Two Epistasis Papers in Science

There are two papers on epistasis in the June 3rd issue of Science.

Khan AI, Dinh DM, Schneider D, Lenski RE, Cooper TF. Negative epistasis between beneficial mutations in an evolving bacterial population. Science. 2011 Jun 3;332(6034):1193-6. PubMed PMID: 21636772. [PubMed]

Chou HH, Chiu HC, Delaney NF, Segrè D, Marx CJ. Diminishing returns epistasis among beneficial mutations decelerates adaptation. Science. 2011 Jun 3;332(6034):1190-2. PubMed PMID: 21636771. [PubMed]