Recent work from the lab. Even after hundreds of generations of intense directional selection at relatively small Ne, substantial genetic variation persists, and can be rapidly redeployed when the direction of selection reverses. Results are suggestive of balancing selection. doi.org/10.1093/molb...
Beyond Fixation: Persistent Genetic Variation Under Intense SelectionAbstract. Understanding how and why genetic variation is maintained under sustained selection remains a central question in evolutionary genetics. Experimedoi.org