Few experimental studies have examined the role that sexual recombination plays in bacterial evolution. including the effects of horizontal gene transfer on genome structure. To address this limitation. we analyzed genomes from an experiment in which Escherichia coli K-12 Hfr (high frequency recombination) donors were periodically introduced into 12 evolving populations of E. https://www.petitmorpho.com/product-category/molded-fiber-container/