevalence and molecular mechanisms. Most examples involving natural genetic variants exist at the level of entire genomes, e.g. measurement of microbial strain growth across environments, or loci encompassing many variants identified by quantitative trait loci mapping. Here, we introduce CRISPEY-BAR, a hi… Show more
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