Mortier, Julien Gayán, Elisa Van Eyken, Ronald Torres Montaguth Oscar Enrique Khodaparast, Ladan Khodaparast, Laleh Houben, Bert Carpentier, Sebastien Rousseau, Frederic Schymkowitz, Joost Aertsen, Abram Gene Erosion Can Lead to Gain-of-Function Alleles That Contribute to Bacterial Fitness MBIO 10.1128/mBio.01129-21 2021 2021