This Week in Science

In Science this week, researchers from Michigan State University publish data suggesting that there is no limit to how much evolutionary fitness can increase in a given population. Drawing on 12 E. coli populations that were founded from a common ancestor in 1988, the scientists examined the fitness trajectories for those bacterial populations over the course of 50,000 generations. They found no upper limit on fitness gains, as measured by increases in growth rates.

Get the full story

This story is free
for registered users

Registering provides access to this and other free content.

Register now.

Already have an account?
Login Now.

Related Posts

In Science this week: swapping yeast genes with human orthologs to study conservation of function, and more.

Hong Kong is using DNA phenotyping to shame litterers.

A study appearing in Cell suggests some metastatic castration-resistant prostate cancer patients could benefit from PARP inhibitor therapy.

NIH's Francis Collins writes that scientific advances are poised to help populations all over the world, but more scientists are needed to keep the momentum.