Use Read by QxMD to access full text via your institution or open access sources. Read also provides personalized recommendations to keep you up to date in your field. We speculate that this may be Acme T071 by the concept of fitness cost. Although horizontal gene transfer introduces useful traits, acquired DNA imposes Acme T071 burden on a host bacterium. The metabolic cost associated with replication and expression of a newly acquired gene s is high. Shorter variants A-3, B-1,[…]