• , University of Arizona, Tucson, United States of America
  • Adaptation, Evolutionary Applications, Experimental Evolution, Genome Evolution, Genotype-Phenotype, Molecular Evolution, Other, Phenotypic Plasticity, Population Genetics / Genomics, Reproduction and Sex, Species interactions
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Our research focuses on understanding the genetic basis for bacterial interactions with other organisms (be they plants, insects, fungi, other bacteria), and on how evolution shapes these interactions. We approach these questions with a variety of tools, from screening for mutants using "toothpicks and agar plates" to experimental evolution to comparative genomics (and pretty much everything in between).

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Negative frequency-dependent selection is frequently confounding
Dustin Brisson

Recommended by Ignacio Bravo based on reviews by David Baltrus and 2 anonymous reviewers
Unmasking the delusive appearance of negative frequency-dependent selection

Explaining the processes that maintain polymorphisms in a population has been a fundamental line of research in evolutionary biology. One of the main mechanisms identified that preserves genetic diversity is negative frequency-dependent selection (NFDS), which constitutes a powerful framework for interpreting the presence of persistent polymorphisms. Nevertheless, a number of patterns that are often explained by invoking NFDS may also be compatible with, and possibly more easily explained by, di...