I will be presenting my latest paper on the evolution of bacteria in the gut microbiome at the New York Area Population Genomics Meeting at Cold Spring Harbor.
Bacteria in the microbiome can potentially respond to selective pressures in many ways. One possible mechanism could be via a change in the relative abundances of species. Alternatively, a better fit strain could invade the population. Or, a pre-existing strain could evolve an adaptive mutation. Although differences in species abundances and the genetic composition between samples has been well-studied, little is known about whether lineages within a healthy host can evolve. Here is a preview of the hypotheses I will be addressing in my talk!